,,rollo',s ,,experiments4 ,,by ,,the ,,author ,,of ,,rollo ,,learning ,,to ,,talk1 ,,to ,,read1 ,,at ,,work1 ,,at ,,play1 ,,at ,,school1 ,,at ,,vacation1 c4 ,,boston3 ,,weeks1 ,,jordan1 ,,and ,,company ,entered according to ,act of ,congress1 in the year #ahci1 ,by ,t4 ,h4 ,,carter1 ,in the ,clerk's ,office of the ,district ,court of ,massachusetts4 ,,stereotyped ,,at ,,the ,,boston ,,type ,,and ,,stereotype ,,foundry4 ,illustration ,,contents4 ,page4 ,,jonas ,,an ,,astronomer #aa ,,pruning #bc ,,the ,,great ,,beetle ,,and ,,wedge #ce ,,the ,,little ,,beetle ,,and ,,wedge #df ,,splitting #ei ,,horology #hj ,,jonas',s ,,dial #id ,,the ,,bee-,,hive #aab ,,jonas',s ,,magnet #abd ,,magnetism #aci ,,intellectual ,,philosophy #aeg ,,oscillations #afe ,,rollo',s ,,experiments4 ,,jonas ,,an ,,astronomer4 ,one day1 when ,rollo was about seven years old1 he was sitting upon the steps of the door1 and he heard a noise in the street1 as of some sort of carriage approaching4 ,a moment afterwards1 a carryall came in sight4 ,it drove up to the front gate1 and stopped4 ,rollo's father and mother and his little brother ,nathan got out4 ,his father fastened the horse to the post1 and came in4 ,when ,rollo first heard the noise of the carryall1 he was sitting still upon the steps of the door1 thinking4 ,he was thinking of something that ,jonas1 his father's hired boy1 had told him about the sun's shining in at the barn door4 ,there was a very large double door to ,rollo's father's barn1 and as this door opened towards the south1 the sun used to shine in very warm1 upon the barn floor1 in the middle of the day4 ,rollo and ,jonas had been sitting there husking some corn1--for it was in the fall of the year2--and as it was rather a cool autumnal day1 ,rollo said it was lucky that the sun shone in1 for it kept them warm4 ,yes1 said ,jonas2 and what is remarkable1 it always shines in farther in the winter than it does in the summer4 ,does it8 said ,rollo4 ,yes1 said ,jonas4 ,and what is the reason8 asked ,rollo4 ,i don't know1 said ,jonas1 unless it is because we want it in the barn more in the winter than we do in the summer4 ,ho6 said ,rollo2 ,i don't believe that is the reason4 ,why not8 said ,jonas4 ,o1 ,i don't believe the sun moves about in the heavens1 to different places1 only just to shine into barn doors4 ,why1 it keeps a great many farmers' boys more comfortable1 said ,jonas4 ,is it so in all barns8 asked ,rollo4 ,i suppose so1 said ,jonas4 ,after some further conversation on the subject1 the boys determined to watch the reflection of the sun's beams upon the barn floor for a good many days1 and to mark the place that it came in to1 at noon every day1 with a piece of chalk4 ,it was only a few minutes before the carryall came up1 that they had determined upon this1 and had marked the place for that day2 and then ,rollo had come out of the barn1 and was sitting upon the door step1 thinking of the subject1 when his reflections were interrupted in the manner already described4 ,so1 when ,rollo saw his father getting out of the carryall1 he ran to meet him1 and called out to him1 talking very loud and rapidly1 ,father1 ,jonas says that the sun shines farther in1 upon the barn floor1 in winter than in summer2--does it1 do you think8 ,but this was not a proper time for ,rollo to bring up his philosophical question4 ,his father had a carpet bag and several packages in his hands1 and he was also conducting ,rollo's mother in1 and thinking about the horse and carryall4 ,so he told ,rollo that he must not speak to him then1 for he could not attend to him4 ,rollo then walked along back into the yard1 and began to think of the subject of the sun's shining in at the south door4 ,he looked up towards the sun1 and began to consider what sort of a change in its place1 at noon1 on different days1 would be necessary in order to account for its shining in more at south doors and windows1 on some days1 than on others4 ,he reflected that if the sun were exactly overhead1 at noon1 it could not shine in at any doors at all2 for the rays would then strike perpendicularly down the sides of the houses4 ,while he was standing thus1 lost in thought1 looking up to the sun1 with his arm across his forehead1 to shelter his eyes a little from the dazzling rays1 he suddenly felt the pressure of two soft hands upon his ears1 as of somebody who had come up behind him4 ,he turned round1 and found his cousin ,lucy standing there4 ,lucy asked him what he was thinking of1 and he told her4 ,he then took ,lucy into the barn1 and showed her the chalk mark upon the floor4 ,she looked on with a good deal of interest1 and said she thought it was an excellent plan2 and she wished there was a great barn with a south floor at their house4 ,lucy knew more about the subject than ,rollo did1 and she gave him some explanations about it4 ,you see1 said she1 that the sun rises in the east every morning1 and comes up higher and higher1 every hour1 till noon2 and then it begins to go down again1 and at last it sets in the west4 ,but1 at some times in the year1 it comes up higher at noon than it does at other times1 and so it does not shine so much into the door4 ,it shines more1 you mean1 said ,rollo4 ,no1 said ,lucy2 not so much4 ,in the winter the sun moves around by the south1 and keeps pretty low all day1 and of course shines farther into doors and windows4 ,then1 after a moment's pause1 she added1 ,if we should mark the place on the floor all the year round1 we should find what time the sun is farthest to the south4 ,so we should1 said ,rollo4 ,it would be in the winter1 said ,lucy4 ,yes1 said ,rollo2 in the middle of the winter exactly4 ,yes1 said ,lucy2 and in the middle of the summer it would be nearest overhead4 ,jonas and ,i will try it1 said ,rollo4 ,i can try it in the house1 said ,lucy1 where the sun shines in at my chamber window4 ,o no1 said ,rollo2 that won't do4 ,why not8 said ,lucy4 ,because the window does not come down to the floor1 and so does not let the sun in enough4 ,o1 that makes no difference1 said ,lucy2 we have nothing to do with the bottom of the door2 you only mark where it shines in the farthest1 and that place is made by the top of the door1 for it shines in farthest by the top of the door4 ,well1 said ,rollo1 ,i don't know but that the house will do2 but then you can't chalk on the carpet4 ,chalk on the carpet8 said ,lucy4 ,yes1 to mark the place4 ,no1 said ,lucy1 thinking2 but ,i can mark it some other way4 ,how8 asked ,rollo4 ,why1 ,i can put a pin in1 said ,lucy4 ,o dear1 said ,rollo1 with a laugh1 put a pin in6 ,that's no way to mark a shadow4 ,it isn't a shadow1 said ,lucy4 ,yes1 it is1 said ,rollo4 ,no1 said ,lucy2 a shadow is dark1 and this is bright4 ,yes1 said ,rollo1 this is a bright shadow2 some shadows are bright1 and some are dark4 ,o ,rollo6 said ,lucy2 and she turned away from him1 a little out of humor4 ,the truth was1 that ,rollo and ,lucy were getting decidedly into a dispute4 ,from the sublime heights of practical astronomy1 they had fallen1 by a sad and very rapid descent1 to a childish altercation4 ,rollo had a very high idea of the superior facilities afforded by ,jonas's barn floor for observing the daily changes in the sun's meridian altitude1 and he did not like the idea of ,lucy's finding that she had equally good opportunities for observation at her home4 ,lucy was a little fretted at ,rollo's captious spirit2 but then her mind soon became unruffled again1 and she turned back towards ,rollo1 and said1 as they walked along the yard1 ,i don't think the sunshine on the floor is a shadow1 ,rollo2 but then ,i don't see why a shadow would not do1 just as well4 ,how8 said ,rollo4 ,why1 look there at the shadow of that post1--that would do4 ,she pointed to a post with a rounded top upon it1 which stood by the side of the garden gate4 ,the shadow1 clear1 distinct1 and well defined1 was projected upon the walk2 and ,lucy told ,rollo that they might mark the place where the top of that shadow came every day1 and that that would do just as well4 ,but how could we mark it8 said ,rollo4 ,why1 we could drive a little stake unto the ground4 ,o1 that would not do1 said ,rollo4 ,people would trip over them1 and break them down4 ,they would be exactly in the walk4 ,lucy saw that this would be a difficulty1 and1 for a moment1 seemed to be at a loss4 ,at length1 she said1 ,we might go somewhere else1 then1 where the people would not come4 ,but what should we do for a post8 said ,rollo4 ,could not we get ,jonas to drive a tall stake down8 said ,lucy4 ,yes1 said ,rollo2 ,i suppose so4 ,the children went out into the garden to find a good smooth place1 and while they were walking about there1 ,rollo's mother came out1 and they told her the whole story4 ,she seemed quite interested in the plan1 and told them of a better way than any that they had thought of4 ,you see1 said she1 that the height of the stake or pole that makes the shadow is not material2 for the shadow of a small one will vary just as much1 in proportion to its length1 as that of a long one will4 ,so1 instead of taking a wooden stake1 out of doors1 you might take a large pin1 and drive it down a little way into the window sill1 in the house4 ,then you can mark the shadow with a pen1 very exactly4 ,so we can1 said ,lucy1 clapping her hands4 ,and you might put a piece of white paper1 or a card down first1 continued ,rollo's mother1 and drive the pin through that1 and then mark the places where the end of the shadow comes every day1 directly on the card1 with a fine pen4 ,thus you could be a great deal more exact than you can in chalking upon a barn floor4 ,rollo asked his mother if she would not be kind enough to help them fix their apparatus2 but she said she would give them particular directions1 though she should prefer letting them do the whole themselves1 and then1 if they met with any difficulties1 they might come and report them to her1 and she would tell them how to surmount them4 ,so she recommended to them to go and find a blank card1 or piece of white pasteboard1 or of stiff white paper1 as big as a common card4 ,then1 said she1 choose some window where the sun shines in at noon1 and put the card down upon the sill1 and drive the pin down through it4 ,but you must not drive the pin through the middle of the card1 for the shadow will always be off to the north of the pin1 and therefore the pin may be pretty near the south end of the card4 ,then the shadow will be more likely to come wholly upon the card1 even when it is longest4 ,you had better place the card in such a position1 too1 that its sides shall lie in the direction of north and south4 ,then the shadow at noon will lie along exactly in the middle of it4 ,you must get a large and stout pin1 too2 and drive it in firmly1 a little way1 with a small hammer4 ,it will be well1 too1 to drive another smaller pin into the other end of the card1 so as to keep it fixed in its north and south position4 ,how can we know when it is north and south1 exactly8 said ,lucy4 ,you cannot do it exactly1 said ,rollo's mother2 but you can get it pretty near4 ,one way is to borrow father's little compass1 and adjust it by that4 ,another way is to see when it is exactly twelve o'clock by the clock1 and then the shadow of the pin will of itself be about north4 ,then you might move the north end of the card until the shadow is brought exactly into the middle of the card1 and then put the other pin in1 and fix it in that place4 ,then if you make a mark along where the shadow comes1 that mark will be a north and south line1 and you can mark the place where the shadow of the pin's head crosses that line1 when it crosses it every day at noon4 ,the children said that they believed they understood the directions1 and they determined to try the plan4 ,they thought they would fix two cards1 one at ,rollo's house1 and one at ,lucy's2 and they immediately went off in pursuit of blank cards and big pins4 ,,pruning4 ,one afternoon1 ,rollo saw his father coming out into the garden1 with a little saw and a knife1 and a small pot of paint in his hands4 ,father1 said he1 are you going to prune your trees now8 ,yes1 said his father4 ,then1 shall ,i go and get my wheelbarrow8 ,yes1 replied his father1 again4 ,so ,rollo ran off after his wheelbarrow4 ,it had been arranged1 between him and his father that morning1 that they should work in the garden an hour or two in the afternoon1 and that ,rollo should pick up all the cuttings from the trees1 and wheel them away1 and then1 when they were dry1 make a bonfire with them4 ,rollo found his wheelbarrow in its proper place1 and trundled it along into the garden4 ,father1 said he1 what trees are you going to prune first8 ,o1 ,i am going to begin at the back side of the garden1 and prune them all1 advancing regularly to the front4 ,what is the saw for8 said ,rollo4 ,to saw off the large branches1 that ,i can't cut off easily with a knife4 ,but ,i should not think you would want to saw off any large branches1 for so you will lose all the apples that would grow on them next year4 ,why1 sometimes1 the branches are dead1 and then they would do no good1 but only be in the way4 ,but do they do any hurt8 said ,rollo4 ,why1 they look badly4 ,but1 ,i mean1 would they do any actual hurt to the tree8 ,why1 ,i don't know1 said his father2 perhaps they would not4 ,at any rate1 if ,i cut them off pretty close to the living part of the tree1 the bark will then gradually extend out over the little stump that ,i leave1 and finally cover it over1 and take it all in1 as it were4 ,by this time1 ,rollo and his father had reached the back side of the garden1 and his father showed him the place where he had cut off a limb the year before1 and he saw how the fresh young bark had protruded itself all around it1 and was spreading in towards the centre so as to cover it over4 ,rollo then saw that it was better that all old dead limbs should be cut off4 ,that's curious1 said ,rollo4 ,yes1 very curious1 said his father4 ,a tree will take in1 and cover up1 almost any thing that is fastened to the wood1 in the same manner4 ,will it8 said ,rollo4 ,yes1 said his father4 ,if you drive a nail into a tree1 the bark will1 after a time1 cover it over entirely4 ,sometimes people find things in old trees1 which were put upon them when they were young4 ,how big things8 said ,rollo4 ,o1 ,i don't know exactly how big4 ,the tree will make an effort to enclose any thing small or large4 ,only1 if it is very large1 it will take a great while to enclose it1 and it might be so large that it never could enclose it4 ,well1 father1 how large must it be so that the tree never could enclose it8 ,o1 ,i don't know1 exactly4 ,once ,i saw a tree that was growing very near a rock4 ,after a time it came in contact with it1 and it grew and pressed against it1 until the rock crowded into the wood4 ,then the bark began to protrude in every direction along the rock1 as if it was making an effort to spread out and take the rock all in4 ,but ,i don't think it will ever succeed2 for the rock was part of a ledge in a pretty large hill4 ,what a silly tree6 said ,rollo4 ,father1 ,i believe ,i will try the experiment some time1 continued ,rollo1 after a pause4 ,very well1 said his father4 ,what shall ,i put into the tree8 asked ,rollo4 ,you might put in a cent1 said his father1 and then1 if it should get fairly enclosed1 ,i presume the tree will keep it safe for you a good many years4 ,rollo determined to do it4 ,then1 said he1 ,i shall never be out of money1 and that will be excellent4 ,his father told him that he must make a small cleft in the bark and wood1 with a chisel and mallet1 and then drive the cent in1 edgewise1 a little way4 ,so ,rollo got his chisel and mallet1 and inserted the cent according to his father's directions1 and by that time there were a good many branches and twigs on the ground1 which his father had taken off from the trees1 and so he began to pick them up1 and put them into his wheelbarrow4 ,they went on working together for some time1 and talking while they worked4 ,rollo was continually asking his father questions1 and his father sometimes answered them1 and sometimes did not1 but was silent and thoughtful1 as if he was thinking of something else4 ,but whether he got answers or not1 ,rollo went on talking4 ,illustration ,father1 said ,rollo1 at length1 after a short pause1 during which he had been busily at work putting twigs into his wheelbarrow1 ,henry has got a very interesting book4 ,his father did not answer4 ,i think it is a very interesting book indeed4 ,should not you like to read it1 father8 ,his father was just then reaching up very high to saw off a pretty large limb1 and he paid no attention to what ,rollo was saying4 ,so ,rollo went on talking half to himself-- ,one story is about ,aladdin and his lamp4 ,if he rubbed his lamp1 he could have whatever he wished2 something would come1 ,i have forgotten what its name was1 and bring him whatever he asked for4 ,just then1 down came the great branch which his father had been sawing off1 falling from its place on the tree to the ground4 ,rollo looked at it a moment1 and then1 when his father began sawing again1 he said1 ,should not you like such a lamp1 father8 ,such a lamp as what1 my son8 said his father4 ,why1 such a one as ,aladdin's4 ,aladdin's6 why1 what do you know of ,aladdin's lamp8 ,why1 ,i read about it in ,henry's story book1 said ,rollo4 ,i just told you1 father4 ,did you8 said his father4 ,won't you just hand me up the paint brush8 ,well1 father1 said ,rollo1 as he handed him the brush1 don't you wish you had an ,aladdin's lamp8 ,no1 not particularly1 said his father4 ,o father6 exclaimed ,rollo1 with surprise1 ,i am sure ,i do4 ,don't you wish ,i had such a lamp1 father8 ,no1 said his father4 ,why1 father1 ,i really think ,i could do some good with it4 ,for instance1 ,i could just rub my lamp1 and then have all your trees pruned for you1 at once1 without any further trouble4 ,but that would not be worth while2 for you might have a much larger and better garden than this made at once1 with thousands of trees1 bearing delicious fruit2 and ponds1 and waterfalls1 and beautiful groves4 ,o1 so ,i could1 said ,rollo4 ,and1 then1 how soon do you think you should get tired of it1 and want another8 ,o1 perhaps1 ,i should want another pretty soon2 but then ,i could have another1 you know4 ,yes1 and how long do you think you could find happiness1 in calling beautiful gardens into existence1 one after another8 ,o1 ,i don't know2--a good while4 ,a day8 ,o1 yes1 father4 ,a week8 ,why1 perhaps1 ,i should be tired in a week4 ,then all your power of receiving enjoyment from gardens would be run out and exhausted in a week2 whereas mine1 without any ,aladdin's lamp1 lasts me year after year1 pleasantly increasing all the time without ever reaching satiety4 ,what is satiety1 father8 ,the feeling we experience when we have had so much of a good thing that we are completely tired and sick of it4 ,if ,i should give a little child as much honey as he could eat1 or let him play all the time1 or buy him a vast collection of pictures1 he would soon get tired of these things4 ,o father1 ,i never should get tired of looking at pictures4 ,i think you would1 said his father4 ,here the conversation stopped a few minutes1 while ,rollo went to wheel away a load of his sticks4 ,before he returned1 he had prepared himself to renew his argument4 ,he said1 ,father1 even if ,i did get tired of making beautiful gardens1 ,i could then do something else with the lamp1 and that would give me new pleasure4 ,yes1 but the new pleasure would be run out and exhausted just as soon as the pleasure of having a garden would have been2 so that you would1 in a short time1 be satiated with every thing1 and become completely wretched and miserable4 ,but1 father1 said ,rollo1 after being silent a little while1 ,i don't think ,i should get tired of my beautiful gardens very soon3 ,i don't think ,i should get tired even of looking at pictures of them4 ,should you like to try the experiment8 ,yes1 sir1 said ,rollo1 very eagerly4 ,rollo's father had a great many books of pictures and engravings of various kinds in his library2 and sometimes he used to allow the children to see them1 but only a very few at a time4 ,they had not yet seen them all4 ,he only allowed them to see them as fast as they had time to examine them thoroughly1 and read about them and understand them4 ,but now he said to ,rollo1 ,i could let you have all the books of prints and engravings ,i have got1 and see them all at one time1 and that would be giving you ,aladdin's lamp1 exactly1 so far as my pictures are concerned4 ,well1 said ,rollo1 clapping his hands4 ,but then1 in a short time1 you would get tired of looking at them2 you would become satiated1 and would in fact spoil the whole pleasure by attempting to enjoy it too fast4 ,but then ,i think it would perhaps do you good4 ,how1 father8 ,why1 by teaching you the value of moderation1 and the uselessness of ,aladdin's lamps in all human enjoyments4 ,it would be a very valuable experiment in intellectual philosophy1 which ,i think it very probable might be of use to you4 ,so1 if you please1 you may try it4 ,well1 father1 ,i am sure ,i should like to see the pictures4 ,that is all settled then1 said his father2 some day you shall4 ,,the ,,great ,,beetle ,,and ,,wedge4 ,rollo was coming home one morning after having been away on an errand1 and he saw a large wood pile near ,farmer ,cropwell's door4 ,now it happened that ,rollo had once been on a journey pretty far back into the country2 it was at the time when ,jonas told him and ,lucy the stories related in the book called ,jonas's ,stories4 ,on that journey1 ,jonas had one day told him that the sap of the maple-tree was sweet1 and had let him taste of some1 where it oozed out at the end of the log4 ,seeing ,farmer ,cropwell's wood pile reminded ,rollo of this2 and he thought he would look at the ends of all the logs1 and see if he could not find some drops of sweet sap there4 ,but he could not1 for two reasons3 none of those trees were maple-trees1 and then1 besides1 they were all dry4 ,there was no sap in them of any kind2 at least1 not enough to ooze out4 ,while ,rollo was looking there1 one of ,farmer ,cropwell's large boys came out with an axe in his hand4 ,he rolled out a pretty large log of wood1 though it was not very long1 and struck his axe into the end of it1 as if he was going to split it4 ,i don't believe you can split that great log1 said ,rollo4 ,i don't expect to do it with the axe1 said the boy1 as he left the axe sticking in the log4 ,how then8 said ,rollo4 ,i have got beetle and wedges here1 round behind the wood pile4 ,so the boy went to another side of the wood pile1 and brought a large beetle and an iron wedge4 ,when he got back to his log1 he started out the axe which he had left sticking into it4 ,then ,rollo saw that the axe had made a little indentation1 or cleft1 in the wood4 ,he put the point of the wedge into this cleft1 and drove it in a very little1 with a few light blows with the axe4 ,then he took the great heavy beetle1 and began driving the wedge in1 with very heavy blows4 ,presently1 ,rollo saw a little crack beginning to extend out each side from the wedge4 ,the crack ran along across the end of the log1 and thence down the side1 and grew wider and wider every moment4 ,at last1 the wedge was driven in as far as it would go1 and still the log was not split open4 ,now stop1 said ,rollo2 ,i will put a stick in1 and keep the crack open1 while you drive the wedge in1 in another place4 ,o1 that won't do1 said the boy2 a stick would not keep it open4 ,why not8 said ,rollo4 ,because it is not solid enough2 the sides of the cleft draw together very hard4 ,they would crush the stick4 ,here ,rollo put his hand into his pocket1 and drew out a walnut1 and he asked the boy if it would crack a walnut4 ,try it1 said the boy4 ,so ,rollo put the walnut into the crack4 ,he slipped it along until he got it to a place where the crack was just wide enough to receive it1 and hold it steady4 ,he left it there1 and then the boy began to knock out the wedge4 ,he struck it first upon one side1 and then upon the other1 and thus gradually worked it out4 ,the walnut was crushed all to pieces4 ,the boy then drove in the wedge again1 so as to open the log as it was before4 ,he then went to the place where he had got the beetle and wedge at first1 and brought a large wooden wedge which he had made before1 and began to put that into the crack1 not very far from the iron wedge4 ,this will keep it open1 said he4 ,yes1 ,i think it will1 said ,rollo4 ,but put it up close to the iron wedge4 ,no1 said the boy2 for then ,i can't knock the iron wedge out4 ,so the boy put the large wooden wedge in1 at a little distance from the iron one1 and drove it in rather gently with the beetle4 ,this opened the cleft a little more1 so that the iron wedge came out pretty easily4 ,i don't see what makes the sides of the logs draw together so hard1 said ,rollo4 ,o1 they can't help it1 said the boy4 ,that is no reason1 rejoined ,rollo4 ,i should think that1 after the log is once split open1 it would stay so4 ,if ,i split a piece of wood in two with my knife1 the pieces don't try to come together again4 ,so ,rollo began to examine the log1 and to look into the cracks1 to see if he could find out what it was that made the parts draw together so hard as to crush the walnut4 ,presently1 he observed that the log was not split open from end to end4 ,the crack commenced at one end1 and extended nearly towards the other1 but not quite2 so that at this other end the log was solid and whole1 just as it always had been4 ,so ,rollo perceived that the two halves being joined and held together firmly here1 they could only be separated at the other end by the wedge springing them open1 and1 of course1 by their elasticity they tended to spring together again4 ,then besides1 he saw1 by looking into the crack1 a great number of splinters1 large and small1 which extended obliquely from one side to the other1 and bound the two sides strongly towards each other4 ,by this time the boy had got the wedge knocked out4 ,it is strange1 said ,rollo1 that such a small wedge will split such a tough and solid log4 ,o1 not very strange1 said the boy4 ,you see1 he continued1 taking up the wedge1 and pointing to the several parts as he explained them1 you see here at this part1 where it enters the wood it is sharp1 and the sides spread out each way1 so that1 when ,i drive it in1 they force the wood apart4 ,why don't they have the back of the wedge wider still8 and then it would force the wood open farther2 and then you would not have to put in a wooden wedge afterwards1--so1 he added1 making a sign with his fingers4 ,he put the tips of his fingers together1 and then separated his hands1 so as to represent a very blunt-shaped wedge4 ,then it would not drive in so easily1 answered the boy4 ,perhaps ,i could not drive it in at all1 if it was so blunt4 ,they might have the wedge longer then1 said ,rollo1 and then it would be just as tapering1 and yet it would be a great deal broader at the back1 because the back would be farther off4 ,that would make the wedge a great deal too heavy4 ,it would not drive4 ,why1 yes1 it would1 said ,rollo4 ,no1 it would not1 said the boy4 ,it would be just like a shoemaker's lap-stone2 pounding it would hardly move it4 ,rollo did not understand what the boy meant by what he said about the shoemaker's lap-stone2 so he paused a moment1 and presently he said1 ,i don't think it would make any difference1 if it was heavy4 ,and1 besides1 it might be made of wood1 and that wouldn't be heavy4 ,o1 wood wouldn't do1 said the boy4 ,now it happened that while they had been talking1 the boy had gone on driving in his wooden wedge into the cleft that the iron one had made1 and it had been gradually splitting the log open more and more4 ,so that just as the boy was saying that a wooden wedge wouldn't do1 ,rollo was actually seeing with his own eyes that it would do2 for at that moment the boy gave the last blow1 and the halves of the log came apart and fell over1 one to one side1 and the other to the other4 ,why1 there1 said ,rollo1 you have split the log open with a wooden wedge4 ,o1 that is because ,i had an iron one in first1 said the boy4 ,what difference does that make8 said ,rollo4 ,a great deal of difference1 said the boy4 ,but what difference8 persisted ,rollo4 ,i don't know exactly what difference1 said the boy2 only ,i know you can't do any thing with a wooden wedge until you have first opened a seam with an iron one4 ,rollo was confident that it could not possibly make any difference whether a wooden wedge was used first or last4 ,the boy was sure that it did1 though he could not tell why4 ,finally1 they determined to try it2 so the boy struck his axe into the end of the next log1 and then attempted to drive in his wooden wedge4 ,but he did not succeed at all4 ,the wedge would not stay4 ,rollo told him that he did not strike hard enough4 ,then he struck harder1 but it did no good4 ,the wedge dropped out the moment he let go of it1 and on taking it up1 they found that the edge of it was bruised and battered2 so that even ,rollo gave up all hopes of making it enter4 ,ah6 said the boy1 taking up the wedge1 and looking at it1 now ,i know what the reason is4 ,it is the edge4 ,where8 said ,rollo4 ,let me see4 ,why1 when there is no crack1 said the boy1 you see the edge of the wedge comes against the solid wood1 and when ,i drive1 it only bruises and batters it2 but the iron is hard1 and goes in4 ,but then1 when a crack is made1 the wedge can go in easily2 for the edge does not touch2 then only the sides rub against the wood4 ,how8 said ,rollo4 ,i don't understand4 ,i'll show you in a minute1 said the boy4 ,so he took the iron wedge1 and went to work driving it into the log4 ,it soon began to make a crack1 which ran along the log1 and opened wider and wider4 ,when1 at length1 it was pretty wide1 he put the wooden wedge in1 and he showed ,rollo that the edge of the wedge did not now have to force its way1 but went easily into the crack1 and only the sides came in contact with the two parts of the log which it was separating4 ,that's curious1 said ,rollo4 ,yes1 said the boy4 ,i wish ,i had a little beetle and wedge1 said ,rollo4 ,i have got a hammer4 ,that would do for a beetle1 if ,i only had a wedge4 ,o1 a hammer won't do1 said the boy4 ,why not8 ,would not an axe do as well as a beetle8 ,no1 said the boy1 it would spoil the axe and the wedge too4 ,how8 asked ,rollo4 ,why1 it would bruise it all up1--hard iron knocking against the hard iron4 ,would it8 said ,rollo4 ,yes1 replied the farmer's boy2 it would spoil the head of the axe1 and the head of the wedge too4 ,is that the reason why they make a wooden beetle8 ,yes1 said the boy2 and they put iron rings around the ends to keep the wood from being bruised and battered4 ,o1 ,i wish ,i had a little beetle and wedge6 said ,rollo4 ,perhaps you might make one4 ,o1 ,i could not make an iron wedge--nor the beetle rings4 ,no1 but you might make wedges of wood1--pretty hard wood2 that would do to split up pieces of pine boards1 and then you would not need any rings to your beetle4 ,jonas can help me1 said ,rollo4 ,yes1 said the boy2 ,jonas will know all about it4 ,so ,rollo set out to go home1 full of the idea of making a wooden beetle and wedge1 so as to split up pieces of boards4 ,he determined1 in case he should succeed1 to make a smaller one still for ,thanny4 ,,the ,,little ,,beetle ,,and ,,wedge4 ,when ,rollo got home1 he looked about for ,jonas every where1 but could not find him4 ,he went around the house and yard1 calling ,jonas6 ,jonas6 very loud4 ,presently ,nathan came out to the door1 and told him that his mother wanted to see him4 ,so ,rollo went in to his mother4 ,you ought not to make such a noise1 said she1 calling ,jonas4 ,you disturb us all4 ,but1 mother1 said he1 ,i want to find him very much4 ,no doubt1 said his mother2 but you must find him with your eyes1 not with your tongue4 ,why1 mother1 said ,rollo1 laughing1 what do you mean by that8 ,boys very generally have a habit of trying to find people with their tongues1 that is1 by calling them2 but it is a very bad habit4 ,you see1 she continued1 there are five or six persons now in and about the house1 and if you go around calling out for ,jonas1 you disturb us all2 but if you go about quietly1 and look for him1 you do not disturb any body4 ,but then it is not so easy to find him by looking for him1 said ,rollo4 ,why not8 asked his mother4 ,because1 said ,rollo1 ,i can call out for him1 in a moment1 in the yard1 and then if he is any where within hearing1 he answers2 and so ,i know where he is4 ,but it would take me some time to go to all the places that are within hearing4 ,true1 said his mother1 ,i see it is more trouble to find any body with your eyes1 than with your voice2 but then it is so much pleasanter for all the rest of us1 that you must submit to it4 ,so ,rollo went away again to look for ,jonas4 ,he inquired of ,dorothy in the kitchen1 and she told him that she saw ,jonas going out towards the barn a few minutes before4 ,so ,rollo went off in pursuit of him4 ,he found him at work in a little back room in the barn1 looking over some harnesses4 ,what are you doing1 ,jonas8 said ,rollo4 ,i am overhauling these harnesses1 to get them all ready for winter4 ,for winter8 said ,rollo4 ,yes1 replied ,jonas2 they are sleigh-harnesses4 ,well1 ,jonas1 said ,rollo1 ,i wanted to see you about a beetle and wedge4 ,do you think you could help me about making a little beetle and wedge8 ,i can help you by my advice1 said ,jonas4 ,o1 but ,i want you to help me make them4 ,then ,jonas asked ,rollo what made him think of a beetle and wedge2 and ,rollo told him of the conversation he had held with the farmer's boy4 ,then ,jonas talked a long time about it1 giving him particular advice and direction about the plan1 though he said he could not himself go and help him then1 for he could not leave his harnesses4 ,the advice which ,jonas gave him was1 substantially1 this3-- ,the boy was right in what he said about the necessity of having iron wedges1 to split up large logs of hard wood2 but you had better have short pieces of pine boards for your logs1 and then wedges of hard wood will do instead of iron2 for hard wood is so much more solid than pine1 that ,i think wedges of it will answer very well4 ,there are some pieces of walnut under the bench1 which will do finely1 and ,i will give you one of them4 ,i'll go1 now1 and get it1 said ,rollo4 ,no1 said ,jonas1 not yet2 let me tell you about making the beetle4 ,so ,rollo stood in the door way1 waiting to hear what ,jonas had to say about the beetle1 but evidently quite impatient to go4 ,if you make your wedges of hard wood1 it will not be necessary to have iron rings to your beetle1 because it will not get battered much1 in driving wooden wedges4 ,now you must go to the wood pile1 and look out a piece of round wood1 about as large round as my arm1 and bore a hole in it4 ,a hole in it6 said ,rollo4 ,yes1 a small auger hole1 to put the handle into4 ,then you must put the wood into the saw-horse1 and saw off the ends1 at a little distance from the hole1 so that1 when the handle is put in1 it will be like a mallet4 ,a mallet6 said ,rollo4 ,but ,i wanted a beetle4 ,well1 a mallet is a small beetle1 without rings4 ,is it8 said ,rollo1 thoughtfully4 ,yes1 replied ,jonas2 and if you work slowly and carefully1 ,i think you can make a pretty good one yourself4 ,rollo thought so too1 and away he ran to make the experiment4 ,under the great work bench1 he found1 among a quantity of boards and bits of wood1 a number of long bars of walnut1 which ,jonas had split out from the wood pile to keep for handles4 ,he took one of these1 and carried it off to the shed1 to look for the saw and the hatchet4 ,the first thing was1 as he supposed1 to saw off a piece of the wood just long enough for a wedge4 ,but in this he was mistaken4 ,in doing any piece of work of this kind1 it is always very important to consider which part it is best to do first4 ,rollo did not think of this1 and so he marked off a piece of the walnut wood about long enough for a wedge1 and then sawed it off4 ,now1 said he1 ,i must make the sides smooth1 and sharpen it4 ,so he took the piece of wood in his hand1 and put one end of it down upon a large log of wood1 and then attempted to smooth and sharpen it1 as he had seen ,jonas sharpen a stake4 ,but he could not succeed very well4 ,the wood was very hard1 and he could not cut it4 ,then it was so short that it was almost impossible to hold it4 ,at almost every blow of the hatchet it slipped out of his hand2 and then1 besides1 he was very much afraid of cutting his fingers2 so that1 after working laboriously for some time1 he came back to ,jonas in despair1 holding his wedge in his hands1 which1 however1 instead of being properly sharpened1 was only rounded off a little at the corners4 ,o dear me6 said he to ,jonas1 as he came up to him with the intended wedge in his hands1 ,i can't make a wedge at all4 ,it's no use to try4 ,then he explained to ,jonas the difficulties that he had met with4 ,true1 said ,jonas2 ,i see4 ,i advise you to give it up4 ,yes1 said ,rollo1 the wood is so hard4 ,o1 no1 said ,jonas2 that is no great trouble--you could easily manage that4 ,but then ,i can't hold it4 ,that is of no consequence either4 ,i could tell you a way to hold it well enough4 ,what is the reason1 then1 why you think ,i had better give up8 ,because you have not patience enough4 ,rollo stood silent and thoughtful as ,jonas said this1 with his piece of wood in one hand1 and his hatchet in the other4 ,it takes a great deal of patience to make a thing which we never made before4 ,why8 said ,rollo4 ,o1 because there are always unforeseen difficulties4 ,we don't know exactly how to do it1 and are apt to make mistakes2 and so we spoil some of our work1 and this makes us impatient and fretful4 ,but ,i could not help coming to you1 said ,rollo1 when ,i found ,i could not sharpen my wedge4 ,i did not blame you for coming to me1 said ,jonas4 ,but you said ,i was impatient4 ,yes1 but not for coming to me--,i judged by your looks and tone of voice4 ,now if you can keep good-natured and pleasant1 so as to go on steadily and patiently1 difficulties or no difficulties1 ,i will help you by my advice2 otherwise1 ,i think you had better give up the plan4 ,rollo stood a few minutes leaning on the door1 and swinging it back and forth a little4 ,he seemed to be in doubt whether to be good-natured or not4 ,at length1 the better feelings triumphed1 and he said1 ,well1 ,jonas ,i will try4 ,how can ,i hold my wedge while ,i sharpen it8 ,you must not saw it off until it is all sharpened and smoothed4 ,by that means1 you see1 the long end of the stick1 that you make it from1 will serve for a handle4 ,so it will1 said ,rollo2 ,i never thought of that4 ,so ,rollo went off in pursuit of the stick from which he had sawed off his first wedge1 intending to make another upon the end of it1 and then saw it off when it was all ready4 ,he found that now he could hold his wood very easily1 and there was no danger of cutting his fingers4 ,so he could strike much heavier blows4 ,he soon sharpened his wedge1 and then carried it to ,jonas to ask him if he thought it would do4 ,no1 said ,jonas1 ,i don't think it will do1 very well4 ,won't it8 asked ,rollo1 looking somewhat disappointed4 ,why1 you see the sides are not smooth2 and then you have not sharpened it uniformly4 ,you have cut away more at the corners than you have in the middle1 so that it is thicker in the middle4 ,that is the way that boys always sharpen wedges4 ,why do they8 asked ,rollo4 ,i suppose it is because it is easier to cut away at the edges1 and so they get more off there4 ,now you had better get your wedge as true1 and perfect1 and smooth as you can1 before you saw it off4 ,it will be a great deal pleasanter to work with a good wedge than with a poor one1 and so you had better take pains with it1 and make as perfect a one as you can1 if you make any4 ,but1 ,jonas1 said ,rollo1 ,i can smooth it and finish it1 after ,i get it sawed off4 ,not half as easily as you can now1 said ,jonas4 ,during all this time ,jonas kept on with his own work2 and now he said no more1 and seemed disposed to leave ,rollo to his own decision4 ,rollo walked slowly back to the shed4 ,he longed to have his wedge done2 but then ,jonas had often told him before1 that if he was attempting to make any thing1 it was best to take pains with it1 and make it as complete and perfect as possible1 and then he would prize it more1 and take more pleasure in it1 when it was done4 ,rollo knew that this was good advice1 though1 like almost all other boys1 he was always in such a hurry to finish any thing that he undertook1 and to have it ready for use1 that he did not like to take the necessary pains4 ,on reflection1 however1 he concluded to take ,jonas's advice2 and he accordingly began to smooth the sides of his wedge again with the hatchet4 ,he did it slowly and carefully2 and after some time he found that he had got the wedge into a much more perfect shape than before4 ,he then carried it to ,jonas again4 ,now ,jonas approved it very much1 but told him that he had better smooth it a little more with his knife before sawing it off4 ,rollo did so2 and then he carried it back to the horse1 and sawed it off at the right distance1 and it made an excellent wedge4 ,the edges1 at the head of the wedge1 were left somewhat rough by the saw4 ,these1 however1 he trimmed off with his knife1 and then carried the wedge to ,jonas4 ,very well1 said ,jonas2 now you want one more4 ,one more8 said ,rollo4 ,no1 ,i want my beetle next4 ,no1 said ,jonas1 one more wedge4 ,make all your wedges first4 ,why1 ,jonas1 you see1 if ,i make my beetle next1 ,i can try it with this wedge1 and then ,i can make another1 if ,i want it1 afterwards4 ,no1 replied ,jonas1 that is not a good way4 ,you ought to finish up your apparatus all complete1 before you try it at all4 ,then you will take a great deal more pleasure in trying it4 ,besides1 if you get to work splitting up your wood1 you will not want to leave it1 and go to making a new wedge then4 ,now is the time to do it4 ,rollo felt very desirous to make his beetle first1 so as just to try it a little1 as he said4 ,still1 he had so often found1 when he had not followed ,jonas's advice1 that he was sorry for it afterwards1 that he concluded to make another wedge now4 ,he accordingly went to work again1 and having learned how to do it by his practice upon the first one1 he succeeded very easily1 and finished it much quicker than he did before4 ,then he went to work upon his beetle4 ,he selected a round stick of wood1 of about the right size1 and then examined it carefully to find the part which was most uniform and regular in its shape2 and he bored a hole for the handle in the middle of this part4 ,he made his handle of pine wood1 for this was much easier to cut1 and ,jonas told him he thought it would do nearly as well4 ,when the handle was finished1 he drove it into the hole1 and then he sawed off the ends of the stick of wood at the right distances from the hole4 ,he first took pains to measure on each side1 so as to have the distances exactly the same4 ,when this was done1 he had quite a pretty little mallet4 ,that is1 it was made very much like a carpenter's mallet2 still1 as a mallet is made chiefly for the purpose of driving a chisel1 and this was1 on the other hand1 only intended to be used for splitting wood with a wedge1 ,jonas told him he thought it would be strictly proper to call it a little beetle4 ,he worked so slowly and carefully1 however1 in doing all this1 that the afternoon had entirely passed away when he got the beetle and the wedges done2 and just when he was thinking that he was ready to try them1 he saw ,dorothy at the kitchen door1 ringing the bell to call him in to tea4 ,,splitting4 ,when play time came the next day1 ,rollo ran after ,nathan to show him his beetle and wedges1 and to get him to go out and see him 'split' with them4 ,nathan trotted along after him1 very much pleased4 ,rollo had his beetle in one hand1 and his two wedges in the other1 and1 as he walked along1 he looked over his shoulder towards ,nathan1 who was following him1 and talked to him by the way1 explaining to him something about his beetle and wedges4 ,you see ,i am going to split1 ,thanny4 ,i am going to split some kindling wood for ,dorothy4 ,i shall put my wedges into the wood1 and then drive them in with my beetle1 and that will make the wood split open more and more2 and perhaps ,i will let you split a little1 ,thanny4 ,by this time ,rollo had got out to the shed1 and he put his beetle and wedges down upon the floor1 while he went away to get some boards to split4 ,there were some old boards behind the barn1 which ,jonas told him were to be split up to burn1 and from these he chose one1 which was not very long1 and dragged it to the shed4 ,he placed this upon the saw-horse1 and then sawed off a piece from one end1 about as long as he thought it would be well to have the sticks of kindling wood4 ,after he had sawed off one piece1 he was going to split it up1 but then he reflected that it would be more systematic and workmanlike to finish his sawing first4 ,so he sawed off another1 and another piece1 until the board was all sawed up into short pieces4 ,he placed these together neatly in a pile1 and then taking one of them1 he sat down upon the floor1 with ,thanny1 and prepared to try his beetle and wedges4 ,now1 said ,rollo1 ,i think ,i must have a knife1--some old knife or other1--to make a little place to drive my wedge in4 ,thanny1 why can't you go and ask ,dorothy to let me have a knife8 ,come1 that's a good boy4 ,so ,nathan got up off of the floor1 where he had been sitting by ,rollo's side1 and went in for a knife4 ,in a few minutes he came out1 and asked ,rollo if a broken one would do4 ,he had brought out a broken knife4 ,the handle was whole and strong1 but the blade was broken in two1 about in the middle4 ,why1 yes1 said ,rollo1 taking the knife and looking at it1 ,i believe that will do4 ,yes1 he continued1 ,i shall like this better1 for ,i can keep this all the time1 with my wedges4 ,and besides1 ,i believe that ,i can drive it better4 ,so ,rollo held the edge of the knife to the end of the board1 and then drove it in a little way1 with his little beetle4 ,this made a small opening or cleft in the angle or edge of the board at one end4 ,then he began to drive in his wooden wedge1 telling ,nathan to look carefully and see when it began to split4 ,nathan stood near him1 stooping down1 with his hands upon his knees1 and looking on with great attention4 ,illustration ,rollo drove in his wedge1 and it proceeded admirably4 ,the wood soon began to crack1 and the crack gradually extended almost to the end of the board4 ,when he had driven it in pretty far1 he told ,nathan to see how he was going to manage with his second wedge4 ,he was now very glad that he had followed ,jonas's advice1 and made the second wedge before trying the first4 ,he inserted the second wedge in the crack1 and drove it in4 ,this forced the wood open more1 and loosened the first wedge1 so that he could easily get it out again1 and very soon the board was split entirely in two4 ,nathan was very much delighted with the whole operation4 ,in the same manner1 ,rollo split two or three other pieces off from his board1 and then ,nathan wanted him to let him split one4 ,rollo was at first somewhat unwilling to let his little beetle go out of his hand at all1 he was so interested in using it2 but considering that it would give ,nathan a good deal of pleasure1 he concluded to let him try it once4 ,i will start it for you1 ,thanny1 said he4 ,and he accordingly made a small cleft by driving in his knife2 and then he inserted the wedge1 and drove that in too1 just far enough to start the crack1 and enable the wood to retain the wedge4 ,nathan then took the beetle1 and pounded away4 ,he found that he could not strike such heavy blows as ,rollo could1 and yet the wedge gradually penetrated farther and farther1 and the crack opened wider and wider1 to ,nathan's great delight4 ,rollo was himself gratified to see how much his little brother was pleased with his beetle and wedges4 ,when the first wedge was driven fully in1 he handed him the other1 and showed him how to insert that into the crack made by the first wedge1 at a little distance from it4 ,nathan then drove in the second wedge1 and this soon finished the work1 for it split the piece off entirely1 and ,nathan took it up1 and looked at it1 very much pleased at what he had done4 ,now1 said ,rollo1 give me the beetle again4 ,no1 said ,nathan1 ,i want to split some more4 ,o1 no1 said ,rollo1 in a tone of good-humored expostulation2 no2 it is my beetle and wedge4 ,i let you have it to split one stick off2 but now you ought to let me have it again1 immediately4 ,no1 said ,nathan1 ,i want to split some more4 ,rollo took up the two wedges1 and would not let ,nathan have them1 and ,nathan held the beetle away behind him so that ,rollo should not have that4 ,thus they seemed to be in inextricable difficulty4 ,rollo did not know what to do4 ,nathan1 said he1 at length1 after a pause1 give me my beetle4 ,no1 said ,nathan1 ,i want to split4 ,o1 dear me6 said ,rollo1 with a sigh4 ,at first1 he thought that he would take the beetle away from ,nathan by force2 but he reflected in a moment that this would be wrong1 and so finally he concluded to go and state the case to his mother4 ,so he rose1 and began to walk away1 saying1 ,well1 ,nathan1 ,i mean to go and tell mother1 that you won't let me have my beetle4 ,then ,nathan1 whose conscience secretly reproved him for what he was doing1 pulled the beetle round from behind him1 and threw it down upon the floor1 where ,rollo had been sitting4 ,this was wrong4 ,it was a very ill-natured way of giving it up4 ,if he was satisfied that he was wrong1 he ought to have handed it to ,rollo pleasantly4 ,instead of that1 he threw it down1 with a sullen look1 and sat still4 ,then ,rollo1 thinking that it was now no longer necessary to go and trouble his mother with the difficulty1 began to return4 ,as he came back1 he said1 in a kind and soothing tone1 ,now1 you are a good boy1 ,nathan4 ,that is right--to give me back my beetle4 ,now ,i will let you split again1 some time4 ,but ,rollo was mistaken in supposing that ,nathan was a good boy4 ,boys are not good until their hearts are right4 ,when a child has something which he ought not to have1 it is not enough for him to throw it down upon the floor1 sullenly1 because he is afraid to have his father or mother told that he has got it4 ,he ought to give it up pleasantly1 and feel that it is right that he should do so4 ,if ,nathan had said to himself1 ,i ought not to keep this beetle1 for it is not mine--it is ,rollo's2 he made it1 and he has been kind enough to lend it to me1 and now ,i ought to be willing to give it back to him pleasantly again2 and then had given it to him with a pleasant countenance1--that would have been really being a good boy4 ,but to throw it down in a pet1 because he was afraid to have ,rollo complain to his mother1 was very far from being like a good boy4 ,however1 it was very kind in ,rollo to speak soothingly and pleasantly to ,nathan2 though1 if he had reflected how much goodness depends upon the state of the heart1 he would not have supposed that ,nathan was yet a good boy4 ,in fact1 when he saw that ,rollo was coming back again1 and was not going to his mother1 after standing still1 looking quite sullen for a moment1 he suddenly stooped down1 seized ,rollo's knife1 and ran off with it out into the yard4 ,rollo instantly pursued him1 calling out1 ,nathan6 bring back my knife2 ,nathan6 ,nathan6 give me my knife4 ,nathan1 however1 ran on1 though ,rollo ran the fastest1 and was rapidly overtaking him2 and just at the instant before he reached him1 ,nathan's foot tripped2 he fell1 and as he threw forward his hands to try to save himself1 they came down upon the ground1 and his forehead struck the corner of the knife blade4 ,he immediately screamed out with pain and terror4 ,dorothy1 alarmed by his cries1 came out1 took him up in her arms1 and carried him into the house4 ,she took him to the table1 and began to bathe the wounded forehead in cold water4 ,this was what she always did when the children got cut or scratched1 or hurt in any such way4 ,it prevents inflammation4 ,she saw that ,nathan was not hurt much1 though he continued to cry very loud4 ,his crying was1 however1 partly from pain1 and partly from vexation4 ,in a few minutes1 ,rollo's mother came down stairs to see what was the matter4 ,rollo thought that his mother might suppose that he had hurt ,nathan1 and so he began to explain at once how it happened4 ,but his mother held up her hand to him1 as a signal for him to be silent4 ,she knew that it was then no time to ascertain the facts4 ,she came up and looked at ,nathan's forehead a moment1 and she saw that it was not much hurt4 ,besides1 she knew1 by the sound of ,nathan's cries1 that they did not proceed from much pain4 ,she therefore said to him1 gently1 ,stop crying1 ,nathan6 ,now ,nathan knew that his mother did not tell him not to cry1 except when she was sure that he could control himself if he chose to do so2 and he also knew that she punished him if he did not obey4 ,so he began immediately to repress his sobs and cries1 and very soon became still4 ,she then put a small plaster1 of some sort1 upon his forehead1 and then carried him up stairs and laid him on the bed4 ,there1 said she1 ,thanny1 lie still there a little while1 till your forehead has done aching1 and you get pleasant again2 then you may get up1 and come to me4 ,then she went to her work again1 and ,rollo came and stood by her side1 and told her the whole story4 ,nathan did wrong1 said she2 but it would have been better for you not to have run after him4 ,why1 mother1 said ,rollo1 he was running away with my knife2 and ,i can't split at all without my knife4 ,one thing ,i know1--,i shall not let him split any more with my beetle and wedges4 ,that would be one way to treat him1 said his mother2 but there is another thing you might do1 if you chose4 ,what1 mother8 asked ,rollo4 ,why1 make him a beetle and wedge1 for his own4 ,why1 mother6 said ,rollo1 with surprise4 ,yes1 said she4 ,you might make him one4 ,think how pleased he would be with it4 ,then he could sit down with you1 and you could both be splitting together4 ,but1 seems to me1 mother1 that that would be rewarding him for being a naughty boy4 ,it would be so1 if you were to make him a beetle and wedge1 because he was a bad boy2 but ,i proposed that you should make it for another reason1 that is1 to please him4 ,but perhaps he would think ,i did it because he ran away with my knife1 said ,rollo4 ,i don't think there is any danger that he would imagine that you did it as a reward for that1 replied his mother4 ,here ,rollo paused a moment4 ,he did not feel quite ready to undertake to make ,nathan a beetle and wedges2 but he did not know exactly how to reply to his mother's reasoning4 ,at length he said1 in a timid and hesitating voice1 ,but1 mother1 it seems to me that it would be better to punish ,nathan1 rather than reward him1 or do any thing which would seem like rewarding him for acting so4 ,that may be true1 said his mother4 ,and it is true1 also1 that if you should refuse to let him split wood any more with your wedges1 it would be punishing him2 while1 on the other hand1 if you should make him a little beetle and wedge of his own1 it would be forgiving him4 ,now ,i do not say that he ought not to be punished2 but which do you think is your duty towards him1--you1 yourself1 being only another child1 a few years older than he1--to punish or to forgive8 ,why1--to forgive1--,i suppose1 said ,rollo1 rather doubtfully4 ,i am rather inclined to that opinion1 myself1 said his mother3 but you can do just as you please4 ,rollo remained some minutes about his mother's chair1 not knowing exactly what to do or say next4 ,he sat down upon the floor1 and began to play with some shreds of cloth which were lying there4 ,presently1 he looked up and said1 ,mother1 what was the reason why you would not let me tell you what was the matter with ,nathan in the kitchen8 ,because1 said she1 he was crying then1 and it is no time to learn how an injury happened1 during the excitement of the moment4 ,if you find ,nathan crying out in the yard1 for instance1 and try to get him to tell you how he got hurt1 you only make him cry the more4 ,get him quiet first1 and then learn the story afterwards4 ,then1 besides the difficulty of his speaking intelligibly1 she continued1 at such a time1 boys are very strongly tempted to misrepresent the facts1 during the excitement of the first moments4 ,they are very likely to be a little vexed or angry1 and1 under the influence of those feelings1 not to give a correct and honest account4 ,so that it is always best to put off inquiries till the trouble is all over4 ,here ,nathan came into the room4 ,his forehead had ceased to give him pain1 and so he had clambered down from the bed where his mother had placed him1 and now came into the room1 looking quiet and calm1 though still not very happy4 ,rollo went to him1 and said1 ,come1 ,nathan1 now we will go down stairs to play again4 ,and he began to lead him down stairs4 ,as they walked along1 ,rollo said1 ,i am going to make you a beetle and wedge for your own1 ,nathan1 and then you and ,i can split together3 only1 it is not a reward1 you must understand4 ,it was wrong for you to keep my beetle1 and run away with my knife1 and you are sorry you did so1 an't you1 ,nathan8 ,yes1 said ,nathan4 ,and you won't do so any more1 will you1 ,nathan8 ,no1 said ,nathan1 ,i won't do so any more4 ,whether ,nathan was really sorry for what he had done1 or whether he only said so because ,rollo was going to make him a beetle1 is very doubtful2 though it is not impossible that he was a little sorry4 ,rollo went down into the shed again with ,nathan2 and while he was at work making the new beetle and wedge1 he let ,nathan use his4 ,the first piece of board had been split up2 so he laid another one before ,nathan1 and gave him his beetle and wedges and knife1 and then went away out to the barn to get some more wood for wedges1 and an auger4 ,when he came back1 he found ,nathan standing at the shed door1 with the little beetle in his hand1 waiting for him4 ,as ,nathan saw ,rollo coming1 he called to him1 saying1 ,come1 ,rollo1 come and help me2 the board won't split4 ,what is the matter with it8 said ,rollo4 ,i don't know1 said ,nathan1 only it won't split4 ,so ,rollo went in to see4 ,he found that ,nathan had gone to work wrong4 ,instead of trying to drive the wedge into the end of the board1 so as to split it along the grain1 he had made the cleft with the knife in the side of the board1 and was attempting to drive it in there1 as if he supposed he could split the board across the grain4 ,why1 ,nathan1 said ,rollo1 that isn't right4 ,you can't split it across4 ,then he put the wedge into the end1 where it ought to be put1 and set ,nathan to driving it4 ,now it began to split at once2 though ,nathan could not see why the board should not split one way as well as the other4 ,rollo himself did not understand it very well4 ,nathan asked him why it would not split the other way1 and he said that that was across the grain4 ,but when ,nathan asked him what he meant by grain1 he could not tell4 ,he took up the wood and examined it1 and observed little lines and ridges1 running along in the direction in which it would split2 but at the ends of the board1 where it had been sawed across the grain1 it was rough4 ,he determined to ask ,jonas about it1 or his father4 ,he then went to work1 and made the wedges and a little beetle for ,nathan4 ,he made ,nathan's beetle smaller than his own1 because ,nathan was not strong enough to strike hard with such a heavy beetle4 ,he did not get it done in season to use that day2 but1 the next day1 he and ,nathan sat down upon the shed floor1 and spent an hour in splitting up the boards4 ,they split them all up into good1 fine kindling wood4 ,then they piled the pieces up in a neat pile1 and then brought ,dorothy out to see them4 ,dorothy seemed very much pleased1 and promised the boys that1 the next time she baked pies1 she would kindle the fire in the oven with their kindling wood1 and then she would bake them each a little apple turnover4 99 99 99 99 99 ,that evening1 just before ,rollo went to bed1 he asked ,jonas if he could tell him why boards would only split along the grain4 ,yes1 said ,jonas1 ,i think ,i can tell you4 ,but do you know what the grain is8 ,no1 said ,rollo1 ,i don't know any thing about it4 ,you know that boards are made from the stems of tall trees4 ,yes1 said ,rollo4 ,well1 now when trees are growing1 there are little channels running up and down from the roots to the branches4 ,what are they for8 said ,rollo4 ,they are for the sap4 ,the sap flows up and down in them4 ,but then there are no channels across from one side of the tree to the other1 because there is no sap to go across4 ,the sap all has to go up from the roots to the branches2 and so the channels must all be up and down the tree4 ,now1 continued ,jonas1 when they cut down the tree1 the trunk will split easily1 up and down1 the way the channels and fibres all go2 but it won't split easily across4 ,and just so1 when they saw it up into boards1 the boards will all split lengthwise1 from end to end1 for this is the way the channels and fibres all lie2 but it won't split across1 for that would be across all the fibres1 and the wood is made very strong in that direction1 and it is well it is so4 ,why8 said ,rollo4 ,because1 if trees would split across1 as easily as they do up and down1 the first good wind would blow down all the forests in the world4 ,o1 ,jonas6 exclaimed ,rollo1 all the forests in the world8 ,yes1 replied ,jonas1 if the wind blew all over the world4 ,,horology4 ,one day1 at eleven o'clock1 ,rollo1 after having put away his books carefully into his desk1 went out to play4 ,it was a calm and pleasant autumnal day4 ,brown and yellow leaves were falling from the trees1 and lying about the yard4 ,rollo found ,nathan sitting upon the steps of the door which looked toward the garden yard4 ,he felt satisfied and happy1 for he had studied his lessons diligently1 and1 when he saw ,nathan1 he concluded to have a little play with him4 ,now1 ,nathan1 said ,rollo1 ,i will lie down upon the steps1 and make believe ,i am a bear gone to sleep1 and you come and poke me with your stick1 and then ,i will growl at you4 ,well1 said ,nathan1 ,i will4 ,so ,rollo laid down upon the steps1 putting his arms upon the threshold of the door for a pillow1 and his head upon his arms1 and pretended to be asleep2 but he did not look much as if he was asleep1 after all1 for he could not look quite sober4 ,he tried to look sober2 but there was a lurking smile upon his face1 which made his countenance look quite different from that of a bear4 ,nathan came creeping along softly1 and when he got near enough1 he began to poke him with the end of his little whip-handle2 then ,rollo would start up and begin to growl1 when ,nathan would scamper away1 shouting with laughter1 ,rollo after him1 upon all-fours4 ,this play lasted several minutes1 until at length ,nathan spoiled it by punching ,rollo too hard with his whip-handle4 ,a great many plays are spoiled by roughness on the part of some who are engaged4 ,rollo1 being hurt a little1 got out of patience4 ,he ought to have asked ,nathan1 pleasantly1 not to punch him so hard4 ,instead of that1 however1 he declared that he would not play any more1 and got up and went away4 ,nathan followed him1 lashing the ground and the leaves with his whip4 ,they both went into a corner of the yard1 where ,rollo used to have his sand-garden4 ,this sand-garden was made of clean sand1 which ,rollo and his cousin ,james once wheeled up from the brook2 and then1 after they had smoothed it out1 and raked it over1 they used to get plants and flowers1 without any roots1 and stick down1 and then call it their garden4 ,they used to water the plants1 and so they could keep them green and bright for several days1 which was long enough for them2 for1 after that1 they generally preferred putting down fresh ones4 ,but1 now1 the sand-garden had been for a long time neglected4 ,the remains of some of the old plants were there1 withered and dried1 and the leaves of autumn were scattered over its surface4 ,rollo began to rake off the leaves with his fingers1 and then sat down1 and went to digging a hole in the sand4 ,it was very dry upon the top1 but on digging down a little way1 he found it damp1 and so it would hold together pretty well1 and he could pat it into any shape4 ,a load of clean sand makes a very good place for children to play in1 in a corner of a yard4 ,rollo sat down on one side of the sand-garden1 and ,nathan on the other1 and both busied themselves in digging and building little houses4 ,they both became very much interested1 and sat some time very still1 until1 at length1 ,rollo looked around to see what ,nathan might be doing4 ,what are you doing1 ,thanny8 said he4 ,o1 ,i'm making the sand run down through4 ,rollo observed that ,nathan had an old tin dipper1 which he was holding up in one hand1 and putting some dry sand into it with the other4 ,there was a very small hole in the bottom of the dipper1 for it was an old one which had been worn out and thrown away2 and the sand ran out of this little hole in a fine stream1 and it was this which interested ,nathan so much4 ,o1 ,nathan1 said ,rollo1 let me have the dipper4 ,no1 said ,nathan1 ,i want it myself4 ,rollo would not take it away from ,nathan1 though he wanted it very much indeed4 ,yes1 ,nathan1 said he1 let me have the dipper1 and ,i will make you an hour-glass out of it4 ,but ,nathan said1 ,no1 no1 and moved away a little farther4 ,rollo then remembered that such a little boy was generally not interested in any one thing very long1 and that1 if he should let ,nathan alone1 he would soon put the dipper down1 and then he could have it without any difficulty4 ,so he went on making houses in the sand1 and in a few minutes ,nathan put the dipper down4 ,then1 soon after1 ,rollo took it up and put some dry sand into it1 and he found that the sand would run very smoothly1 in a fine stream1 through a small hole there was in the bottom of it4 ,he determined to make an hour-glass of it4 ,he had seen an hour-glass at his uncle ,george's4 ,it was made of glass1 big at the bottom and at the top1 and narrow in the middle between the two4 ,through the narrow part in the middle1 there was a very small hole1 to let the sand run down through2 and there was just sand enough put in to run through in an hour4 ,so that1 if a person should set the sand to running1 he would know when an hour had expired1 by observing when the sand had all run through4 ,rollo thought that he could make an hour-glass2 and he thought it would be a great convenience to him to have an hour-glass in the yard2 because it often happened1 when he came out to play1 that his mother would tell him that he might stay out an hour2 and then he had to go in very often to look at the clock1 in order to know exactly when the hour had expired4 ,there were1 however1 so many little sticks and old leaves in the sand1 that it kept getting continually clogged up1 and at last ,rollo began to get discouraged4 ,he tried to pick out the little sticks2 but he found he could not do that1 and at last it occurred to him that probably ,dorothy had some sand in the house that was cleaner4 ,he accordingly went in and asked her4 ,she told him that he must wash his own sand1 and that would make it clean4 ,but haven't you got some that is clean already8 said he4 ,yes1 said ,dorothy2 but you will like your hour-glass better if you make it all yourself4 ,so ,dorothy told him how to wash sand1 for ,rollo said that he did not know4 ,she said he must put a little in a basin1 and then pump water into it4 ,when the basin is nearly full of water1 you must stir it round1 and then pour off the water1 and pump in more2--do this until the water comes off clear4 ,so ,rollo took the basin which ,dorothy gave him1 and went out to his sand-garden1 and put in a little sand4 ,then he went to the pump1 and pumped water into it4 ,then he stirred it about with his hand4 ,the water immediately became very turbid1 and a great many little sticks and leaves came floating up to the surface4 ,rollo was surprised to find how rapidly the water separated the light things which would float upon the top1 from the heavy sand which would sink to the bottom4 ,he kept pouring off the water1 and pumping in more1 until at length no more sticks and leaves came off1 and the water appeared pretty clear4 ,then he carried the sand away1 and spread it out upon a clean board in the sun to dry4 ,while he was thus at work preparing the sand for his hour-glass1 ,jonas happened to come by1 and asked ,rollo what he was doing4 ,rollo told him that he was making an hour-glass4 ,jonas looked on for a few minutes1 and then he told ,rollo that he thought that was a pretty good plan4 ,and ,i am going to have a time-keeper1 too1 said he4 ,are you8 said ,rollo4 ,what8 ,i am going to make a dial1 said he4 ,a dial6 said ,rollo2 what1 a real dial8 ,rollo had an idea that a dial was exceedingly complicated and difficult to make1 or to understand2 and1 in fact1 it is difficult to make one that shall be exact in its indications4 ,he did not think it possible that ,jonas could make one4 ,yes1 said ,jonas1 a real dial2 and ,i have got a noon mark already4 ,a noon mark6 said ,rollo2 what is a noon mark8 ,it is a mark to show when it is exactly twelve o'clock4 ,let me go and see it1 said ,rollo1 while my sand is drying4 ,rollo followed ,jonas off into the barn1 and when there1 ,jonas pointed to a small line which he had cut with his penknife upon the barn floor4 ,it began at the foot of one of the posts1 by the side of the door1 and extended back into the barn exactly straight4 ,is that the noon mark8 said ,rollo4 ,he was surprised to see that a noon mark was nothing but a cut with a penknife upon a barn floor4 ,yes1 said ,jonas2 that is a meridian4 ,a meridian6 said ,rollo1 looking upon it with an air of great curiosity and respect4 ,yes1 said ,jonas2 a line drawn exactly north and south1 is called a meridian line2 and that is exactly north and south4 ,what do you call it a noon mark for8 said ,rollo4 ,because1 said ,jonas1 the shadow of the edge of the door post will always be exactly upon it at noon4 ,so that ,i can always tell now when it is noon1 by the shadow of the post upon my noon mark1 if the sun shines4 ,all this was very new and very curious to ,rollo4 ,he had never seen or heard of a noon mark before2 and it seemed to him a very simple and beautiful way of knowing when it was noon4 ,he asked ,jonas how he found out about it1 and ,jonas told him that he had been reading about it in a book on astronomy4 ,your father let me have the book1 said he2 and see my chalk marks for the sun's shadow4 ,rollo looked1 and found that ,jonas had put down quite a number of chalk marks along in a line1 where they had first began to mark the place where the shadow of the door reached into4 ,rollo and ,lucy had forgotten all about their plan of making such a series of observations2 but ,jonas had gone on regularly1 making a mark every ,monday1 at noon1 precisely4 ,as the sun1 at that season of the year1 was going round farther and farther to the south every week1 it shone in farther and farther upon the floor1 so that each chalk mark was farther in than the one made the week before4 ,in order to make his marks at the right time1 ,jonas wanted to know1 every ,monday1 when it was precisely twelve o'clock1 and this led him to make his noon mark1 having seen the account of it in the book which ,rollo's father had lent him4 ,he learned there that the shadows of all upright objects are cast exactly north at twelve o'clock1 or rather very nearly north2 near enough for his purposes4 ,now1 as the post of the barn door was upright1 he knew that the shadow of it would be in the north and south line at noon4 ,of course1 if he had a north and south line1 or a meridian line1 as it was called in the book1 drawn upon the floor1 he knew that he could tell when it was noon1 by the shadow of the post coming then exactly upon that line4 ,he explained this all to ,rollo1 and ,rollo was very much pleased with it indeed4 ,he determined to have a noon line somewhere in the house4 ,rollo asked ,jonas what was the way to draw a noon line4 ,jonas told him that there were several ways4 ,one way1 he said1 was to observe some day1 by the clock1 when it was exactly noon1 and then to mark1 upon the barn floor1 the line where the shadow of the edge of the post fell precisely at that moment4 ,another way was to get a compass needle1 and put it down upon the floor1 and then draw a north and south line precisely in the direction that the needle indicated4 ,that would1 of course1 be a north and south line1 because the compass needle always pointed north and south4 ,he said that he adopted both these methods to make his noon line4 ,first1 he got a compass needle1 which ,rollo's father had lent him1 and put that down upon the barn floor just at the foot of the door post1 and observed the direction2 and he also noticed when it was twelve1 by the clock in the house1 and he found that1 when it was twelve by the clock1 the shadow of the post came exactly to the line indicated by the direction of the compass needle2 and so he knew that that was a correct meridian line4 ,,jonas',s ,,dial4 ,that evening1 ,rollo told his father about his hour-glass1 and also about ,jonas's noon line4 ,his father said it was very difficult to draw a meridian line4 ,o no1 father1 said ,rollo2 ,jonas has drawn one1 and he told me how1 and it was a very easy way4 ,yes1 said his father1 it is easy to draw something which you can call a noon mark2 but it is a very difficult and delicate operation to do it with any considerable degree of exactness4 ,i think that ,jonas's is exact1 said ,rollo4 ,it probably may be as exact as he could make it with his means and instruments2 but there are a great many sources of error which he could not possibly have avoided4 ,what8 asked ,rollo4 ,why1 in the first place1 the clock is not exact4 ,it is near enough to answer all the purposes of a family2 but it may often be a minute or more out of the way4 ,then besides1 while ,jonas is going from the clock out to the barn1 the shadow is slowly moving on1 all the time2 so that he cannot tell exactly where the shadow was1 when it was precisely twelve by the clock4 ,then again1 it is not always exactly noon when the shadow comes to the north and south line4 ,it varies a little at different seasons of the year1 though it is so near that we say1 in general terms1 that at noon all shadows of upright objects point to the north4 ,still1 it is not precisely true1 except on a very few days in the year4 ,then1 again1 the post of the barn door is not exactly upright4 ,i thought they always made door posts exactly upright1 said ,rollo4 ,they do make them as nearly upright as they can1 with the common carpenters' instruments2 but they are not exact4 ,to set a post of any kind1 with great precision1 perpendicular to the horizon1 would require very expensive mathematical instruments1 and very laborious and nice observations4 ,then1 again1 if the clock had been exact1 and the post perfectly upright1 ,jonas could not have marked the place of the shadow exactly4 ,the shadow has not an exact and well-defined edge2 and then1 even while he was marking at one end1 the shadow would be moving along at the other end1 and so his noon mark would not be exactly straight4 ,why1 father1 he could make the mark right along quick4 ,no matter how quick he might make it4 ,it would take some time1 wouldn't it8 ,only a very little1 said ,rollo4 ,and do you suppose the sun would stand still1 even during that little time1 so as to let the shadow remain stationary8 ,however1 continued his father1 ,i don't say this to disparage ,jonas's noon mark4 ,i dare say1 it is accurate enough for his purposes4 ,he only wants to know from it when it is time for him to come in to dinner1 or something like that4 ,i only want you to understand what exactness is1 and to see1 a little1 how difficult it is to attain to any considerable degree of it1 in such cases4 ,so thus1 it seems1 that ,jonas has got a sort of a dial8 ,why1 it only tells him what o'clock it is at one hour in the day1 said ,rollo4 ,but ,i think he might make it do for all the afternoon and forenoon4 ,how8 inquired his father4 ,why1 all he has got to do is to watch some day when it is nine o'clock1 and ten o'clock1 and so on1 every hour2 and then make a line where the shadow comes every hour1 just as he did for twelve o'clock4 ,then he will have marks for every hour in the day1 and when the shadow comes along to these marks1 one after another1 he will know what time it is4 ,o1 but the difficulty is1 said his father1 that the shadow will not come to the same places1 at the same hours1 on different days4 ,it will come to the meridian line1 at twelve1 always1--that is1 nearly to it2 but it will not come to any other lines regularly1--that is1 if the object1 which casts the shadow1 is upright4 ,will any other kind of object carry the shadow regularly8 asked ,rollo4 ,yes1 said his father1 an object that leans over to the north1 so as to point to the ,north ,star4 ,if you and ,jonas could put a post into the ground so as to have it point to the ,north ,star1 then you could mark1 all around it1 the places to which the shadow would come for every hour in the day1 and afterwards it would come to the same places regularly1 or nearly so4 ,it would be near enough for your purposes2 and ,i don't know but that it would be quite a respectable dial for you4 ,rollo then asked his father why it was that a post1 which pointed to the ,north ,star1 would bring a shadow any more regularly to the hour marks1 than an upright one would2 but he said that ,rollo did not know enough1 yet1 to understand the explanation1 even if he were to try to explain it4 ,therefore1 said he1 you must wait until you study astronomy before you can expect to understand it2 but you can now1 in the mean time1 make such a dial1 if you wish to do it4 ,rollo did wish to do it very much4 ,he accordingly told ,jonas all that his father had said4 ,it seemed very strange to ,jonas1 that a post1 pointing to the ,north ,star1 should have its shadows move round any more regularly than a post in any other position4 ,he could not imagine what the ,north ,star could have to do with the shadows4 ,still1 he determined to try the experiment4 ,a few days after this1 ,jonas did try the experiment4 ,he got two narrow boards1 which were once pickets belonging to a picket fence1 one end of each was sharp1 so that it could be driven down into the ground4 ,then he selected a certain part of the yard1 in a corner1 where the dial would be out of the way1 and yet the path to the barn led along pretty near it4 ,the reason why ,jonas got two boards was this3 he knew that1 if he drove only one stake into the ground1 and inclined it towards the ,north ,star1 it would be very likely to get started out of its proper position2 but if he had two1 he could drive the second one down perpendicularly from the end of the first1 and then nail the two ends together2 and that would keep all steady4 ,after having got every thing ready1 the boys waited till the evening before fixing up the dial1 because they could not see the ,north ,star in the day time4 ,but when the evening came1 they went out1 and began their preparations4 ,it was a clear and pretty cold evening1 and the stars were out in thousands4 ,which is the ,north ,star8 asked ,rollo4 ,jonas looked about a minute or two1 saying1 ,let me see--where's the ,dipper8 ,o1 ,i see a part of it2 the rest is down behind the barn4 ,it was up high the last time ,i saw it4 ,where is the ,dipper8 said ,rollo1 looking eagerly in the direction to which ,jonas was turned4 ,come this way1 said ,jonas1 so as to be out of the way of the barn1 and you can see it better4 ,so ,jonas pointed out the ,dipper to ,rollo1 with its square body1 and long1 bent handle4 ,it was at first quite difficult for ,rollo to see any thing that looked at all like a dipper2 as it consisted only of stars1 which it required some imagination to make look like one4 ,the handle reaches almost down to the ground1 said ,rollo4 ,down to the horizon1 you mean1 said ,jonas4 ,is that the horizon8 said ,rollo4 ,yes1 said ,jonas1 where the earth and sky meet4 ,not long ago the ,dipper handle was away up there1 he continued1 pointing up very high4 ,does the ,dipper move8 said ,rollo4 ,yes1 it goes round and round the ,north ,star1 all the time4 ,all the stars that are near the ,north ,star keep going round and round it1 once every day4 ,and the rest of the stars1 said ,rollo1 do they go round too8 ,yes1 said ,jonas2 only they are so far from the ,north ,star1 that they go in larger circles1 and so go down below the horizon1 and are out of sight sometimes4 ,they come up in the east1 like the sun1 and go over and down in the west4 ,but they don't go over straight1 he added4 ,they don't come right up straight2 and so go directly over4 ,they slant away1 off to the south1 so as to keep always just so far from the ,north ,star4 ,that's curious1 said ,rollo4 ,i think it is1 said ,jonas4 ,and they all go together2 they don't move about among themselves1 at all4 ,don't they8 said ,rollo4 ,no1 said ,jonas2 only there are a few wandering stars1 that keep wandering about among the others4 ,but the rest all keep exactly in their places1 and all go round together2 so they are called fixed stars4 ,show me one of the wandering stars1 said ,rollo4 ,i don't know which they are1 said ,jonas1 only they are pretty bright ones4 ,i guess that's one1 said ,rollo1 pointing to a pretty bright star in the east4 ,perhaps it is1 said ,jonas4 ,i wish ,i knew1 said ,rollo4 ,i'll tell you how you can find out1 said ,jonas4 ,how8 asked ,rollo4 ,why1 when you go into the house1 take a piece of paper1 and go to the window1 and make some dots upon it1 for all the stars around that one4 ,make the dots just in the places that the stars seem to be in4 ,then let them all go4 ,they will rise more and more1 and go overhead1 and down in the west1 and to-morrow night they will come up in the east again2 and then you can look at them again1 and see if the bright star has changed its place at all4 ,rollo said that he meant to do that2 and then he said that he began to feel cold1 and wanted to go in4 ,but ,jonas told him that he ought to wait and help finish the dial4 ,so they went to the place which ,jonas had selected1 and ,jonas1 looking up first at the ,north ,star1 made a hole in the ground1 with an iron bar1 in an oblique direction1 so that the bar should point pretty nearly to the ,north ,star4 ,then he drove in one of his stakes in the same way4 ,he then made a hole1 perpendicularly1 directly under the end of this inclined stake1 and drove the other stake down into that4 ,the two upper ends of the stakes were now together4 ,then ,jonas stooped down1 so as to bring his eye near the edge of the inclined stake1 at the lower end1 so that he could sight along the edge of it1 towards the star4 ,he had previously cut a notch in it1 so that he could get his eye down far enough to look directly along the edge4 ,at the same time1 ,rollo took hold of the upper end1 and stood ready to move it either way1 as ,jonas might direct1 until it should point exactly towards the ,north ,star4 ,down1 said ,jonas4 ,then ,rollo moved it a little down4 ,down more4 ,rollo moved it farther4 ,up--up a little1 added ,jonas4 ,there--that will do4 ,now hold the two stakes firmly together1 exactly so4 ,then ,jonas took some nails1 which he had before provided1 and nailed the tops of the stakes together1 ,rollo holding the axe up against them1 on the opposite side4 ,this supported the end of the inclined stake firmly1 so that it could not move up or down4 ,this was all that the boys wanted to do in the evening1 and so they both went in4 ,the next day1 ,jonas sawed off the ends of both stakes where they projected beyond the junction2 and then ,rollo said he would watch the clock all day1 and mark the place where the shadow came each hour1 and drive a little stake down4 ,then1 said he1 our dial will be done4 ,but what do you suppose is the reason1 said ,rollo1 that we must make it point to the ,north ,star more than to any other8 ,i don't know1 said ,jonas1 unless it is because the ,north ,star is the only one that keeps always in the same place4 ,the rest move round and round every day4 ,those that are far enough from the ,north ,star to go down below the horizon1 rise and set2 and those that are not far enough1 go round and round in circles1 in the open sky4 ,but the ,north ,star keeps still4 ,does it8 said ,rollo1 turning around1 and looking up to the part of the heavens where he had seen the star the evening before4 ,yes1 said ,jonas2 and the reason why we cannot see it now1 is the bright daylight4 ,it is up there now1 just where it was last night4 ,and the ,dipper1 too8 said ,rollo4 ,yes1 and the ,dipper1 too2 only that has moved half round1 ,i suppose1 and is now away up above the ,north ,star4 ,i wish ,i could see it1 said ,rollo4 ,and he looked as steadily and intently into the clear blue sky1 as he could2 but he could not possibly see the least sign of a star4 99 99 99 99 99 ,however1 the sun shone bright1 and it cast a strong shadow from the stakes which they had driven into the ground4 ,jonas soon went away to his work1 and left ,rollo to mark the hours by means of the clock4 ,so ,rollo had to go into the house very often to see what time it was2 and at last his father1 who was sitting there at his writing1 asked him what made him want to see the clock so much4 ,rollo told him the reason4 ,so his father put down his pen1 and came out to see the dial4 ,when he saw the two stakes1 with their lower ends driven into the ground1 and the upper ends nailed firmly together1 he looked at them with a smile1 but did not say any thing4 ,will that do8 said ,rollo1 looking up very eagerly into his father's face4 ,his father did not answer1 but continued to examine the work on all sides1 with a countenance expressive of curiosity and pleasure4 ,it points to the ,north ,star1 exactly1 added ,rollo4 ,jonas sighted it4 ,yes1 said his father2 ,i think that will do2 you have got quite a respectable gnomon4 ,gnomon8 said ,rollo4 ,yes1 said his father2 we call such a thing a gnomon4 ,in common dials1 they are made of brass2 but ,i don't see why this won't do very well4 ,it is rather a large gnomon4 ,is it8 said ,rollo4 ,yes1 said his father1 ,i think it is the biggest gnomon ,i ever saw4 ,but how are you going to mark the hour lines1 ,rollo8 asked his father4 ,why1 we are going to drive little stakes down into the ground4 ',seems to me that you can contrive some better plan than that1 said his father4 ,why8 said ,rollo4 ,is not that a good plan8 ,not very good1 he replied2 because you cannot be exact in driving down stakes4 ,the beauty of a dial is its exactness4 ,i should think that you would do better to put a board down upon the ground1 and mark your lines upon that4 ,o1 the board would get knocked about1 said ,rollo4 ,i dare say that ,jonas would contrive some way to keep it steady4 ,but he says he can't do any thing more about the dial to-day1 for he must attend to his work4 ,let me see--he is putting the harnesses in order1 ,i believe4 ,yes1 sir1 said ,rollo4 ,well1 you may tell him that after he has done the harness that he is at work upon now1 he may finish his dial4 ,then ,rollo's father went into the house1 and away went ,rollo in pursuit of ,jonas4 ,jonas liked the plan of putting a board down very much1 and in a short time he went to work to do it4 ,he planed out a board of the right length1 and then put it down upon the ground1 under and between the two stakes1 but nearest to the upright one4 ,they placed it across at right angles to the line between the stakes1 and of course1 as the stakes were in a north and south line1 the board was in an east and west line1 and so the shadows were cast exactly across it4 ,the board being planed smooth1 the edge of the shadow could be seen much more distinctly upon it1 than upon the ground2 so ,jonas was satisfied that it would be a great deal better to draw the hour lines upon the board4 ,after having determined upon the place where it was to go1 he took it up again1 and then drove down two strong but short stakes1 sawed off square at the top1 into the ground1 one on each side2 so that they should come under the two ends of the board4 ,then he laid the board down again upon the stakes1 and nailed the ends of the board to them4 ,the stakes had been driven in until they were just level with the surface of the ground1 and so the board seemed to be lying along upon the ground too1 though it was1 in fact1 fastened securely to the short stakes4 ,then the boys marked the hour lines upon the board with some black paint2 and thus they had a very respectable dial4 ,when the sun shone1 ,rollo could tell what o'clock it was near enough for all his purposes4 ,illustration ,,the ,,bee-,,hive4 ,one of the drollest of all of ,rollo's experiments was his plan for getting a bee-hive4 ,one day1 he was in the garden with a playmate of his1 named ,henry1 who lived not very far from his father's house4 ,in the back part of the garden were some tall hollyhocks growing4 ,they were in full flower4 ,hollyhocks are very tall4 ,they grow up in a straight stem1 as high as a man's head1 with leaves and flowers from top to bottom4 ,the flowers are large1 and shaped somewhat like a cup1 or rather a wine-glass1 and bees often go into them to get honey4 ,now it happened that as ,rollo and ,henry were sauntering about1 near these hollyhocks1 ,rollo happened to see a bee in one of the flowers1 loading himself up with wax or honey4 ,the flower1 that the bee was in1 was just about as high as ,rollo's head4 ,o1 there's a bee6 said ,rollo2 let's catch him4 ,catch him6 said ,henry4 ,if you do1 you'll catch a sting1 ,i rather think4 ,no1 said ,rollo1 ,i can catch him without getting stung4 ,how8 said ,henry4 ,i will show you1 said ,rollo4 ,so saying1 ,rollo approached the hollyhocks1 and put both his hands up slowly to the flower which the bee was in4 ,he then very carefully gathered together the edges of the flower1 so as to enclose and imprison the bee4 ,he then gently broke off the stem of the flower1 and held it up to ,henry's ear1 to let him hear the bee buzz within4 ,now1 said ,rollo1 ,i wish ,i had a little bee-hive4 ,i would put him in1 and perhaps he would make some honey in there4 ,do you think he would8 said ,henry4 ,yes1 replied ,rollo1 ,i have no doubt he would2 bees always make honey in bee-hives4 ,haven't you got some box that will do8 said ,henry4 ,i don't know1 said ,rollo2 let us go along towards the barn1 and see if we can't find one4 ,i suppose it is no matter what the shape of it is1 he added1 if it is only a box1 with a small hole for the bees to go in and out4 ,but you haven't got but one bee1 said ,henry1 as they walked along towards the barn4 ,rollo held the flower1 with the bee imprisoned in it1 safely in his fingers4 ,o1 ,i can catch plenty more4 ,i could catch a whole hive of them1 in time4 ,but ,i don't believe they will stay and work in your hive1 said ,henry4 ,they will all fly off and go home to where they belong4 ,no1 said ,rollo1 ,i will plug up the hole1 and keep them shut in until they get used to it4 ,when they get wonted to the new hive1 they will stay there1 after that1 ,i know4 ,that's the way they do with doves4 ,but you won't have any queen bee1 said ,henry4 ,bees won't work without a queen bee4 ,i read it in a book4 ,well1 perhaps ,i can catch a queen bee1 some day1 said ,rollo1 rather doubtfully4 ,rollo was so much interested in his plan1 that he was determined not to see any difficulties in the way of it2 and yet he could not help feeling that there was some uncertainty about his succeeding in entrapping a queen bee4 ,however1 just at this point in the conversation1 he suddenly stopped1 and pointed down to a flower-pot1 which stood bottom upwards1 upon a seat1 near where they were walking4 ,there1 said he1 that will do for a bee-hive4 ,ho6 said ,henry1 that is not a box4 ,no matter1 said ,rollo2 it is just as good1 and there is a little hole for the bees to go out and in at4 ,there is always a little hole in the bottom of a flower-pot4 ,so there is1 said ,henry2 but do you think that the bees will make honey in an earthen pot8 ,o1 yes1 said ,rollo1 just as well as in any thing4 ,the bees don't care what they make the honey in4 ,sometimes they make it in old logs4 ,well1 said ,henry1 and we'll call it a honey-pot4 ,and where shall we put it8 ,we can keep it on this seat3 it is as good a place as any2 the bees will be right in the garden as soon as they come out of their hive4 ,so saying1 ,rollo asked ,henry to hold his bee a minute1 while he got the honey-pot ready4 ,henry took the flower very carefully1 so as not to let the bee escape1 and then ,rollo lifted up the flower-pot1 and looked inside4 ,it was pretty clean2 but as ,rollo knew that bees were very nice in their habits1 he thought he would just take it to the pump1 and wash it out a little4 ,in a few minutes1 he brought it back1 and replaced it1 bottom upwards1 upon the seat1 and then prepared to put the bee in4 ,he took the flower again from ,henry's hand1 and then very carefully inserted the edges of it1 which had been gathered together with his fingers1 into the hole4 ,he then began to knock and push the bottom of the flower1 to make the bee go in4 ,the bee1 not knowing what to make of this treatment1 kept up a great buzzing1 but soon went in4 ,there1 said ,rollo4 ,now1 ,henry1 you be ready to clap your thumb over the hole1 as soon as ,i take the flower away1 or else he'll come out4 ,o1 no1 said ,henry2 he'll fly up and sting me4 ,no1 he won't1 said ,rollo4 ,i only want you to keep him in a minute1 while ,i go and get a plug4 ,henry then1 with much hesitation and fear1 put his thumb over the hole1 as ,rollo withdrew the flower4 ,he stood there while ,rollo went for a plug2 but he seemed to feel very uneasy1 and continually called ,rollo to be quick4 ,rollo could not find a plug1 but he picked up a small1 flat stone1 and concluded that that would do just as well4 ,so he released ,henry from his dangerous position1 and put the stone over the hole4 ,there1 said ,rollo1 with a tone of great satisfaction1 when he had done this1 now he is safe4 ,we'll let him stay1 while we go and catch another bee4 ,so they went back to the hollyhocks1 and there1 quite fortunately1 they found another bee just going into one of the flowers4 ,rollo secured him in the same way1 and carried him along1 and pushed him into the flower-pot4 ,henry stood ready to clap the stone on1 as soon as he was in1 and then they came back to the hollyhocks again4 ,they had then to wait a little while1 watching for bees2 at length1 however1 one came1 and1 by and by1 another2 and so1 in the course of an hour or two1 they got seven bees1 all safe in the honey-pot1 and ,rollo said he thought seven were about enough to go to work1 at least1 to begin4 ,they had not yet found any one1 however1 that seemed to ,rollo to be a queen bee4 ,at last1 it was time for ,henry to go home1 and ,rollo concluded to leave his bee-hive until the next morning4 ,he thought he would leave the hole stopped up1 so that the bees might get used to their new accommodations2 but he intended to open it the next day1 in order to let them begin their work4 ,the next morning1 ,henry came over soon after breakfast to see how affairs stood in respect to the bee-hive4 ,he and ,rollo went out into the garden to look at the establishment1 and found every thing as they had left it the night before4 ,rollo felt quite confident of the success of his experiment4 ,the only thing that gave him any uneasiness was the want of a queen bee4 ,he and ,henry were just speculating upon the expediency of sending in a bumble-bee instead1 for a king1 when their attention was arrested by hearing ,jonas calling ,rollo4 ,they looked up1 and saw him standing at the garden gate4 ,rollo1 said ,jonas1 do you want to go out with me to the pasture1 and catch the horse8 ,why1--yes1 said ,rollo4 ,but yet he did not go4 ,he seemed to feel in doubt4 ,must you go this minute8 said he4 ,yes1 said ,jonas4 ,come2 and ,henry may go1 too4 ,well1 wait a minute1 just till ,i go and open the door in my bee-hive4 ,your bee-hive6 said ,jonas2 what do you mean by that8 ,but ,rollo did not hear what ,jonas said2 for he had run off along the alley1 ,henry after him1 towards the place where they had established their hive4 ,what does he mean by his bee-hive8 said ,jonas to himself4 ,i mean to go and see4 ,so ,jonas opened the garden gate1 and came in4 ,when he came up near the seat where ,henry and ,rollo stood1 he found the boys standing a step or two back from the flower-pot1 both watching the hole with the utmost intentness4 ,what are you looking at1 there1 boys8 said ,jonas1 with great surprise4 ,o1 we are looking to see the bees come out4 ,the bees come out6 said ,jonas4 ,yes1 said ,rollo2 that is our bee-hive1--honey-pot we call it4 ,we have put some bees in it4 ,here ,jonas burst into a loud1 and long1 and apparently incontrollable fit of laughter4 ,henry and ,rollo looked upon him with an expression of ludicrous gravity and perplexity4 ,what are you laughing at8 said ,rollo4 ,jonas could hardly control himself sufficiently to speak2 but presently he succeeded in asking ,rollo if he supposed that bees would make honey there4 ,certainly ,i do1 said ,rollo1 with a positive air4 ,why should they not8 ,they don't care what shape their hive is1 or what it is made of1 and this flower-pot is as good as any thing else4 ,there6 there6 see1 ,henry1 he exclaimed1 interrupting himself1 and pointing down to the flower-pot1 one is coming out4 ,henry and ,jonas both looked1 and they saw a poor1 forlorn-looking bee cautiously putting forth his head at the hole1 and then slowly crawling out4 ,he came on until he was fairly out of the hole1 and then1 extending his wings1 rose and flew away through the air4 ,here ,jonas burst out again in a fit of laughter4 ,you needn't laugh1 ,jonas1 said ,rollo2 he'll come back again2 ,i know he will4 ,that's the way they always do4 ,and you suppose that the bees will fill up the flower-pot with honey8 said ,jonas4 ,yes1 said ,rollo2 and then ,i shall take it away without killing any of the bees4 ,i read how to do it in a book4 ,how shall you do it8 said ,jonas4 ,why1 when this honey-pot is full of honey1 ,i shall get another1 and put on the top of it1 bottom upwards4 ,then the bees will work up into that1 and come out at the upper hole4 ,when they get fairly at work in the upper hive1 then ,i shall get ,henry to hold it1 while ,i slip the lower one out1 and put the upper one down in its place4 ,illustration ,as ,rollo was speaking these words1 in order to show ,jonas more exactly how he meant to perform the operation1 he took hold of the flower-pot with both his hands1 and slid it suddenly off of the seat4 ,now it happened that the poor bees that were inside1 chilled with the dampness and cold1 were nearly all crawling about upon the seat2 and when ,rollo suddenly moved the flower-pot along1 forgetting for a moment what there was inside1 the rough edges of the flower-pot bruised and ground them to death1 and they dropped down upon the walk1 some dead1 some buzzing a little1 and one trying to crawl4 ,there now1 ,rollo1 said ,henry1 in a tone of great disappointment and sorrow1 now you have killed all our bees6 ,rollo looked astonished enough4 ,he had no idea of such a catastrophe2 and he and ,henry both at the same instant took up the honey-pot to see if any of the bees had escaped destruction4 ,their eyes fell1 at the same moment1 upon one solitary bee that was standing upon the inside of the flower-pot4 ,his attention had been arrested by the sudden glare of light1 and so1 just as ,rollo and ,henry first observed him1 and before they had time to put the flower-pot down again1 he spread his wings and flew out towards them4 ,down dropped the flower-pot4 ,the boys started4 ,run6 exclaimed ,jonas1 following them with shouts of laughter1 run1 run1 boys1 for dear life6 and away they all went towards the garden gate4 ,the bee1 however1 was not following them4 ,his only object was to get away4 ,he flew in another direction2 but ,rollo1 ,henry1 and ,jonas did not stop to look behind them4 ,they kept on running1 until ,jonas was well on his way towards the pasture1 and ,rollo and ,henry were safe in the shed4 ,and this was the last time that ,rollo ever attempted to make up a hive of bees4 ,,jonas',s ,,magnet4 ,one evening1 after tea1 ,rollo was seated upon his cricket1 before the fire1 reading4 ,his mother was upon the sofa1 also reading1 and so the room was very still4 ,by and by1 ,rollo finished his book4 ,it was quite a small story-book1 and he had been reading it some time1 and so he had got to the end4 ,he laid the book down1 therefore1 upon the table1 and began to consider what he should do next4 ,mother1 said ,rollo1 what shall ,i do8 ,i don't know1 said his mother2 you must contrive some way to amuse yourself1 for ,i am busy reading1 now4 ,rollo sat still1 looking at the fire a few minutes1 and then he thought he would go out into the kitchen1 and see what ,nathan was about4 ,accordingly1 he went into the kitchen4 ,dorothy was at work1 making some bread for the next day4 ,jonas was bringing in wood4 ,nathan was sitting upon the floor before the fire1 very much interested in looking at something which he held in his hand4 ,what have you got1 ,nathan8 said ,rollo4 ,i am seeing this nail stick on1 said ,nathan4 ,stick on6 said ,rollo2 what does the child mean8 ,he accordingly came up to ,nathan1 and found that he had a smooth1 flat bar of steel1 not very regular in its shape1 in one hand1 and a nail in the other2 and he was amusing himself with applying the nail to the bar of steel1 and seeing it adhere4 ,it is a magnet1 said ,rollo4 ,what a big magnet6 ,where did you get it1 ,nathan8 ,jonas gave it to me1 said ,nathan4 ,let me try it1 said ,rollo4 ,and he stooped down by the side of ,nathan1 and offered to take away the magnet4 ,but ,nathan held it off upon one side1 and said1 ,no1 no2 ,i must have it4 ,jonas gave it to me4 ,well1 ,thanny1 said ,rollo1 ,i won't take it away2 only you let me sit here and see you play with it4 ,so ,rollo sat still1 and did not molest ,nathan1 but only looked on and saw him touch the little nail to the bar1 and leave it hanging there4 ,rollo knew it was a magnet1 for he had heard of magnets1 though he had never before had an opportunity of seeing one4 ,as ,nathan found that ,rollo was not going to take the magnet away from him1 he soon ceased to appear afraid of him1 and presently he let ,rollo have the magnet in his hands4 ,rollo said he only wanted to look at it a moment1 to see what made the nail stick on4 ,he examined the steel bar carefully4 ,it was not quite a foot long1 and was shaped like a common flat ruler2 only1 instead of being straight from end to end1 it was swelled out a little along in the middle4 ,on looking at the bar very attentively1 ,rollo observed some very fine1 hair-like lines1 crossing each other1 so as to produce the appearance of fine net-work4 ,rollo supposed that this was what caused the magnet to take up the nail4 ,he observed that there was one place1 near the middle of the bar1 where this net-work was more distinct and strong than in the other parts of the bar1 and so he put the nail there1 expecting that it would be attracted very strongly4 ,but he was surprised at observing that it was not attracted there at all4 ,he then tried it at different places1 all along the bar1 and he found that it was not attracted any where in the middle1 but only at the two ends4 ,while he was wondering what could be the cause of this1 he heard the front door open1 and he knew that his father had come home4 ,so he jumped up and ran off into the entry1 ,nathan following him1 to show his father the magnet4 ,his father was busy putting away his coat and hat1 and told the boys to go into the parlor1 and he would come in1 in a moment1 and see it4 ,when he came in1 he sat down before the fire1 and took the magnet1 ,rollo and ,nathan standing by his side1 and looking on with eager curiosity4 ,rollo's father examined the magnet from end to end1 very carefully1 for some time1 without speaking4 ,at length1 he said1 ,it is an old file4 ,an old file6 said ,rollo4 ,yes1 said his father4 ,some of ,jonas's work1 ,i suppose4 ,yes1 sir1 replied ,rollo2 at least it is ,jonas's magnet4 ,there you see the marks1 continued his father1 pointing to the net-work1 of the old file teeth4 ,jonas ground them nearly out4 ,are those the marks of the file teeth8 said ,rollo4 ,i thought it was the magnetism4 ,no1 said his father1 smiling1 those are the traces of the file teeth1 undoubtedly4 ,you may go and ask ,jonas how he got his magnet4 ,so away went ,rollo and ,nathan in pursuit of ,jonas4 ,they found him in the kitchen1 just arranging his wood for the morning fires4 ,they asked him where he got his magnet1 and ,jonas replied as follows3-- ,why1 the other day1 ,i went into town with your father's watch1 to get a new crystal put in2 and when ,i was at the watchmaker's1 ,i saw a curious-shaped piece of iron hanging up4 ,i asked the man what it was4 ,he said it was a magnet1 that he kept to touch needles4 ,then he gave me a nail1 and let me see how the magnet would attract it4 ,he told me1 too1 that if ,i had a knife1 and would rub my knife on the magnet1 the knife would attract1 too2 and so ,i did rub it1 and ,i found that my knife would attract the nail1 though not very strong4 ,then ,i asked him if any piece of iron would attract1 after it was rubbed upon the magnet2 and he said that iron would not1 but that any piece of steel would4 ,he told me that if ,i would bring a larger piece of steel1 when ,i came after the watch1 he would rub it for me1 and then ,i should have a larger magnet4 ,i told him ,i had not any steel4 ,but he said any old file would do1 and that ,i might grind the sides and edges a little1 and make it smooth4 ,so1 when ,i came home1 ,i found some old files in the barn4 ,some were three-cornered1 and some were flat4 ,i thought the flat would be the best shape1 and ,i asked your father if he would give me one of them4 ,he said he would2 and so ,i ground the ends square1 and the sides smooth1 upon the grindstone4 ,then1 when ,i went after the watch1 the man rubbed it for me1 and it makes a very good magnet4 ,then ,rollo and ,nathan went back1 and repeated this story to their father4 ,very well1 said their father2 that was a very good way to get a magnet4 ,i remember giving ,jonas the file2 but ,i did not know what he wanted it for4 ,i think a magnet is a very curious thing1 said ,rollo4 ,see how the nail sticks to it6 ,there are a great many other things curious about it1 said his father1 besides that4 ,what8 said ,rollo4 ,i should want some other apparatus to show you1 replied his father4 ,and can't you get the other apparatus8 ,i don't know4 ,perhaps mother might get it4 ,yes1 ,i'll tell you what we will do4 ,i will name some things which mother may prepare1 and you may get them together upon the table in the kitchen1 when they have got the kitchen all in order4 ,then ,i will come out1 and give you all1 out there1 a lecture upon magnetism4 ,rollo and ,nathan were exceedingly pleased with this plan2 and even ,rollo's mother looked somewhat gratified4 ,she said she did not know much about magnetism1 and she meant to go out into the kitchen herself1 and hear the lecture4 ,and what things shall we get8 said ,rollo4 ,two or three needles1 replied his father1 some fine1 and some coarse2 some thread1 a saucer nearly full of water1 a cork1 the sand-box off of my table1 and a sheet of white paper4 ,put them all in good order upon the table1 and set the chairs around it4 ,then1 when all is ready1 come and tell me4 ,so ,rollo's mother put down her book and went to help ,rollo collect the articles which his father had said he should require4 ,she began to look into her needle book for the needles and thread1 while ,rollo went for the sand-box4 ,when ,rollo came back with the sand-box and the sheet of paper in his hand1 he found ,nathan with his high chair1 at the kitchen door1 trying to get in4 ,what are you doing here1 ,nathan8 said ,rollo4 ,i want to get my high chair in1 he replied4 ,the truth was1 that ,nathan1 having learned from the conversation what was going on1 was eager to secure a good seat for himself1 and so he was attempting to drag out the high chair which was kept in the parlor for him to sit up to the table in4 ,rollo1 as he happened to feel rather good-natured than otherwise1 just then1 after putting down his things1 helped ,nathan get his chair through the door1 and placed it up at the kitchen table1 which stood out in the middle of the floor4 ,he then went into a closet1 and opened a little drawer1 where he knew corks were kept1 and brought out one or two1 selecting the cleanest and softest that he could find4 ,when he came back1 he found ,nathan1 pouring out some black sand1 from the sand-box1 upon the sheet of paper4 ,now1 ,nathan1 exclaimed ,rollo1 running up to him1 and seizing the sand-box1 you are a very naughty boy4 ,and he attempted to take away the sand-box violently4 ,but ,nathan1 though he knew very well that he was doing wrong1 did not seem fully disposed to admit ,rollo's authority to set him right by violence4 ,he resisted2 and1 in the struggle1 the table was pushed away1 and the water in the saucer spilled over4 ,the water ran along under the sheet of paper4 ,nathan1 seeing the mischief that had been done1 was a little frightened1 and released his hold4 ,rollo then took up the paper1 which had sand upon the upper side1 and water dripping off from the under side1 saying1 ,there1 ,nathan1 now see what you have done6 ,i didn't do it1 said ,nathan4 ,you did1 said ,rollo4 ,i didn't1 said ,nathan4 ,hereupon1 ,jonas came up to the table to see what was the matter4 ,each of the boys told his story4 ,now we are in pretty trouble1 said ,jonas2 we thought we were going to have a fine lecture2 instead of that1 there are two boys to be punished1 and wet paper to be dried4 ,punished8 said ,rollo4 ,yes1 said ,jonas1 ,nathan for touching the sand-box1 and you for touching him4 ,why1 he was pouring out all the sand1 said ,rollo1 and ,i was only trying to stop him4 ,yes1 but you know1 said ,jonas1 that you had no right to stop him by violence4 ,that always makes the difficulty worse4 ,here ,rollo began to look pretty sober4 ,he knew that he had done what he had very often been forbidden to do4 ,now1 said ,jonas1 we can wait and tell your mother about it1 when she comes out1 or we can just settle it all among ourselves4 ,how8 said ,rollo1 with an anxious look4 ,why1 ,i can dry the paper and the sand1 said ,jonas1 if you and ,nathan will only punish the boys4 ,how shall we do it8 asked ,rollo1 looking up with a faint and doubtful smile4 ,i think a pretty good punishment1 said ,jonas1 would be for you and ,nathan to go and sit in two corners of the room1 with your faces to the wall1 until ,i get the paper and sand dry--if you think that would be punishment enough4 ,well1 said ,rollo1--his eye brightening at the idea of winding up so unpleasant a business so easily1--well1 ,nathan1 let's go4 ,nathan was ready1 and so he climbed down from his high chair1 and as ,rollo went to one corner of the room1 he went to the other1 and they took their places1 as ,jonas had directed2 only ,nathan could not resist the temptation of looking round1 now and then1 to see how ,jonas got on with the drying of the paper4 ,they1 however1 bore their self-inflicted punishment very patiently2 and when ,jonas had got the paper dried1 and the table wiped down1 and every thing replaced as it was before1 he told them that it was time for them to get up again4 ,the punishment was not very severe1 it is true2 but then1 it was probably a pretty efficacious one1 in respect to its effect in impressing it upon ,nathan's mind that he must not touch things without leave1 and upon ,rollo's1 that1 when ,nathan is doing wrong1 he must not set him right by violence4 ,in a short time after this1 the things were all ready upon the table1 the chairs were placed around it1 and ,rollo went to call his father4 ,he found him writing a letter4 ,as soon as he reached the end of a sentence1 he came out1 and took his place at the table4 ,rollo's mother sat next to him at the same side of the table1 and ,jonas and ,dorothy in two chairs1 on the opposite side4 ,rollo then was placed at one end of the table1 and ,nathan1 in his high chair1 at the other4 ,just then1 however1 ,rollo's mother observed that the table was wet a little4 ,why1 ,rollo1 said she1 how came the table wet8 ,why1 ,nathan and ,i did it1 said he4 ,how8 said his mother4 ,why1 we did it--eh--pulling4 ,but ,jonas has settled it all1 mother4 ,ah6 ,jonas has settled it1 has he8 very well4 ,then we will all now attend to the lecture4 ,,magnetism4 ,rollo's father looked over the things which had been arranged upon the table1 for a moment1 in silence1 and then took up ,jonas's magnet4 ,this bar is what they call a magnet1 said he2 but all the magnetism is in the two ends4 ,it is8 said ,rollo2 and what is the reason of that8 ,you can see that it is so1 said his father1 without answering ,rollo's question1 in this way4 ,so he laid a small nail down upon the table1 and then touched the middle of the magnet to the nail4 ,it was not attracted at all4 ,then he moved it along a little1 towards one end1 and touched it again4 ,still it was not attracted4 ,then he moved it along farther and farther2 but the nail was not attracted until he got to the end of the bar1 and then the nail hopped up and adhered to it quite strongly4 ,how curious6 said ,rollo4 ,his father then repeated the same experiment with the other half of the bar1 and found the result the same4 ,the nail did not appear to be at all attracted until he reached the end1 and then it was lifted and held by this end1 just as it was by the other4 ,so that1 you see1 said ,rollo's father1 that the attractive power of the magnet resides in the ends4 ,well1 father1 what is the reason8 ,i don't know1 said his father4 ,don't you know1 father8 said ,rollo4 ,i thought you were going to tell us all about it4 ,no1 said his father4 ,i only know a very little about it1 myself4 ,i am going to explain to you some of the facts1--such as ,i happen to know4 ,so you must all remember this fact1 that in the magnet1 the attractive power is not distributed over the whole mass1 but resides only in the opposite ends4 ,these ends are called poles4 ,yes1 sir1 said ,rollo1 we will remember4 ,now ,i can make this apparent in another way1 said his father4 ,then he asked ,rollo's mother to thread a needle2 and when it was threaded1 he asked ,jonas to stand up and hold the thread in such a manner as to let the needle hang over the middle of the table4 ,then1 when the needle was still1 he brought up the middle of the magnet very near to the needle2 but it did not move towards it at all4 ,then he drew the magnet along towards himself1 keeping it at the same distance from the needle1 and when the end of the bar came opposite to the needle1 it immediately leaped out of its place1 and adhered strongly to it4 ,there is another way still1 continued the lecturer1 better than either of these4 ,so saying1 he took off the needle1 which had adhered to the magnet1 and drawing out the thread1 he laid the needle itself carefully away upon a distant corner of the table4 ,rollo took it up1 and was going to place it back with the others4 ,but his father told him to put it down again1 by itself1 where he had placed it1 and not to touch any of the things without his direction4 ,i am going to show you another way1 he added1 of making it evident that the attractive power of the magnet resides at or near the poles4 ,so saying1 he opened the sheet of paper1 and spread it out upon the table4 ,then he laid the magnet down upon it4 ,now1 ,jonas1 said he1 sprinkle some sand upon it from my sand-box1 carefully1 and see where the sand will adhere4 ,so ,jonas took the sand-box1 and held it over the bar1 not very high1 and moved it slowly along1 from one end to the other1 and thus sanded the magnet all over4 ,the sand fell off of it1 however1 freely1 at every part except the ends2 and ,jonas1 observing that it seemed to adhere there1 held the sand-box a little longer over those places2 and thus there was formed a sort of a black bur at the extremities1 consisting of an accumulation of the black particles of sand4 ,rollo's father then took up the bar carefully1 and passed it around1 so that all who were seated at the table could examine it closely4 ,it is thickest on all the edges and corners1 said ,rollo4 ,yes1 said his mother2 and the sand forms little black bristles1 pointing off in every direction4 ,they all examined it attentively1 and observed the little black bristles pointing out every way from the edges and corners at the ends4 ,this shows you1 said ,rollo's father1 exactly how the magnetic power1 so far as its attractive force on other bodies is concerned1 is distributed4 ,you see it resides in the two ends1 and the two ends seem to be exactly alike4 ,yes1 sir1 said ,rollo1 exactly4 ,they seem to be so1 continued his father2 but the fact is1 the magnetism of one end is very different from that of the other4 ,i see that the cluster of sand is a little bigger at one end1 than it is at the other1 said ,rollo's mother4 ,she was more observing than the others1 and had noticed a little difference1 which had escaped the rest4 ,that indicates only a difference in degree1 said ,rollo's father2 but there is a difference in kind4 ,what do you mean by that1 father8 asked ,rollo4 ,why1 if the attractive powers at the two ends were both alike in their nature1 only one was stronger than the other1 then the difference would be in degree2 but there is a difference in the nature of the magnetism itself4 ,in fact1 the magnetisms of the two ends are of opposite natures in some respects4 ,why1 both ends attract the sand1 said ,rollo1 just alike4 ,true1 said his father2 they seem to attract the sand in precisely the same way2 and1 looking at the bar1 as ,i now hold it up1 he added1 with the sand adhering in the same way at the two ends1 one would suppose that they were both magnetic alike4 ,but1 in fact1 there is a great difference between them4 ,all the company looked upon the two ends of the bar1 as ,rollo's father held it up1 wondering how he would show that there was any difference between them4 ,now1 in the first place1 he continued1 we must get the sand off of the ends4 ,do you think you can get it off for me1 ,rollo8 said he4 ,rollo took the bar very eagerly1 and attempted to brush the sand back upon the paper4 ,he succeeded in brushing off a little of it2 but the greater portion remained4 ,when he rubbed upon one side1 it moved round to the other2 and he could not get it off4 ,hand it to me1 said his father1 and ,i will show you how it can be done4 ,he also asked ,jonas to hand him the tongs1 which were standing by the side of the fire4 ,he then held the tongs over the sheet of paper1 in a horizontal position1 and gently rapped the end of the magnet against them1 letting the end project a little over the tongs4 ,this knocked all the sand off1 and left the bar clean as it was before4 ,now let me see1 said he1 what was it that ,i was going to tell you next8 ,you were going to show us1 said ,rollo's mother1 that there are two different kinds of magnetisms in the two ends of the bar4 ,o1 yes1 said he4 ,in order to do this1 ,i must poise a needle in a new way4 ,he then took up one of the corks which ,rollo had put upon the table4 ,from one end of this cork1 he cut off1 with his penknife1 a round1 flat piece4 ,it was about as large around as a wafer1 but somewhat thicker4 ,he cut a little groove along the upper side of this1 and laid the same needle which he had before used1 and which he had put away upon the corner of the table1 into this groove4 ,then he put the whole carefully into the saucer of water1 which he had previously drawn up towards him4 ,there1 said he1 we call a cork like that1 a float2 because it is intended to float a needle upon4 ,now1 you see1 the needle being supported by the cork1 and the cork floating freely in the water1 the needle is at liberty to move in any way4 ,nathan thought it was a very curious experiment to poise a needle so1 upon a piece of cork1--even without the magnetism4 ,and he watched it as it slowly moved about1 with a face full of interest and curiosity4 ,the needle swung round a little one way and the other1 and finally came to a state of rest4 ,then ,rollo's father held the magnet in his hands1 in such a manner as to point it towards the needle1 and then gradually brought it down near the water1 just by the side of the point of the needle4 ,the point immediately began to move slowly towards the bar2 but ,rollo's father lifted it up suddenly1 before the needle had time to touch it4 ,then he brought the same end of the magnet down upon the other side of the point of the needle1 and that drew it back again4 ,there1 said he1 you all see that the point of the needle is attracted by the bar1 whichever side ,i put it4 ,they all said they saw it very plainly4 ,now1 said he1 ,i am going to turn the magnet1 and bring the other end of it down to the point of the needle2 and if the magnetism at this end is the same with that in the other1 the point of the needle will of course be attracted by this end too4 ,certainly1 said ,rollo's mother4 ,then he brought down the other end of the bar towards the needle4 ,this other end was a little bigger than the one which he had tried first1 because the file had been a little bigger at that end4 ,but the needle1 instead of being drawn towards it1 as it had been towards the other end1 began to move slowly away from it4 ,why1 it is going away1 said ,rollo4 ,his father did not answer1 but immediately raised the bar and put it down upon the other side of the point1 and then the point began to move away back again2 being evidently driven away from the large end of the magnet1 on whichever side it was presented4 ,then ,rollo's father reversed the magnet again2 that is1 he brought the smaller end towards the needle as at first4 ,the point of the needle was now attracted1 that is1 drawn towards the magnet2 and then when he changed it again1 and brought the large end to the needle1 it was always repelled2 that is1 driven away again4 ,now you see1 he said1 that the small end of the magnet attracts the point of the needle1 and the large end drives it away4 ,that shows that the magnetism in the two ends is of two different kinds4 ,and now1 he continued1 there is one thing more which is remarkable about it2 and ,i want you to observe it very carefully4 ,you see1 he says1 that the small end of the magnet attracts the point of the needle4 ,but if ,i try it now upon the other end of the needle1 where the eye is1 it will repel that1 just as the large end of the magnet repels the point4 ,he tried it1 and the result was just as he had said4 ,and he repeated the experiment in a great many ways1 and they always found that the large end of the magnet would draw the eye of the needle towards it1 and drive the point away2 and the small end of the magnet would draw the point of the needle1 and drive the eye away4 ,this proved1 as ,rollo's father said1 some great difference between the magnetisms of the two ends4 ,and you see1 he added1 that it is a difference in kind1 not merely a difference in degree4 ,but one thing seems strange to me1 said ,rollo's mother1 and that is1 that both ends of the magnet don't attract the point of the needle1 just as both of them attracted the nail4 ,and the sand1 said ,rollo4 ,yes1 added his mother4 ,when you brought both ends of the magnet1 one after the other1 to the nail1 they both attracted it4 ,and so they did the needle which hung down by the thread1 said ,jonas4 ,yes1 said ,rollo's mother2 but now this needle1 that is floating upon the water1 is half attracted1 and half repelled4 ,the reason is1 said ,rollo's father1 that the needle1 that is floating upon the water1 is a magnet itself1 and has two magnetic poles2 but the sand1 and the nail and the needle that ,jonas held up by the thread1 were not magnets4 ,they were only common pieces of iron and steel4 ,why1 father1 said ,rollo1 that was the very same needle2 you laid it away upon the corner of the table4 ,yes1 said his father2 but it was not a magnet then4 ,when8 asked ,rollo4 ,why1 when ,jonas held it up by the thread4 ,and is it a magnet now8 ,yes1 said his father4 ,we will see if it is not4 ,so he took the needle off from the float1 and put it upon the paper4 ,he then sprinkled a little sand over it1 from the sand-box1 and1 upon taking it up1 they all saw that there was a little tuft of black sand both upon the point and at the eye1 showing that it was magnetic at both ends4 ,it became magnetic1 said ,rollo's father1 only by being touched by the bar magnet2 and that was the reason why ,i put it away by itself as soon as it had touched the bar4 ,i did not want to have it mixed with the other needles1 which had not been touched1 and which1 of course1 were not magnetic4 ,now1 if ,i take one of the needles which has not been touched1 and put it upon the float1 you will see that both ends of it will be attracted by both ends of the bar4 ,so he placed away the magnetized needle upon the corner of the table again1 and took another one1 and placed it very carefully upon the float4 ,then he brought down one end of ,jonas's magnet very near the point of the needle4 ,it attracted it4 ,then he brought it down very near the eye of the needle4 ,it attracted the eye too4 ,then he turned the magnet1 and tried the other end1 and he found that that end also would attract both the eye and the point of the needle4 ,try the magnetized needle1 and see if that will attract it too1 said ,rollo's mother4 ,then ,rollo's father took the magnetized needle from the corner again1 and brought the two ends of that1 one after another1 near to the ends of the needle upon the float4 ,it attracted them just as ,jonas's magnet had done1 only a great deal more feebly4 ,so1 you see that this needle is really a little magnet1 just like ,jonas's great one4 ,only there is no proof that it has the two different kinds of magnetism in the two ends1 said ,rollo's mother4 ,we can easily show that1 said his father4 ,he asked ,dorothy to get another saucer full of water1 while he prepared another float4 ,then he put the magnetized needle upon the new float1 leaving the unmagnetized one upon the old float4 ,they both looked almost precisely alike1 each upon its own little disc of cork in its saucer of water4 ,there1 said he1 you cannot see any difference between them2 but there is a great deal of difference between them2 for one is only a common needle of steel1 but the other has its two extremities magnetic in opposite ways4 ,to prove this1 ,rollo's father brought one end of the bar to the point of the magnetized needle1 and the point was repelled4 ,he brought it then to the eye of the same needle1 and it attracted it4 ,then he brought the same end of the bar1 first to the point1 and then to the eye of the unmagnetic needle1 and it attracted them both2 so it was evident that there was a considerable difference1 in reality1 between the condition of the two1 though there was no difference in external appearance4 ,now you see1 from all this1 added ,rollo's father1 that when a magnet touches a piece of steel1 like a needle1 it immediately makes it a magnet itself2 that is1 it makes the two ends magnetic1 one having one kind of magnetism1 and the other the other kind2 and then1 if you take two magnets1 and bring those two poles which have the same magnetism together1 they repel one another2 and if you bring those together which have different magnetisms1 they attract each other4 ,how do you know that they are the same magnetisms that repel1 and different that attract8 said ,rollo's mother4 ,i will show you1 said his father4 ,then he took the needles that he had used off from their floats1 and laid them away4 ,he took next two new needles1 exactly of a size1 and he held them together between his thumb and finger1 with the eyes projecting together4 ,then he rubbed them once or twice upon the end of ,jonas's magnet1 saying1 ,there1 you see ,i use both of these needles alike4 ,of course the eyes have both the same magnetisms4 ,now you will find that when ,i put one of them upon the float1 and then bring the eyes together1 they will repel each other2 but an eye and a point will attract4 ,so two points will repel4 ,but you have not magnetized the points1 said ,rollo's mother4 ,yes1 said his father4 ,when we magnetize one end1 the other end becomes magnetized1 itself1 in the contrary way4 ,so he put one of the needles upon the float1 and then brought the eye of the other down very near to its eye4 ,it was repelled1 as he had said it would be4 ,he then brought the two points together1 and they were repelled4 ,but if he brought an eye towards a point1 or a point towards an eye1 they were attracted4 ,this is the end of my lecture1 said he1 for to-night4 ,o1 father1 said ,rollo1 a little more4 ,no more to-night1 only to recapitulate1 said he4 ,recapitulate8 what is that8 ,why1 tell you1 briefly1 the substance of what ,i have explained1 so that you may remember it4 ,well1 father1 said ,rollo4 ,in the first place1 a magnet has a peculiar and mysterious attractive power for iron1 residing in its two extremities1 which are called its poles2 and the power which resides in one extremity is1 in some way or other1 opposite in its nature to that of the other extremity4 ,each of these poles repels a pole like itself1 and attracts one different from itself1 in any other magnet4 ,poor ,nathan could not understand this grave1 philosophical disquisition very well1 and he began to get pretty sleepy4 ,he had1 however1 been somewhat amused1 during the greater part of the time1 in seeing the corks float about upon the water1 with the needles upon them4 ,so his father took the needles off1 and let him have the two floats in one of the saucers to play with1 a few minutes1 while ,dorothy put the other things away4 ,he asked her to put all the things away together1 so that they could get them ready the next evening1 and then he said that perhaps he would give them another lecture4 ,,intellectual ,,philosophy ,rollo's father gave one or two other lectures upon magnetism1 in the course of which ,rollo found out a good deal about the subject2 and1 having learned from his father's explanations that any magnet1 when balanced freely1 would point to the north and south1 that is1 one end to the north and the other to the south1 he determined to try the experiment4 ,he accordingly poised a needle carefully upon a cork1 as his father had done in his lecture1 and put it in a basin of water upon the platform4 ,but he did not succeed very well4 ,the needle would always swing round1 and turn its point towards the garden gate2 but ,rollo knew very well that the garden gate was not north from the platform4 ,he remembered that the ,north ,star was over the barn1 for he and ,jonas had noticed it particularly when they had made the dial4 ,the needle1 therefore1 ought to have pointed towards the barn1 according to his father's lecture2 but it would not4 ,rollo took up a straw1 and pushed the point of the needle round1 and said1 ,point there6 point there1 ,i tell you6 ,but all in vain4 ,the needle would not heed either his pushing or his commands2 but1 as soon as he let it go1 it would immediately swing back into its old position1 where it pointed towards the garden gate4 ,rollo was just about giving up in despair1 when he saw his sister ,mary coming in from the garden gate1 with a book under her arm4 ,o ,mary1 said he1 what shall ,i do8 ,my needle won't point right4 ,why1 what is the matter with it8 said ,mary4 ,it will point over towards the garden1 said ,rollo2 look4 ,so ,mary came up1 and looked at his needle4 ,she saw that it was pointing towards the garden gate4 ,now ,i'll push it away1 said ,rollo1 and you will see that it comes directly back again4 ,so he took up his straw1 and pushed the point of the needle away4 ,the cork moved1 turning round rapidly1 until at length it swung away towards one side of the basin1 and then suddenly drifted up against the side1 and stuck there4 ,that's another plague1 said ,rollo4 ,it will run up to the side of the basin1 and stick there4 ,what makes it8 said ,mary4 ,i don't know1 said ,rollo4 ,mary sat down upon the platform1 and examined the needle and the surface of the water very carefully4 ,she observed that the water was heaped up a little against the side of the basin1 all around4 ,she asked ,rollo to observe it4 ,yes1 said he1 and the needle and cork run right up that ridge of water4 ,and the bubbles too1 said ,mary4 ,mary pointed1 when she said this1 to several little bubbles which were adhering closely to the side of the basin1 in another place4 ,she took up a little straw1 and pushed away some of the bubbles from the side of the basin1 and then gently moved them back again until they were pretty near1 and observed that they would immediately rush up against the side again4 ,she did not understand this phenomenon1 especially as the water was raised a little along the edge by the side of the basin1 so that the bubbles and the needle actually appeared to rush up hill4 ,after examining this for some time1 ,mary moved the cork float1 with the needle upon it1 back into the middle of the basin1 and then left it to itself4 ,it slowly moved around until it pointed to the garden gate1 as it had done before4 ,now what is the reason8 said ,rollo2 that isn't north4 ,mary looked upon it very attentively for a few minutes in silence1 and then said1 suddenly1 ,o1 ,i see4 ,what8 said ,rollo4 ,she did not answer1 but pointed down to the platform by the side of the basin4 ,rollo looked where she pointed1 and saw the hammer lying there4 ,he had had it to play with a short time before1 and1 when he brought the basin of water1 he had laid it down by his side4 ,what8 said ,rollo4 ,the hammer attracts the needle1 replied ,mary4 ,the hammer8 said ,rollo4 ,yes1 replied ,mary4 ,don't you know that iron attracts the needle1 and it will not point to the north if there is any iron near to draw it away8 ,rollo was just going to take the hammer up1 but ,mary stopped him1 saying1 ,wait a moment4 ,let me take it away slowly1 and see the effect4 ,so ,mary told ,rollo to watch the needle1 while she carefully drew the hammer away4 ,rollo did so4 ,he and ,mary both watched the needle4 ,it was pointing pretty nearly toward the hammer1 and when ,mary gently moved the hammer away1 the needle1 released from the influence which the iron exerted upon it1 slowly moved back towards the direction of the barn1 that is1 the direction of a north and south line1 which is called the meridian4 ,it's going back6 it's going back6 said ,rollo4 ,mary said nothing1 but watched it carefully4 ,the needle swung beyond the direction of the meridian a little way1 and then came slowly back again4 ,so it continued vibrating from one side to the other1 though to a less and less distance every time4 ,finally1 it came to a state of rest2 but it was not then1 however1 exactly in the meridian4 ,what makes it swing so1 back and forth8 said ,rollo4 ,i don't know exactly1 said ,mary4 ,i suppose the force that it moves with1 carries it a little beyond1 and then it is drawn back again1 and that makes the oscillations4 ,oscillations8 said ,rollo1 inquiringly4 ,yes4 ,they call this swinging back and forth1 oscillating2 and each movement is an oscillation4 ,is that the name of it8 said ,rollo4 ,yes1 said ,mary4 ,when you tie a little stone to a string1 and hold the upper end of the string still1 and let the stone swing back and forth1 it makes oscillations4 ,i mean to try it1 said ,rollo4 ,yes1 said ,mary2 and ,i will help you by and by1 after ,i have studied my philosophy lesson4 ,your philosophy lesson8 asked ,rollo4 ,have you got a philosophy lesson to get8 ,yes1 said ,mary1 in that great book4 ,so ,rollo took up ,mary's book1 which she had laid down upon the platform near ,rollo's apparatus4 ,he found that the title of it was ,intellectual ,philosophy4 ,intellectual ,philosophy8 said ,rollo2 and what sort of philosophy is intellectual philosophy8 ,it is the philosophy of the mind1 replied ,mary4 ,it explains to us about the thoughts and feelings of our minds4 ,are there any experiments in intellectual philosophy8 asked ,rollo4 ,yes1 said ,mary1 we can try experiments in intellectual philosophy4 ,what experiments8 said ,rollo4 ,why1 there is a question whether we always dream when we are asleep4 ,i do1 said ,rollo1 every night4 ,yes1 but perhaps not all night long4 ,yes1 ,i do1 said ,rollo4 ,i have good long dreams4 ,but1 replied ,mary1 you may dream several hours in the night1 so as to remember good long dreams in the morning1 and yet perhaps you might have been1 for some time1 perfectly sound asleep1 so as not to have any dreams in your mind at all4 ,some persons think we dream all the time when we are asleep1 and others think we don't dream all the time4 ,now we might contrive some experiments to decide the question4 ,how8 said ,rollo4 ,why1 you and ,i might agree to wake each other up several times1 from a sound sleep1 and then1 if we were dreaming at that time1 we should probably remember it4 ,well1 said ,rollo1 let us try it4 ,that would be an experiment in intellectual philosophy1 said ,mary4 ,rollo determined to try the experiment2 and then he took ,mary's book1 and asked her where her lesson was that day4 ,she found the place1 and ,rollo read a little4 ,he could not understand it very well1 and so he concluded that he would rather have ,mary go and study her lesson1 and then come down and help him make the experiments of oscillation4 ,mary accordingly took her book and went in1 and left ,rollo at his play4 ,,oscillations4 ,in about an hour1 ,mary came down into the yard in pursuit of ,rollo1 in order to try the experiments which she had proposed4 ,when ,rollo saw her coming1 he left his play1 and ran to meet her4 ,well1 ,mary1 said he1 have you come to make the oscillations8 ,yes1 said ,mary4 ,i have brought some thread for strings1 and ,i want you to get some pebble stones--some large1 and some small ones4 ,rollo went for the pebble stones1 while ,mary looked about for a suitable place for making the experiments4 ,in a corner of the yard there was a bench under a tree1 and the branches came down pretty low4 ,mary thought that this would be a good place1 for she could tie her strings to these branches with the pebbles hanging down below2 and she and ,rollo could watch the oscillations1 while seated upon the bench4 ,mary took her station here1 and ,rollo presently appeared1 with the crown of his cap half filled with pebble stones4 ,mary said they would do finely4 ,she poured them out upon the bench by her side1 and ,rollo put his cap upon his head again4 ,now1 ,rollo1 said she1 we will study the art of experimenting4 ,no1 said ,rollo1 we are going to study oscillation4 ,yes1 replied ,mary2 the experiments are to be on oscillations2 but what ,i want principally to teach you1 is1 the proper way to make experiments4 ,well1 said ,rollo4 ,mary said no more1 but she proceeded to tie a small pebble to the end of one of the long threads which she had brought out with her4 ,then she tied the other end of the thread to the branch of the tree1 which was over her head4 ,the pebble then hung down before them1 so that both ,rollo and herself could plainly see all its motions4 ,the first thing1 said ,mary1 is to get a clear idea of the nature of the oscillation1 for we must know what we are experimenting about4 ,so saying1 ,mary carefully took hold of the suspended pebble stone1 and began to draw it off towards one side4 ,she showed ,rollo that1 as it was confined by its string above1 it must move in a curved line when she drew it away from its place1 rising higher and higher the farther it was drawn away4 ,and when she had drawn it out to a considerable distance1 to one side1 it was at a much higher level1 than when it hung down freely in its natural position4 ,now1 said ,mary1 you see that if ,i let it go1 it will descend of course as much as it can1 for the earth draws it downwards4 ,the earth draws it8 said ,rollo4 ,yes1 said ,mary4 ,the reason why things fall is that they are attracted1 or drawn down1 by the earth4 ,now the earth draws the pebble4 ,it would go straight towards it1 if it could2 but the string confines it1 and so it can only go down in the same way that it came up2 that is1 by the curved line4 ,mary then held one of her hands open at the place where the pebble had hung when it had been at liberty1 and let go the pebble1 which she had been holding with the other4 ,it fell down in the curved line1 or arc1 as ,mary had said it would1 until it struck her hand1 and there it stopped and remained at rest4 ,what did you stop it for8 said ,rollo4 ,so that we could see and attend to one part of the phenomenon at a time1 said ,mary2 that is1 the descent of the pebble4 ,you see the attraction of the earth causes the pebble to go down if it can1 and the confinement of the string prevents its going down in any other way than in that curve or arc4 ,for the string keeps it always just its own length from the branch1 and so that makes the curved line the arc of a circle4 ,yes1 said ,rollo1 ,i understand4 ,then ,mary drew up the pebble once or twice more1 and let ,rollo see it fall against her hand4 ,rollo observed that it was a very regular arc4 ,now we see1 continued ,mary1 that ,i hold my hand so as to stop the pebble stone at the lowest point to which it can go2 for ,i hold it exactly under the point where the upper end of the string is fastened to the tree4 ,now ,i will take my hand away1 and then let the pebble fall1 and we will see what takes place4 ,so ,mary took her hand away1 and let the pebble fall freely4 ,it descended as before through the arc1 and then1 by the force which it acquired in moving so far1 it was propelled beyond the lowest point1 and ascended in another curve1 upon the other side1 similar to the first4 ,when the force was expended1 it came back again2 and thus it swung to and fro1 several times1 and at length came almost to a state of rest4 ,there1 said ,mary1 those are the oscillations we are going to experiment upon4 ,yes1 said ,rollo4 ,and first1 said ,mary1 we notice that they are regular4 ,so she swung the pebble again2 and as it moved to and fro1 she counted the oscillations aloud1 beating time with her hand1 down and up1 thus1-- ,one1--two1--three1--four1 c4 ,rollo perceived that they were very regular4 ,now1 first we will endeavor to ascertain by our experiments1 said ,mary1 what the time of the vibrations depends upon4 ,well1 said ,rollo4 ,you see1 continued ,mary1 it swings back and forth with a certain degree of rapidity4 ,now we want to know what this rapidity depends upon1 and then we could make a pendulum so that it would oscillate faster or slower1 just as we pleased4 ,a pendulum8 asked ,rollo4 ,yes1 said ,mary1 we call it a pendulum4 ,any heavy body hung in this manner1 so as to swing back and forth by its weight1 is called a pendulum4 ,so that we are experimenting upon the oscillations of a pendulum4 ,yes1 said ,rollo1 ,i understand4 ,now the question which we are going to examine1 said ,mary1 is1 what the rapidity of the vibrations depends upon4 ,o1 it depends upon the bigness of the pebble1 said ,rollo4 ,how do you know8 said ,mary4 ,why1 of course1 a bigger pebble will be heavier1 and will fall quicker1 and that will make it vibrate faster4 ,that is reasoning about it1 said ,mary1 and what we want to do1 now1 is to experiment4 ,now1 in order to decide it by experiment1 we must try two pendulums1 one with a small pebble1 and the other with a large one4 ,very well1 said ,rollo1 we will2 and then we shall see that the big one will vibrate the quickest4 ,let us think1 first1 what other circumstances there are1 that it may depend upon4 ,i can't think of any thing else1 said ,rollo4 ,why1 there is the nature of the body which we suspend4 ,a piece of cork may oscillate differently from a piece of stone4 ,yes1 said ,rollo1 it will oscillate slower4 ,we must not decide1 said ,mary1 in our own minds1 before we try the experiment4 ,we must leave our minds free to observe the facts1 and wait until we make the experiment1 before we come to any conclusion1 or else we shall not be good experimenters4 ,why not8 said ,rollo4 ,because1 said ,mary1 when persons make up their minds beforehand what the facts will be1 they are very apt not to observe fairly4 ,so good observers or experimenters always take care to keep their minds free and unbiassed4 ,well1 said ,rollo1 and what else is there that the oscillations may depend upon8 ,the length of the string1 replied ,mary4 ,o yes1 said ,rollo1 it may depend upon that4 ,let us see1 continued ,mary4 ,there are three experiments we have already proposed2 a large and a small pebble2 a pebble and a cork2 a long and a short string2 and now there is one more1--a long and short arc4 ,how8 said ,rollo4 ,why1 if ,i draw up the weight1 which forms the pendulum1 pretty high1 it will swing back and forth through a long arc4 ,but if ,i move it only a little way1 it will swing through only a short arc1 and that may make a difference in the length of the vibrations4 ,well1 said ,rollo1 and now let us try4 ,first1 let us see whether we have got all the apparatus we want4 ,here are strings and pebbles1--only we want a cork4 ,i'll go and get one1 said ,rollo4 ,so ,rollo went off towards the house to get the cork4 ,in a few minutes he came back1 saying1 ,i have got the cork4 ,now how shall we begin8 ,first1 replied ,mary1 we will try what effect the weight of the pebble will have upon the oscillations4 ,very well1 said ,rollo4 ,now1 in order to test that1 added ,mary1 we must take two pebble stones1 of different sizes1 and hang them together1 by strings of the same kind1 and of the same length2 and then we must set them a-going exactly together1 and then watch the oscillations4 ,you see that as they will be alike in every respect1 excepting the size of the pebble stones1 whatever difference there is in the mode of vibration will probably be caused by the difference in the size of the stones4 ,is that the way they do it8 said ,rollo4 ,yes1 replied ,mary4 ,whenever we want to know what effect any one circumstance produces1 in such a case1 we always arrange two experiments1 making them very different in respect to the circumstance which we wish to examine1 and as nearly alike as possible in all other respects4 ,i think that is a very good way1 said ,rollo4 ,yes1 replied ,mary1 ,i think it is an excellent way4 ,while ,mary was thus explaining her plan to ,rollo1 she was going on steadily with preparations1 ,rollo standing all the time by her side1 looking on with great interest4 ,mary selected two pebbles4 ,one was as big as a walnut1 and the other about as big as an egg4 ,she tied two of her threads to these stones1 one to each1 and then tied the other ends of these threads to a small branch of the tree which extended horizontally over their heads4 ,they hung down about two feet4 ,she took care so to adjust the strings1 as to have the centres of the stones as nearly as possible on a level4 ,the big one is twice as large1 and so it will go twice as fast1 said ,rollo4 ,we shall see1 said ,mary4 ,she then drew them both carefully out a little way on one side1 and holding them there steadily a moment1 she let them go4 ,they immediately began to swing back and forth1 together4 ,after a few oscillations1 however1 the large stone began to gain a little upon the other1 and seemed to be moving faster4 ,presently it had gained half an oscillation1 i4 e4 when the large one was moving forward1 the small one would be coming back4 ,the big one moves the fastest1 said ,rollo4 ,not much1 said ,mary4 ,no1 said ,rollo1 not much4 ,and ,i don't think it is owing to the difference in the bigness of the stones4 ,what else can it be8 said ,rollo4 ,they are exactly alike in all other respects4 ,not exactly1 said ,mary4 ,we have made them as nearly alike as we could1 but not exactly4 ,there may be a good many little differences that we do not observe4 ,but if the size of the stone would cause any difference in the vibrations1 ,i should think it would make a much greater difference1 for one is twice as big as the other4 ,let us try a very big stone1 said ,rollo4 ,well1 said ,mary4 ,so ,rollo got a stone as large as an orange1 which was as heavy a one as ,mary thought the thread would hold2 and ,mary suspended that from the branch of the tree1 and then swung it in company with the two others4 ,they all went very nearly together at first1 though there was evidently a slight difference1 which1 in a short time1 separated the oscillations1 so that the stones did not keep together2 while yet they each swung back and forth1 in nearly the same time4 ,rollo and ,mary both concluded1 from the result of this experiment1 that the size of the vibrating body did not perceptibly affect the rapidity of the vibrations4 ,now1 said ,mary1 we will try different lengths of string4 ,so she began to look over ,rollo's pebbles1 to find two as nearly as possible alike4 ,the pebble stones must be of the same size1 this time1 for we want the two pendulums to be alike in all respects1 except the length of the string1 for that is the circumstance which we are now going to consider4 ,we will have one string twice as long as the other4 ,mary found two pebbles very nearly equal in size1 and similar in shape4 ,she tied them to two strings1 making one string twice as long as the other4 ,she suspended them as before1 and then1 taking hold of one with one hand1 and the other with the other1 she drew them out to the same distance on one side1 and let them go4 ,the short one began at once to swing back and forth very quick1 while the other followed quite slowly4 ,that makes a difference1 said ,rollo1 clapping his hands4 ,it goes twice as fast1 said ,mary4 ,more than twice as fast1 said ,rollo1 ,i think4 ,let us see1 said ,mary4 ,they set them vibrating again2 but they did not succeed in ascertaining whether the short one went more or less than twice as fast as the other4 ,the two motions1 so rapid and so near together1 confused them4 ,at length1 ,mary proposed that ,rollo should count the vibrations of the long pendulum1 while she counted those of the short one1 and when she had got up to twenty1 she said they would both stop1 and then ,rollo could tell how many he had got in the same time4 ,but this plan1 though apparently a very simple one1 they found it somewhat difficult to put into practice4 ,mary's pendulum puzzled ,rollo's counting1 and ,rollo1 who could not count very well without at least whispering the numbers1 puzzled ,mary1 and so pretty soon they gave it up4 ,rollo then said that he meant to try a very short pendulum indeed1 and he asked ,mary to tie one up for him1 not more than an inch in length4 ,she1 however1 said that it would not be necessary to tie it to the branch2 but1 instead of that1 she took hold of the string of one of the pebbles which was already hanging before them1 about an inch above the pebble itself1 and then set the pebble in motion2 and they were both very much interested in observing how quick it vibrated to and fro4 ,rollo then wanted to try a very long one1 and proposed that he should climb up into the tree1 and tie the end of the string to a high branch4 ,but ,mary was afraid that he would fall2 and besides1 she said that the pendulum would not swing clear of the branches below4 ,she1 however1 immediately thought of the chamber window1 and said that she would try it there4 ,she accordingly went up into her chamber1 taking a large pebble stone with her1 and ,rollo remained below to set the pendulum in motion1 when it should be ready4 ,mary soon appeared at the window1 and ,rollo watched her while she tied her pebble to the end of a thread4 ,have you got your thread long enough8 said ,rollo4 ,it will take a good long thread to reach away down here4 ,it is a whole spool of cotton1 said ,mary4 ,and1 so saying1 she held up in her hand the spool1 to the thread of which she was tying her pebble stone4 ,when it was secured1 she slowly let it down1 until it reached ,rollo's hand1 which was held up from below1 ready to receive it4 ,mary then held the thread steady above1 at a little distance out from the window1 while ,rollo took the stone along the side of the house1 three or four feet from the place where it would naturally hang4 ,he then let it go1 and it swung back very slowly4 ,o1 how slow6 said ,rollo4 ,yes1 said ,mary1 it is very slow1 indeed4 ,i wish you had gone up to the garret window1 said ,rollo4 ,o1 this will do very well1 said ,mary4 ,rollo determined to see how many he could count while the stone made one oscillation to and fro4 ,he counted sixteen4 ,mary then said she was tired of experimenting1 and so she should not come down again4 ,she1 however1 asked ,rollo to set the pendulum swinging1 and that then she would draw the thread in1 and he could see that it would go faster and faster1 the farther she drew it up1 for that would make the string grow shorter and shorter4 ,rollo did so2 and this was the end of the experiments on oscillations4 ,,transcriber',s ,,notes ,the following corrections have been made to the text3 ,page #ad3 ,she looked on with a good dealoriginal omitted this word of interest ,page #cb3 ,what is satiety1 father8original had a single quotation mark instead of the double one ,page #hh3 ,then he stirredoriginal had stirrred it about with his hand ,page #abb3 he took hold of the flower-pot with both his hands1 and slid it suddenly off of the seat4the original had a footnote here1 ,see ,frontispiece4 ,the frontispiece however relates to a different chapter 7,pruning7 and so the footnote has been removed ,page #adi3 and the small endoriginal had and of the magnet would draw the point of the needle