,,rollo',s  ,,philosophy4  ,,air4   ,,! 
,,rollo ,,s]ies ,,is ,,compos$ ,,(      
,,f\rte5 ,,volumes1 ,,viz      ,rollo   
,le>n+ to ,talk4     ,rollo ,le>n+ to   
,read4     ,rollo at ,"w4     ,rollo at 
,play4     ,rollo at ,s*ool4            
,rollo's ,vacation4     ,rollo's        
,exp]im5ts4     ,rollo's ,museum4       
,rollo's ,travels4     ,rollo's         
,correspond5ce4     ,rollo's            
,philosophy--,wat]     ,rollo's         
,philosophy--,air4     ,rollo's         
,philosophy--,fire4     ,rollo's        
,philosophy--,sky4  ,a ,,new ,,edition1 
,,revis$ ,,by ,,! ,,au?or4  ,,bo/on3    
,,phillips1 ,,sampson1 ,,& ,,company    
,ent]$1 accord+ to ,act ( ,congress1 9 !
 ,ye> #ahee1 by ,,phillips1 ,,sampson1  
,,co41 ,9 ! ,cl]k's ,(fice ( ! ,di/rict 
,c\rt ( ! ,di/rict ( ,massa*usetts4     
,,preface4   ,! ma9 design 9 view1 9 !  
discussions :i* are (f]$ to ! juv5ile   
_w1 "u ! title ( ,,! ,,rollo            
,,philosophy1 relates r to _! effect ^u 
! little read]'s habits ( ?9k+1 reason+1

 & obs]vation1 ?an to ! additions !y may
 make to 8 /ock ( k4 ,! b5efit :i* !    
au?or int5ds t ! read] %all d]ive f !m1 
is an influ5ce on ! ca/ ( 8 intellectual
 "*1 :i* is receiv+ its p]man5t =m dur+ 
! ye>s to :i* ^! writ+s are adapt$4  ,! 
acquisition ( k1 h[ev]1 ?\gh 9 ?is case 
a second>y1 is by no means an           
unimportant object2 & ! discussion ( !  
sev]al topics proce$s accord+ly1 )      
regul>ity1 ^u a c]ta9 sy/em (           
classification4 ,?is classification is  
bas$ ^u ! m obvi\s ext]nal prop]ties &  
relations ( matt]1 & less ^u ^? :i*1    
?\gh !y are m ext5sive & g5]al 9 _!     
nature1 &1 !re=e1 m suitable1 9 a       
/rictly-sci5tific po9t ( view1 = !      
f\ndations ( a sy/em1 are less app>5t1 &
 require high] p[]s ( g5]alization &    
ab/raction2 & are1 !re=e1 less 9        
accordance ) ! g5ius & _s ( ! ,rollo    
philosophy4  ,z tea*]s h1 9 "s cases1   
done ! au?or ! honor to introduce "s ( !
 prec$+ works ( ?is class into _!       
s*ools1 z read+ books1 c41 consid]able  

ref]5ce has be5 _h to ?is1 9 ! =m &     
mann] ( ! discussion1 & que/ions h be5  
add$ to facilitate ! use ( ! books 9    
cases :]e p>5ts or tea*]s may make !    
read+ ( !m a regul> ex]cise (           
in/ruction4     ,,cont5ts4       ,,*apt]
 ,i4                      ,page4        
,,lo/ ,,9 ,,! ,,sn[1                  #i
      ,,*apt] ,,ii4     ,,fly+1         
#ai      ,,*apt] ,,iii4     ,,valve     
,,mak+1                     #dj         
,,*apt] ,,iv4     ,,exp]im5ts1          
#ea      ,,*apt] ,v4     ,,pressure1    
#fd      ,,*apt] ,,vi     ,,balloon+1   
#gi      ,,*apt] ,,vii4                 
,,philosophical ,,discussion1           
#id      ,,*apt] ,,viii4     ,,tasks1   
#ajh      ,,*apt] ,,ix4     ,,burn+1    
#aba      ,,*apt] ,x4     ,,gravitation1
                     #adc      ,,*apt]  
,,xi4     ,,air ,,9 ,,motion1           
#aeh      ,,*apt] ,,xii4     ,,air ,,at 
,,re/1                     #agh         
,,*apt] ,i4  ,,lo/ ,,9 ,,! ,,sn[4   ,"o 
pleasant morn+1 v e>ly 9 ! spr+1        

,rollo's c\s9 ,lucy came to call =      
,rollo to g on an exp$ition1 :i* !y _h  
plann$ ! day be=e4 ,x 0 ne> ! end (     
,m>*1 & ! sn[ _h become s consolidat$ by
 ! w>m sun 9 ! days1 & ! h>d fro/s at   
night1 t x w\ld be> ! *ildr5 to walk ^u 
x4 ,! *ildr5 call$ x ! cru/2 b x 0 n1   
/rictly speak+1 a cru/1 = ! sn[ 0       
compact & solid1 n m]ely ^u ! top1 b    
ne>ly ?r\gh\t ! :ole mass1 d[n to !     
gr\nd4  ,rollo & ,lucy 7 go+ to h an    
exp$ition ^u ! cru/4 ,rollo _h a sl$1 & 
!y 7 go+ to put ^u ! sl$ su* ?+s z !y   
%\ld ne$1 & ,rollo 0 to draw x1 :ile    
,lucy & ,na?an1 ,rollo's little bro!r1 7
 to walk along by 8 side4  ,rollo's sl$ 
0 ready at ! back door1 :5 ,lucy came4  
,lucy br\ght ) h] "s provisions = a     
lun*eon1 9 a basket4 ,?is 0 h] "p ( !   
prep>ation4 ,rollo got 8 axe1 & "o or   
two bo>ds a little long] ?an ! sl$1 :i* 
he said 7 to make seats4 ,he also _h a  
t9d]-box1 & "s mat*es1 to enable him to 
make a fire4 ,:5 all ?+s 7 ready1 ! ?ree
 *ildr5 set out toge!r4  ,rollo drew !  

sl$1 ) ! bo>ds1 ! basket1 & "s o!r ?+s  
^u x1 all b\nd toge!r securely ) a cord4
 ,! load appe>$ to be consid]able 9     
bulk1 b x 0 n heavy1 & ,rollo drew x    
along v easily4 ,!y 7 n oblig$ to conf9e
 !mselves to ! roads & pa?s1 = ! sn[ 0  
h>d 9 e direction1 & !y c\ld g ov] !    
fields :]ev] !y pleas$4 ,9 "o place1 :]e
 ! sn[ 0 v deep on ! side ( a hill1 !y  
w5t "r ov] ! top ( a /one wall4  ,x 0 a 
cl\dy day1 b calm4 ,?is 0 favorable4 ,! 
sky be+ ov]ca/1 kept ! sun f ?aw+ ! sn[2
 b yet _! fa!r told !m t probably x w\ld
 beg9 to gr[ s(t be=e !y came home1 &1  
if s1 !y w\ld h to come home 9 a c]ta9  
sl$ road1 :i* ,jonas _h made t w9t] by  
haul+ wood4 ,he advis$ !m n to encamp at
 any great di/ance f ! sl$ road4  ,!y   
came at la/ to a pleasant spot on ! m>g9
 ( a wood1 ne> :]e !re 0 a spr+4 ,!     
rocks ar\nd ! spr+ 7 all cov]$ ) sn[1 & 
! little /ream1 :i* 9 summ] fl[$ f !    
spr+1 0 froz5 & buri$ up entirely out ( 
sight4 ,b ! spr+ itself 0 op51 :i*      
,rollo said 0 v =tunate1 z !y might want

 "s wat] to dr9k4  ,"h !y encamp$4      
,rollo cut "s /akes1 :i* he drove d[n   
into ! sn[1 & contriv$ to make a rude   
sort ( table ) 8 bo>ds4 ,he also cut a  
l>ge numb] ( hemlock bran*es1 :i* ,lucy 
& ,na?an dragg$ out & spread ar\nd !    
table = !m to sit ^u4 ,!n ,rollo built a
 fire ( /icks1 :i* he ga!r$ 9 ! wood4 ,!
 gr\nd 0 cov]$ ) sn[1 s t x w\ld h be5 v
 difficult = him to h f\nd any /icks1 7 
x n t "s k9ds ( trees1 9 ! woods1 h a   
great _m small bran*es ne> ! bottom1 :i*
 are dead & dry4 ,^! ,rollo cut (f1 &   
,lucy & ,na?an dragg$ !m out1 & put !m  
on ! fire :5 he _h k9dl$ x4 ,! fire 0 a 
little way f ! table1 ) ! c>pet (       
hemlock b\ghs betwe54  ,!re 0 a high    
hill cov]$ ) sn[ at a little di/ance1 &1
 aft] !y _h eat5 _! lun*eon1 ,rollo     
said1--  ,o ,lucy1 we w play g up !     
m\nta9s4 ,!re is a hill = u4 ,t %all be 
,*imborazo4  ,well1 said ,lucy1 if y w  
cut u "s long /aves4  ,accord+ly ,rollo 
w5t into ! wood1 & select$ "s tall &    
sl5d] "y trees1 ab\t an in* 9 diamet]1 &

 cut two = ,lucy1 two = ,na?an1 & two = 
himself4 ,^! he trimm$ up smoo?ly1 & ea*
 ( ! *ildr5 took "o 9 ea* h&4 ,!y play$ 
t ,rollo 0 ! guide1 & ,lucy 0 !         
philosoph]4 ,na?an 0 ! philosoph]'s     
s]vant4 ,rollo conduct$ !m safely to !  
summit2 b j aft] !y got !re1 x began to 
sn[4  ,! sn[ desc5d$ 9 l>ge flakes1 &   
,rollo 0 delight$ to see x2 b ,lucy     
seem$ a little anxi\s4 ,%e said t1 if   
!re %\ld be mu* sn[1 x w\ld make x h>d =
 ,na?an to get home1 & %e ?\ght t !y _h 
bett] g d[n ! m\nta9 imm$iately1 & set  
out = home4 ,rollo 0 r unwill+ to g1 b  
he all[$ himself to be p]suad$1 & s !y  
all came d[n ! m\nta9 toge!r4  ,!y pack$
 up _! ?+s z quick z !y c\ld1 leav+ !   
fire to burn itself out1 only ,rollo    
fir/ pil$ on all ! hemlock bran*es1--:i*
 made a great crackl+4 ,! sn[ began to  
fall fa/]4 ,! air 0 full ( ! l>ge       
flakes1 :i* float$ sl[ly d[n1 & lodg$   
g5tly ^u ! old sn[4  ,! *ildr5 w5t along
 v successfully = "s "t1 b at l5g?      
,rollo lo/ 8 way4 ,! air 0 s full (     

sn[-flakes1 t he c\ld see only a v      
little way be=e him2 & ! old sn[ cov]$ !
 gr\nd1 s z to hide all ! old m>ks1 & to
 alt] ! g5]al aspect ( ! fields s mu*1 t
 ,rollo 0 completely lo/4 ,he1 h[ev]1   
did n say any?+ ab\t x1 b w&]$ on1 ,lucy
 & ,na?an wond]+ all ! :ile :y !y did n 
get home2 until at l5g? !y came across a
 track 9 ! sn[4  ,o6 see ?is track1 said
 ,rollo4 ,"h is a track1 :]e somebody   
else has be5 along ) a sl$4  ,yes1 said 
,lucy1 "s boys1 :o h gone out to slide1 
p]haps4  ,! track 0 p>tly oblit]at$ by !
 sn[ :i* _h fall5 ^u x s9ce ! boys t    
made x _h gone along4 ,rollo wond]$ ^:  
track x c\ld be4 ,he said t he ?\ght x v
 probable x 0 ,h5ry's4 ,lucy ?\ght t x  
might be ! track ( "s *ildr51 t _h gone 
out to f9d !m4  ,at any rate1 said      
,rollo1 we w foll[ ! track a little way1
 & see :at x leads to4 ,p]haps we %all  
ov]take ! boys4  ,accord+ly ,rollo turn$
 along 9 ! track1 b ,lucy /opp$4  ,no1  
,rollo1 said %e1 we mu/ g ! o!r way if  
we want to f9d ! boys2--! track is go+ !

 o!r way4 ,b nev] m9d1 %e add$1 ,i don't
 want to f9d ! boys2 ,i want to g home2 
s we w g ?is way4  ,rollo w5t on1       
secretly pleas$ to f9d ! track1 = he    
suppos$ t by retrac+ x1 z he 0 do+1 x   
w\ld lead him back home4 ,he _h1 h[ev]1 
a great curiosity to "k :o c\ld h made  
x2 & 9 fact ! my/]y 0 soon unravel$4    
,=1 aft] foll[+ ! track a %ort di/ance1 
!y saw be=e !m a l>ge1 d>k spot ^u !    
sn[1 &1 on draw+ ne> to x1 to see :at x 
01 !y f\nd x 0 ! place ( _! own         
encampm5t2 & ! track :i* !y 7 foll[+ 0  
_! own track1 lead+ !m back to ! m\ld]+ 
rema9s ( _! own fire4 ,!y _h gone r\nd 9
 a great circle1 & come back ^u _! own  
c\rse4 ,rollo look$ exce$+ly blank &    
confus$ at ?is unexpect$ t]m9ation ( !  
clew1 :i* he _h hop$ 0 to h l$ him out (
 8 difficulty4 ,:at he 0 to d n[1 he did
 n "k4  ,! fact1 h[ev]1 t !y 7 lo/1 0 no
 long] to be conceal$2 & ,lucy propos$ t
 !y %\ld g into ! woods1 :]e ! tops ( ! 
trees w\ld act z a sort ( umbrella1 to  
keep ! sn[ f fall+ ^u !m1 & wait !re    

until x /opp$ sn[+2 & !n ! air w\ld be  
cle>1 & !y c\ld f9d _! way out4  ,o1    
said ,rollo1 ,i c easily make a hut (   
hemlock bran*es1 & we c g into t =      
%elt]4  ,b1 ,rollo1 said ,na?an1 h[ d y 
"k b t x w sn[ all day8 ,we c't /ay 9 ! 
woods all day4  ,no1 said ,rollo2 :5 x  
sn[s 9 great flakes1 x is n go+ to sn[  
long4 ,jonas told me s4  ,s ! *ildr5 w5t
 into ! woods1 & ,rollo began to make 8 
hut2 b he 0 soon int]rupt$1 & ! att5tion
 ( all ! *ildr5 0 call$ (f by a little  
bird1 :i* !y saw !re1 hopp+ ab\t1 &     
appe>+ b5umb$ ) cold4 ,aft] "s ef=t1    
,rollo succe$$ 9 cat*+ h] 9 8 cap4      
,we'll c>ry h] home1 said ,na?an2 we'll 
c>ry h] home1 & %[ h] to "m4  ,yes1 said
 ,rollo1 ,i'll c>ry h] 9 my cap4  ,no1  
said ,lucy1 y mu/ h y\r cap on y\r head1
 or y w take cold4 ,let me c>ry h] 9 my 
h&s4  ,no1 said ,rollo1 y w h to lead   
,na?an4 ,i'll tell y :at we w d4 ,we w  
put h] into ! basket1 = a cage4  ,lucy1 
on ! :ole1 lik$ ?is plan1 & !y accord+ly
 put ! bird 9 ! basket1 & ,rollo        

contriv$ to make a cov] ( b\ghs1 to keep
 h] f gett+ away4  ,by ! "t t ?is 0 all 
arrang$1 ! *ildr5 f\nd1 to _! great     
satisfaction1 t x _h ceas$ sn[+2 & !y   
imm$iately set out = home4 ,rollo drew !
 sl$1 ) ! basket & bird ^u x1 secur$ z  
be=e ) ! cord2 & ,lucy l$ ,na?an4 ,!y n[
 _h no difficulty 9 f9d+ _! way1 & soon 
rea*$ home 9 safety4  ,!y kept ! bird   
until ! next day1 & !n1 z x 0 mild &    
pleasant1 !y let h] fly away4           
,,que/ions4      ,by :at process _h !   
sn[ become h>d5$ at ?is "t8 ,did        
,rollo's fa!r expect t x w\ld cont9ue   
h>d till noon8     ,:y n8 ,did x cont9ue
 h>d8 ,:at prev5t$ its melt+8 ,h[       
did ,rollo get /icks = 8 fire8 ,:at "n  
did he give to !     hill :i* !y asc5d$8
 ,:at occasion$ ! difficulty 9 !     way
 ( ,rollo's f9d+ 8 way home8 ,:at       
conv]sation took     place :5 he f\nd ! 
track8 ,0 ?is track 9 ! new sn[1     or 
9 ! old sn[8 ,h[ _h x become p>tly      
oblit]at$8 ,h[     did !y c>ry ! bird   
home8     ,,*apt] ,,ii4  ,,fly+4        

,na?an became v mu* int]e/$ 9 ! bird1 & 
t ev5+1 z 8 fa!r 0 sitt+ by ! fire1 ) a 
book 9 8 h&1 :i* he _h be5 read+1 ,na?an
 came up to him1 & said1--  ,fa!r1 are y
 busy n[1--?9k+1 or any?+8  ,no1 said 8 
fa!r4  ,because1 said ,na?an1 if y are  
n1 ,i want to read y some?+ out ( my    
little book4  ,s ,na?an's fa!r took him 
up into 8 lap1 & ,na?an op5$ 8 little   
book1 & began to read z foll[s3--       
',) f9s = ! wat]1 & w+s = ! air1     ,& 
feet = ! gr\nd1 ,i c\ld g ev]y:]e4'     
,isn't t funny8 said ,na?an4  ,r funny1 
said 8 fa!r4  ,i wi% ,i _h w+s1 said    
,na?an4  ,:y8 said 8 fa!r4  ,:y1 !n ,i  
c\ld fly4  ,t is n c]ta91 said 8 fa!r4  
,!re are two difficulties :i* prev5t    
boys f fly+4 ,"o is1 !y h no w+s2 & !   
o!r is1 !y h n /r5g? to use !m4  ,o     
fa!r1 said ,na?an1 ,i c\ld use !m2 ,i am
 pretty /rong4 ,i c :eel ,rollo's       
:eelb>r[4  ,8 fa!r smil$4 ,v possibly1  
said he2 b ,i d n ?9k t y w\ld be /rong 
en\gh to use w+s1 ev5 if y _h !m4  ,:y1 
at any rate1 ,i am /rong] ?an a bird1   

said ,na?an4  ,yes1 said 8 fa!r1 y h m  
actual /r5g? ?an a bird1 b n m 9        
proportion to y\r size4 ,y are          
absolutely /rong]1 b n relatively4  ,:at
 d y mean by t8 said ,na?an4  ,:y1 y h  
actually m /r5g? ?an a bird1--a rob91 = 
in/ance2 y c\ld hold him s t he c\ld n  
get away2 & y c\ld lift m ?an he c\ld   
too4 ,b !n y are a great deal l>g]1 & y 
are n z mu* /rong] ?an he is1 z y are   
l>g]4 ,if y are a hundr$ times z heavy z
 he1 y are n a hundr$ times z /rong4    
,t's :at ,i mean by say+ t y are        
absolutely /rong]1 b n relatively4 ,t   
is1 y are n z _m times /rong]1 z y are  
l>g] & heavi]4 ,y are absolutely /rong]1
 b n relatively2 t is1 9 proportion to  
y\r size & weight4  ,n[ ,i c prove to y1
 cont9u$ 8 fa!r1 t y w\ld n be /rong    
en\gh to fly ) w+s1 ev5 if y _h !m4     
,suppose !re 0 a pole fa/5$ across !    
room1 & ano!r pole j above x2 c\ld y    
pull y\rself up1 f "o pole to ! o!r1 by 
y\r h&s alone1 )\t t\*+ y\r feet8--,or a
 ladd]1 cont9u$ 8 fa!r1--x w be bett] to

 suppose a ladd]4 ,n[1 if !re 0 a ladd] 
lean+ up aga9/ a build+1 c\ld y climb up
 on ! "u side by y\r h&s1 draw+ y\rself 
up1 h& ov] h&1 )\t t\*+ y\r feet8  ,"h  
,rollo1 :o 0 read+ 9 a little *air at ! 
back "p ( ! room1 :5 8 fa!r fir/ comm5c$
 ! conv]sation ) ,na?an1 b :o _h be5    
li/5+ = a few m9utes pa/ to :at 8 fa!r  
_h be5 say+1 jump$ up1 & came across !  
room to 8 fa!r1 & said1--  ,yes1 sir1   
yes1 sir2 ,i c4 ,i h done x (t5 9 ! b>n4
  ,h[ high up c\ld y g8 said 8 fa!r4    
,o1 almo/ up to ! l(t1 said ,rollo4     
,only1 y see1 fa!r1 ! r\nds are too f>  
up4 ,i c't rea* up v well4 ,if !y 7 ne>]
 toge!r1 ,i c\ld climb up s1 v well4    
,well1 said 8 fa!r1 a bird1 :5 fly+1 has
 to climb up 9 mu* ! same way4 ,he has  
to pull himself up by ! air1 ) 8 w+s1 j 
z y d ) y\r h&s & arms1 by ! r\nds ( !  
ladd]2 only ! air is n fix$1 l ! ladd]1 
b con/antly gives way "u 8 w+2 & s1 to  
make ! case ! same1 y mu/ suppose t !   
ladd] is n firm1 b is float+ 9 ! air1 & 
s9ks d[n ) y\r weight1 s t y h to climb 

up fa/] ?an y pull ! ladd] d[n4 ,d y ?9k
 y w\ld h /r5g? en\gh 9 y\r arms to d t8
  ,rollo & ,na?an look$ v mu* int]e/$ 9 
:at _! fa!r 0 say+1 b !y bo? admitt$ t  
!y c\ld n climb up su* ladd]s z ^?4  ,! 
air1 add$ _! fa!r1 gives way cont9ually 
"u ! bird's w+2 & yet !y h to pull      
!mselves up by x4 ,& ?is is v h>d4 ,!y  
mu/ ei!r h v l>ge w+s1 & prodigi\s /r5g?
 to use !m1 s z to pull ^u ! air ) v h>d
 & heavy /rokes1 or else1 if !y h small 
w+s1 !y mu/ h /r5g? to /rike v quick &  
(t5 ) !m4  ,! w+s ( sp>r[s move s quick1
 t y _c c\nt ! /rokes2 & ^? (           
humm+-birds1 :i* are small] /ill1 s fa/ 
t y _c see !m4 ,!y make a hum4  ,i c\ld 
make my w+s g s fa/1 said ,na?an2 & he  
began to imitate ! flapp+ ( ! w+s ( a   
bird1 ) 8 arms1 z rapidly & =cibly z he 
c\ld4  ,s c ,i1 said ,rollo2 & he made !
 same motions4 ,t is z fa/ z cr[s' w+s  
move1 :5 !y are fly+4  ,yes1 said 8     
fa!r1 cr[s move _! w+s z fa/ z t1 :]eas 
y only move h&s & arms4 ,if y _h great  
w+s1 z long1 9 proportion1 z ! cr[s1 y  

c\ld n move !m s fa/4  ,h[ l>ge w\ld !y 
be8 said ,rollo4  ,o1 ,i don't          
"k1--p]haps z big z ! top ( ! d9+-table4
  ,o fa!r1 said ,rollo1 ,i don't ?9k !y 
w\ld be z big z t4 ,! cr['s w+s are n   
long] ?an 8 body1 & s m9e w\ld n be     
long] ?an my body4  ,p]haps y nev] saw a
 cr['s body1 said 8 fa!r4 ,8 fea!rs & 8 
tail1 :i* are v light1 swell out 8 body1
 & make x appe> mu* l>g] ?an x really   
is4 ,i presume 8 w+s1 :5 !y are spread1 
are twice or ?ree times z long z 8 body4
 ,if y _h w+s 9 proportion1 x w\ld be ) 
! utmo/ difficulty t y c\ld use !m at   
all4 ,y c]ta9ly c\ld n /rike ! air ) !m 
fa/ en\gh to pull y\rself up by !m4  ,i 
did n ?9k t ! birds pull$ !mselves up by
 ! air1 said ,na?an4 ,i did n "k t ! air
 0 any?+ real4  ,o yes2 x is some?+     
real1 said 8 fa!r4  ,i've se5 birds fly 
)\t mov+ _! w+s at all1 said ,rollo4    
,yes1 said 8 fa!r1 & s h ,i se5 a /one4 
,a /one6 repeat$ ,rollo4  ,:at1 a /one  
fly8 said ,na?an4  ,yes1 repli$ 8 fa!r2 
did y nev] see a /one fly ?r\gh ! air1  

)\t any w+s at all8  ,:y1 yes1 said     
,rollo1 :5 somebody ?rew x4  ,v well1   
said 8 fa!r4 ,if y set ! /one 9 motion1 
x w cont9ue 9 motion = "s "t1 )\t any   
w+s2 & s w a bird4  ,b1 fa!r1 !y don't  
?r[ birds1 said ,na?an2 & he laugh$ al\d
 at su* an idea4  ,birds ?r[ !mselves1  
said 8 fa!r2 t is1 !y /rike _! w+s ^u ! 
air1 h>d & quick1 & ?us get into v quick
 motion1 & !n !y c keep _! w+s /ill = a 
"t1 & g on1 z long z ! impulse !y h giv5
 !m la/s4 ,?is %[s :at prodigi\s /r5g?  
!y h 9 _! w+s4 ,!y c n only /rike ! air 
h>d & frequ5tly en\gh to raise !mselves 
up1 & move along1 b !y c d x s easily1 z
 to get su* a velocity1 t !y c re/ _!   
w+s = "s "t1 & sail away ?r\gh ! air1   
only exp5d+ ! impulse !y _h accumulat$4 
,rollo & ,na?an 7 sil5t4 ,rollo 0 ?9k+  
h[ he _h se5 ! swall[s sail+ swiftly    
r\nd & r\nd 9 ! air1 ) _! w+s spread out
 motionless by _! side4  ,s1 y see1     
cont9u$ 8 fa!r1 ! difficulty 9 ! way ( a
 boy's fly+1 is n ! want ( w+s1 b ! want
 ( /r5g? to use !m4 ,x w\ld be v easy to

 make w+s4  ,w\ld x8 said ,na?an4  ,yes1
 said 8 fa!r4 ,at lea/ x w\ld n be v    
difficult4 ,+5i\s me*anics w\ld soon f9d
 out modes ( mak+ some?+ to answ] !     
purpose ( w+s1 to /rike ^u ! air1 if !re
 0 ! necess>y p[] to "w !m4 ,! great    
difficulty 9 almo/ all cases 9 me*anics 
is1 9 gett+ ! p[]2 !re is v little      
difficulty 9 apply+ x to any purpose x  
is want$ =4 ,s1 y see1 next "t1 ,na?an1 
:5 y want to fly1 y mu/ wi%1 n t y _h   
w+s1 b t y 7 /rong en\gh to use !m4     
,well1 fa!r1 said ,rollo1 m5 are /rong  
en\gh to paddle !mselves along 9 ! wat]2
 :y c't !y 9 ! air8  ,because1 said 8   
fa!r1 wat] supports !m by its buoyancy1 
& !y h no?+ to d b to move !mselves     
along ^u x4 ,b air _c support !m2 &1 (  
c\rse1 a great "p ( ! ef=t :i* !y w\ld  
make1 w\ld be requir$ to keep !m up4 ,& 
!n1 besides1 ! wat] is g5]ally ne>ly at 
re/1 b ! air is g5]ally 9 a /ate ( rapid
 motion4  ,:y1 fa!r1 said ,rollo1 ,i'm  
sure wat] is sometimes 9 rapid motion4  
,! riv]s run v swiftly1 (t54  ,yes1     

repli$ 8 fa!r2 b !n1 :5 !y d1 m5 _c     
paddle1 or r[ boats ^u !m4 ,a curr5t t  
%\ld run at ! rate ( f\r or five miles  
an h\r1 w\ld be v h>d to r[ aga9/4 ,b ! 
air is seldom 9 a /ate ( less motion ?an
 t4 ,x is v (t5 mov+ at ! rate ( fifte5 
or tw5ty miles an h\r2 sometimes sixty4 
,s1 y see1 !re is a d\ble reason :y m5  
_c fly 9 ! air1 z well z paddle on !    
wat]4  ,if we 7 only light en\gh1 said  
,rollo1 to float 9 ! air1 !n we c\ld    
fly4  ,we c\ld paddle ab\t 9 x1 :5 x 0  
calm1 repli$ 8 fa!r1 b t w\ld n be fly+4
  ,is !re any?+ light en\gh to float 9 !
 air8 said ,rollo4  ,no1 said 8 fa!r1 ,i
 don't ?9k ( any visible sub/ance t is4 
,:at d y mean by visible sub/ance8 said 
,na?an4  ,:y1 any?+ t y c see1 repli$ 8 
fa!r4 ,!re are "s o!r k9ds ( air1 :i*   
are light] ?an common air1 b !re is no?+
 else1 s f> z ,i "k4  ,:y1 fa!r1 !re are
 cl\ds4 ,!y float1 & !y are visible1 ,i 
am sure4  ,yes1 said 8 fa!r4 ,!re is "s 
my/]y ab\t ! float+ ( cl\ds4 ,i don't   
fully und]/& x4 ,cl\ds are =m$ ( small  

globules or little balls ( wat]2 & wat]1
 ,i %\ld ?9k1 :atev] ! size ( ! little  
drops might be1 w\ld be heavi] ?an air4 
,& yet !y seem to float4 ,if !y are     
l>ge1 l ra9 drops1 !y fall quickly to ! 
gr\nd4 ,if !y are small1 l mi/1 !y fall 
sl[ly4 ,t ,i %\ld expect4 ,if !y are f9]
 /ill1 l vapor or fog1 ,i %\ld ?9k t !y 
w\ld fall /ill m sl[ly2 b /ill ,i %\ld  
suppose t !y w\ld desc5d4 ,b !y d n     
appe> to desc5d2 !y seem to float1 ne>ly
 at re/2 ?\gh p]haps all ! cl\ds we see1
 may be sl[ly desc5d+ all ! "t1 :ile we 
d n p]ceive x4  ,! smoke goes up f ! top
 ( ! *imney1 said ,rollo4  ,yes1 said 8 
fa!r1 !re is no difficulty ab\t t4 ,!   
vapor f a fire is c>ri$ up by ! w>m air1
 no d\bt4 ,air swells :5 x is heat$1 & s
 becomes light]1 & rises2 & ! hot air f 
! top ( ! *imney c>ries ! vapor up ) x1 
no d\bt4 ,aft] x rises a little way1 &  
becomes cool1 x ceases to asc5d1 b      
floats away horizontally4 ,p]haps x     
beg9s to desc5d :5 x gets cool1 ?\gh v  
sl[ly2 & p]haps all cl\ds are really    

desc5d+ all ! "t1 ?\gh too sl[ly = u to 
p]ceive ! motion4  ,only1 said ,rollo1  
aft] a little "t1 !y w\ld get d[n to !  
gr\nd4  ,p]haps n1 said 8 fa!r2 =1 :5 !y
 get d[n ne>] ! e>?1 :]e x is w>m1 !y   
may be gradually dissolv$1 & disappe>1 &
 ?us nev] rea* ! e>?4 ,i %\ld ?9k !y    
w\ld desc5d1 be+ compos$ ( globules (   
wat]1 :i*1 h[ev] small1 mu/1 ,i %\ld    
?9k1 be heavi] ?an air4  ,a soap bubble 
w float 9 ! air1 said ,rollo4  ,i nev]  
saw "o t w\ld1 said 8 fa!r1 unless x got
 into a curr5t1 :i* c>ri$ x up4 ,a soap 
bubble--make x ev] s ?9--%[s a t5d5cy to
 desc5d1 unless y put x out 9 ! op5 air1
 :]e !re are curr5ts to c>ry x up4 ,x   
desc5ds v sl[ly1 b /ill x desc5ds4 ,x is
 heavi] ?an ! air4 ,i am n absolutely   
c]ta91 b ,i believe !re is no visible   
sub/ance t is light] ?an ! air2 & x is v
 well = u !re is n4  ,:y1 fa!r8 said    
,rollo4  ,because1 if !re 7 any1 !y w\ld
 imm$iately rise f ! e>?1 & float       
upw>ds1 till !y got up :]e ! air 0 s    
light & ?91 t !y c\ld n g up any high]4 

,& s1 said ,rollo1 we %\ld lose !m4  ,t 
w\ld n be all1 said 8 fa!r4 ,!y w\ld    
float ab\t1 above u1 &1 if !re 7 en\gh (
 !m1 !y w\ld =m a p]petual cl\d ov] our 
heads1 to keep out ! sun1 & to make ! _w
 d>k & gloomy4 ,!re seems to h be5 no   
way to keep all ! solid & visible       
sub/ances ( ! e>? d[n ^u its surface1 b 
to make !m all heavi] ?an ! air4  ,&    
?us1 cont9u$ 8 fa!r1 all solid sub/ances
 be+ heavi] ?an ! air1 !y s9k 9 x1 l    
/ones or iron 9 wat]4 ,only ^? t are v  
mu* exp&$ 9 surface1 s9k v sl[ly1 &     
sometimes almo/ seem to float4  ,:at d y
 mean by exp&$1 fa!r8 said ,na?an4      
,spread out1 said 8 fa!r4 ,an umbrella1 
= example1 :5 x is spread out1 is said  
to be exp&$2 o!r ?+s are exp&$ 9 a      
little diff]5t way4 ,a fea!r is exp&$1 t
 is1 x is spread out 9 f9e filam5ts1 :i*
 ext5d1 9 e direction1 into ! air1 all  
ar\nd ! /em ( x4 ,?+s t are exp&$ take a
 great deal ( air ) !m :5 !y desc5d1 & s
 c only desc5d sl[ly4  ,& wat] is exp&$ 
9 a soap bubble1 said ,rollo4  ,yes1    

repli$ 8 fa!r1 & !re is a great deal (  
air includ$ 9 x1 :i* all has to be      
br\ght d[n :5 ! bubble itself desc5ds4  
,& ?us1 y see1 ! bubble mu/ desc5d      
sl[ly4 ,wat] is exp&$1 too1 9 cl\ds2 =1 
9 t case1 x is divid$ into millions (   
small p>ticles1 by :i* x is spread out  
ov] a great deal ( air1 & _c desc5d )\t 
br++ a l>ge portion ( ! air ) x4 ,m5 h  
contriv$1 on ?is pr9ciple1 to make an   
app>atus to prev5t be+ hurt by fall+ f  
great heights4  ,:at is x8 said ,rollo4 
,:y1 x is call$ a p>a*ute4 ,x is a sort 
( umbrella2 9 fact1 x is an umbrella1   
only made v l>ge4 ,x is fold$ up1 &     
fa/5$ "u a balloon1 j ov] ! c>1 :i* !   
man is 94 ,!n1 if ! balloon bur/s1 or   
any o!r accid5t happ5s to x1 & ! man    
beg9s to fall1 ! p>a*ute op5s & spreads1
 & !n ! man falls v sl[ly4 ,! reason is1
 t ! p>a*ute takes hold ( a l>ge mass ( 
air1 & br+s x d[n ) x2 & s x _c desc5d v
 fa/4         99       99       99      
99       99  ,a few days aft] ?is1      
,na?an said to ,rollo1 z !y 7 play+ 9 ! 

y>d1 t he wi%$ t he _h a p>a*ute4  ,i "k
 :]e !re is "o1 said ,rollo4  ,a        
p>a*ute1 said ,na?an2 a real p>a*ute8   
,yes1 said ,rollo1 or1 :at is ! same ?+1
 a great umbrella4  ,is t j ! same8 said
 ,na?an4  ,yes1 said ,rollo2 = fa!r said
 t a p>a*ute 0 9 fact only a l>ge       
umbrella2 & fa!r has got a l>ge umbrella
 9 ! closet1 & ,i h a great m9d to g &  
get x = a p>a*ute4  ,b y hav5't got any 
balloon1 said ,na?an4  ,o1 no matt] = t1
 said ,rollo4  ,!n h[ are y go+ to get  
up into ! air8 ask$ ,na?an4  ,:y1 ,i c  
climb up on ! %$1 & jump (f t1 & hold ! 
umbrella ov] my head4  ,j at ?is mom5t1 
,rollo's c\s9 ,james came into ! y>d1 & 
,rollo ran to him1 to expla9 to him ab\t
 ! p>a*ute4 ,aft] describ+ to him !     
con/ruction ( x1 & its use by m5 :o g up
 9 balloons1 he said he 0 go+ to get 8  
fa!r's umbrella1 :i* w\ld make an       
excell5t p>a*ute4  ,& !n1 cont9u$ he1 ,i
 am go+ to get ^u "s high place1 & jump 
(f1 & hold ! p>a*ute ov] my head1 & !n  
,i %all come d[n z light z a fea!r4  ,o 

,rollo1 said ,james1 ,i don't believe y 
w4  ,yes ,i %all1 said ,rollo3 y see !  
p>a*ute is exp&$1 & s br+s d[n a great  
deal ( air ) x1 & ?is makes x come v    
sl[ly4 ,air is a real ?+1 ,james1 & x   
keeps ! p>a*ute back a great deal4      
,illu/ration3 ,james & ,na?an bo? ran   
t[>ds him1 ?9k+ t he mu/ be hurt4--,page
 #cg4  ,s ,rollo ran (f aft] ! umbrella1
 v mu* int]e/$ 9 prov+ to ,james1 by    
actual exp]im5t1 t ! air 0 a real ?+4   
,:5 he came ) x1 he 0 himself incl9$ to 
make ! fir/ exp]im5t f ! l[ side ( ! %$4
 ,he c\ld climb up1 by means ( a f5ce at
 ! corn]4 ,james advis$ him1 h[ev]1 to  
try x fir/ f ! end ( a woodpile1 :i* 0  
pretty high1 b yet n s high z ! %$4     
,james 0 n q sure t ! exp]im5t w\ld     
succe$1 & he 0 afraid t ,rollo might get
 hurt4  ,rollo said t he 0 n afraid to  
jump (f ! %$4 ,he knew ! p>a*ute w\ld   
be> him up4 ,he did n believe b t he    
c\ld jump (f ! h\se ) x2 &1 at any rate1
 he c\ld jump (f ! %$1 he knew4 ,he     
accord+ly clamb]$ up1 &1 tak+ 8 /ation  

^u ! eaves1 he spread ! umbrella ov] 8  
head1 & !n jump$ (f4  ,d[n he came )    
great viol5ce2 8 cap flew (f 9 "o       
direction1 & 8 umbrella roll$ away 9    
ano!r1 z he _h to put out bo? 8 h&s1 to 
save himself1 :5 he rea*$ ! gr\nd4 ,z x 
01 he came d[n ^u all f\rs1 & 9 su* a   
way1 t ,james & ,na?an bo? ran t[>ds    
him1 ?9k+ t he mu/ be hurt4  ,did y hurt
 y\rself1 ,rollo8 said ,james4  ,no1    
said ,rollo1 n mu*4  ,i don't ?9k !     
umbrella did y mu* good4  ,no1 said     
,rollo1 z he got up rubb+ 8 elb[s1 x    
didn't1 & ,i don't see :at ! reason is4 
,y came d[n j z h>d z y w\ld )\t x4     
,yes1 said ,na?an1 & he almo/ broke 8   
back2 ,i don't believe ! air is any real
 ?+ at all4  ,! fact 01 t ! umbrella did
 d "s good4 ,rollo did n come d[n q s   
h>d z he w\ld h done )\t x4 ,x ret>d$ 8 
desc5t a little4 ,b x 0 n l>ge en\gh to 
enable him to desc5d 9 safety4 ,:5 8    
fa!r said t a p>a*ute 0 9 fact only a   
l>ge umbrella1 he meant a great deal    
l>g] ?an ,rollo _h suppos$4 ,a p>a*ute1 

su* z is us$ ) balloons1 is a great deal
 l>g] ?an any umbrella t ev] 0 made4    
,,que/ions4      ,:at 0 ,na?an's wi%1   
aft] he _h read 8 fa!r some?+     out ( 
8 book8 ,did he ?9k t he c\ld fly if he 
_h     w+s8 ,did 8 fa!r ?9k s8 ,:at     
defici5cy did 8 fa!r     ?9k 0 ev5 m    
important ?an t ( w+s8 ,did ,na?an      
?9k t a boy 0 /rong] ?an a bird8 ,is a  
boy absolutely     /rong] ?an a bird8   
,is he relatively /rong]8 ,:at is !     
mean+ ( relatively /rong]8 ,w\ld a man  
be /rong en\gh     to "w w+s t 7        
suffici5tly l>ge to be> him up into     
! air8 ,w\ld !re be any great difficulty
 9 con/ruct+     w+s = him if he 7 /rong
 en\gh8      ,is any visible sub/ance   
light] ?an air8 ,:at w\ld be !          
consequ5ce if any ( ! loose sub/ances   
ab\t ! e>?'s     surface 7 light en\gh8 
,:at are cl\ds compos$ (8 ,:at          
difficulty did ,rollo's fa!r po9t out1 9
 reg>d to _!     float+ 9 ! air8 ,:at is
 a p>a*ute8 ,describe ,rollo's          
exp]im5t ) ! umbrella4     ,,*apt]      

,,iii4  ,,valve ,,mak+4   ,"o morn+1 :5 
,rollo awak$1 he he>d a %>p click+ aga9/
 ! w9d[4  ,na?an1 said he1 ,na?an1 ,i   
believe !re is a sn[-/orm4  ,b ,na?an 0 
too sleepy to he> or und]/&4  ,rollo    
look$ up1 b !re 0 a curta9 aga9/ ! w9d[1
 & he c\ld n see v well4 ,he li/5$4 ,he 
he>d a l[1 moan+ s\nd made by ! w9d1 & a
 cont9uance ( ! %>p click+ :i* he _h    
he>d at fir/4  ,:5 he _h got up1 &      
dress$ himself1 he f\nd t !re 0 a viol5t
 sn[-/orm4 ,at fir/ he 0 glad ( x1 = he 
lik$ sn[-/orms4 ,b !n1 pretty soon1 he 0
 sorry1 = x _h be5 w9t] a long "t1 & he 
0 impati5t = ! spr+4  ,aft] breakfa/1 he
 & ,na?an read & /udi$ = two h\rs1 "u _!
 "m's direction4 ,:5 !y 7 releas$ f ^!  
duties1 ,rollo propos$ to ,na?an t !y   
%\ld g out into ! %$1 & see h[ ! /orm   
came on4 ,!re 0 a l>ge door 9 ! %$1 op5+
 t[>ds ! /reet1 :]e !y c\ld /&1 protect$
 f ! w9d1 & see ! drifts ( sn[4  ,!y    
accord+ly put on _! caps1 & w5t4 ,!y    
f\nd t ! sn[ 0 pretty deep4 ,x 0 heap$  
up ^u ! f5ce & aga9/ ! w9d[s2 & !re 0 a 

curi\s-%ap$ drift1 ) ! top curl$ ov] 9 a
 s+ul> mann]1 runn+ along f ! corn] ( ! 
%$ t[>ds ! g>d5 gate4  ,ah1 says ,rollo1
 :5 x cle>s up1 ,i mean to g & wade     
?r\gh x4  ,& ,i too1 said ,na?an4  ,o   
,na?an1 said ,rollo1 x is ov] y\r head4 
,h>k6 said ,na?an2 :o is t p\nd+ 9 !    
b>n8  ,x is ,jonas1 ,i suppose1 said    
,rollo4 ,i mean to g out & see :at he is
 do+4  ,h[ are y go+ to get !re8 said   
,na?an4  ,o1 ,i c put on my boots1 said 
,rollo1 & g "r out ?r\gh ! sn[4  ,i wi% 
,i c\ld g1 said ,na?an4  ,well1 said    
,rollo1 ,i c c>ry y on my back4  ,na?an 
clapp$ 8 h&s at ?is proposal1 be+ d\bly 
pleas$ at ! prospect ( bo? gett+ into ! 
b>n to see :at ,jonas 0 do+1 & also (   
hav+ a ride1 on ! way4  ,s ,rollo put on
 8 boots1 :ile ,na?an w5t & got ,rollo 8
 /raps1 to fa/5 8 pantaloons ar\nd !m4  
,:5 all 0 ready1 ,rollo sat d[n ^u ! /ep
 ( ! door1 9 ord] t ,na?an might get on 
easily4  ,we'll play t ,i am a camel1   
said ,rollo1 & t ,i'm kneel+ d[n = y to 
get on4  ,d camels kneel d[n1 said      

,na?an1 :5 ! m5 want to ride8  ,yes1    
said ,rollo2 & s say+1 he rose          
labori\sly1 ) 8 heavy burd5 ^u 8 %\ld]s4
 ,he /agg]$ along ) "s difficulty1 b yet
 safely1 until he came to ! great drift2
 &1 aft] wall[+ into ! mid/ ( x1 he lo/ 
8 balance1 & bo? camel & driv] roll$ ov]
 toge!r into ! sn[4 ,! sn[ got up "u    
,na?an's sleeve1 & he began to cry4  ,o 
,na?an1 said ,rollo1 don't cry4 ,i'll   
run & get ,jonas to come & c>ry y 94  ,s
 ,rollo ran into ! b>n1 & call$ to      
,jonas to come quick4 ,jonas laid d[n 8 
hamm] ^u ! b5*1 & foll[$ ,rollo4 ,he    
f\nd ,na?an 9 ! sn[1 & took him up 9 8  
arms1 & c>ri$ him into ! b>n4  ,z soon z
 he got him "u cov]1 he bru%$ ! sn[ (f1 
& told him n to cry4 ,i've got a fire 9 
! %op1 said he1 & y %all see me d my "w4
 ,i'm m5d+ ! bell[s4  ,s he l$ ,na?an   
?r\gh ! b>n1 & !nce along "u a %$ to a  
sort ( %op-room1 :]e !re 0 a l>ge       
fireplace & a fire4 ,rollo put on "s    
/icks1 :i* made a great blaze2 & s      
,na?an soon got w>m & dry1 & =got all 8 

tr\bles4 ,!n ,jonas sat him up1 ^u a    
high /ool1 ne> ! b5*1 :]e he c\ld see   
him "w4 ,he 0 j draw+ out "s ( ! nails1 
by :i* ! lea!r ( ! bell[s 0 nail$ to !  
sides4  ,:at is ! matt] ) ! bell[s8 said
 ,na?an4  ,! valve is out ( ord]1 repli$
 ,jonas4  ,! valve1 repeat$ ,na?an2 :at 
is ! valve8  ,! valve is a k9d ( clapp]1
 said ,jonas4 ,i w %[ x to y 9 a few    
m9utes4  ,s ,jonas proce$$ to take (f ! 
lea!r f "o ( ! sides ( ! bell[s4 ,!re 0 
a hole 9 "o ( ! sides1 b no hole 9 !    
o!r4 ,na?an _h (t5 notic$ ! hole1 b he  
did n "k :at x 0 =4  ,:at is ! hole =8  
said ,na?an4  ,t is to let ! air 91 said
 ,jonas4  ,:at d !y want ! air to come 9
 =8 said ,na?an4  ,to make w9d (1 said  
,jonas4  ,d !y make w9d out ( air8 said 
,na?an4  ,yes1 said ,jonas1 !y get !    
bell[s full ( air1 & !n bl[ x out ?r\gh 
! nose1 & t makes w9d4  ,w9d is air1 put
 9 motion1 said ,rollo4 ,i read x 9 a   
book4  ,by ?is "t1 ,jonas _h tak5 (f !  
lea!r s f> t ,na?an c\ld see into !     
bell[s4 ,he saw t !re 0 a little clapp] 

ov] ! hole1 9 "o ( ! sides ( ! bell[s4  
,is t ! valve8 said he to ,jonas4  ,yes1
 said ,jonas4  ,:at is x =8 said ,na?an4
  ,x is to keep ! w9d f com+ out ( t    
hole4  ,:y don't !y want ! w9d to g out 
( t hole8 said ,na?an4  ,because1 said  
,jonas1 !y want x to g to ! fire1--to   
bl[ ! fire4  ,y see1 said ,rollo1 x c't 
g out ( ! hole1 & s x has to g out ( !  
long nose1 :i* is po9t$ t[>ds ! fire4   
,:at makes x g out at all8 said ,na?an4 
,:y1 :5 we bl[ ! bell[s1 we press ! two 
sides toge!r1 & t presses ! w9d out4 ,x 
c't g out ( ! hole :5ce x came 91       
because ! clapp] /ops x up1 & s x goes  
out ! long nose1 "r into ! fire1 & makes
 ! fire burn4  ,by ?is "t1 ,jonas _h got
 ! lea!r (f s f>1 t he c\ld get at !    
clapp] to m5d x4 ,he told ! boys t x 0  
old & worn out1 & he mu/ make a new "o4 
,h[ are y go+ to make x8 said ,rollo4   
,y'll see1 said ,jonas1 if y wat* me    
closely4  ,s ,jonas took "s lea!r1 & cut
 out a piece1 ( an oblong %ape1 a little
 wid] ?an ! hole1 & ab\t twice z long4  

,!n he laid ?is d[n ov] ! hole4 ,x cov]$
 x entirely4 ,!n he took "s small c>pet 
nails1 & nail$ "o ( ! ends ( ! lea!r d[n
 to ! bo>d4 ,!n ,jonas put 8 h& d[n "u !
 bo>d1 & run "o ( 8 f+]s up ?r\gh !     
hole1 & pu%$ ! lea!r up a little way4   
,!re1 said he to ! boys1 y see ,i h     
nail$ ! lea!r1 s t1 :5 x lies d[n 9 its 
place1 x cov]s ! hole completely2 & yet 
,i c pu% x up a little ) my f+]s1 s t   
!re w be an op5+4  ,!n ,jonas cut a     
small lea!r /rap1 & nail$ "o end ( x d[n
 ^u "o side ( ! clapp]1 & ! o!r end ^u !
 o!r side ( ! clapp]4 ,he put "o little 
c>pet nail into ea* end ( ! /rap4 ,!    
/rap1 :5 x 0 nail$1 pass$ directly      
across ! clapp] or valve4 ,x 0 n drawn  
tight across1 b x lay ^u ! clapp]       
loosely4 ,! ends 7 nail$ tight1 b !     
middle re/$ loosely ^u ! clapp]4  ,n[1  
said ,jonas1 ,i c pu% ! clapp] up a     
little way1 b ,i c't pu% x f>4 ,! /rap  
keeps x f com+ up f>4  ,b :y1 said      
,na?an1 d y want x to g up at all8  ,to 
let ! air 91 said ,jonas4 ,:5 ,i get !  

lea!r all nail$ on aga91 ,i'll %[ y !   
:ole op]ation ( x4  ,& y c be tell+ u   
ab\t x 9 ! mean "t1 said ,rollo4  ,well1
 !n1 said ,jonas1 :5 ,i lift up ! upp]  
side ( ! bell[s by ! h&le1 to bl[1 ! air
 comes 9 by ! hole4 ,! clapp] lifts up a
 little way1 & lets x 94 ,!n1 :5 ,i     
press d[n ! h&le aga91 x presses ! air  
out ?r\gh ! nose1 because x c't g back  
?r\gh ! valve hole4  ,:y n8 said ,na?an4
  ,because1 said ,jonas1 ! valve falls  
d[n ov] ! hole1 & /ops x up4 ,x is made 
s z to lift up easily1 & !n to fall d[n 
& cov] ! hole exactly1 & prev5t ! air   
go+ out ! same way x came 94 ,s1 z x _c 
get out by ! valve1 x has all to g out  
?r\gh ! nose4 ,if ! nose 7 /opp$ up1 x  
c\ld n get out at all4  ,& :at !n8 said 
,rollo4  ,:y1 !n1 repli$ ,jonas1 y c\ld 
n br+ ! two sides ( ! bell[s toge!r     
aga94 ,! air betwe5 w\ld keep !m ap>t4  
,i %\ld l to try1 said ,rollo4  ,well1  
said ,jonas2 & !re are "s o!r exp]im5ts 
y may p]=m ) x too4  ,at l5g?1 ,jonas   
said t he _h got ! lea!r all nail$ on1 &

 !y might try ! exp]im5t4 ,he took hold 
( ! nose ( ! bell[s1 & held 8 ?umb ne> !
 end ( x1 ready to /op up ! hole4  ,n[1 
,na?an1 y may take hold ( ! h&les1 &    
pull !m ap>t z if y 7 go+ to bl[4       
,na?an did s4 ,he pull$ ! h&les ap>t1 & 
held !m op54  ,n[1 said ,jonas1 ,i w /op
 up ! nose1 & ! valve w close itself2 & 
!n y w f9d t y _c br+ ! sides toge!r    
aga94  ,s ,jonas put 8 ?umb ov] ! hole1 
& told ,na?an to bl[4  ,na?an press$    
h>d1 & ! sides came toge!r aga91 ab\t z 
easily z usual4  ,:at6 exclaim$ ,jonas )
 surprise4 ,he did n "k :at to make ( ! 
failure ( 8 exp]im5t4  ,!re mu/ be a    
leak some:]e1 said he4 ,& he took !     
bell[s out ( ,na?an's h& to look = x4   
,he f\nd !re 0 a corn]1 on ! side       
opposite to ! "o :]e he _h be5 work+1   
:]e ! lea!r 0 op51 he hav+ =gott5 to    
nail x d[n4  ,ah6 said he1 "h is !      
difficulty4 ,:5 ,i h nail$ ?is d[n1 we w
 try aga94  ,is t a leak8 said ,na?an4  
,yes1 said ,jonas4 ,:5 y work$ ! bell[s1
 y press$ ! air all out ?r\gh !re4 ,i   

did n "k t t 0 op54 ,let me nail ?is    
d[n1 & !n we w beg9 our exp]im5t        
regul>ly4       ,,que/ions4      ,:at 0 
,jonas do+ 9 ! %op1 :5 ,rollo & ,na?an  
w5t out     to f9d him8 ,:at "p ( !     
bell[s 0 out ( ord]8 ,h[ did     he make
 a new valve8 ,h[ did he fa/5 x to its  
place8 ,did he     nail d[n only "o     
edge1 or bo? edges8 ,:y did he want !   
o!r edge to be left at lib]ty8 ,h[ did  
he prev5t its lift+     up too f>8 ,:at 
0 ! fir/ exp]im5t :i* he p]=m$     ) !  
bell[s1 aft] he _h f9i%$ ! m5d+8 ,did x 
succe$ at fir/8 ,:y n8 ,9 work+ a pair (
 bell[s1 :]e     does ! air come 98 ,:]e
 does x g out8 ,:y _c ! air     escape  
?r\gh ! valve :]e x comes 98     ,,*apt]
 ,,iv4  ,,exp]im5ts4   ,:5 ,jonas _h    
f9i%$ nail+ d[n ! corn]1 he said1 ,n[   
!re are sev]al exp]im5ts1 :i* we c p]=m 
) ! bell[s4 ,i w be ! pr(essor1 & y two 
%all be my class 9 philosophy1 & ,i w   
direct y h[ to make ! exp]im5ts4  ,fir/1
 said ,jonas1 y1 ,rollo1 may take hold (
 ! nose ( ! bell[s ) y\r h&1 9 su* a way

 z to put y\r ?umb ov] ! end ( x1 to /op
 x up1 & !n let ,na?an try to bl[4      
,rollo did s1 & ,na?an tri$ to bl[4 ,he 
f\nd t he c\ld op5 ! bell[s v easily2 b 
:5 he attempt$ to press ! sides toge!r  
aga91 he c\ld n4 ,he cr[d$ ! h&le       
belong+ to ! upp] side d[n1 z h>d z he  
c\ld1 b x w\ld n move4  ,:at makes x d  
s8 said ,na?an4  ,! air inside1 said    
,jonas4 ,we h /opp$ up all ! places1 :]e
 x c\ld get out4 ,! valve /ops itself4  
,rollo /ops ! nose ) 8 ?umb1 & ,i h     
nail$ ! lea!r d[n close1 ab\t all !     
sides4 ,& s ! air c't get out1 & t keeps
 y f br++ ! sides toge!r aga94  ,na?an  
tri$ aga9 ) all 8 /r5g?4 ,! sides came  
toge!r v sl[ly4  ,!y're com+1 said he4  
,yes1 said ,jonas4 ,!y come a little1 j 
z fa/ z ! air c leak out ?r\gh ! little 
leaks all ar\nd4  ,i ?\ght y /opp$ all !
 leaks1 said ,na?an4  ,yes1 repli$      
,jonas1 ,i /opp$ all ! real leaks1 b    
/ill ,i c't make x p]fectly tight4 ,"s  
air c escape betwe5 ! lea!r & ! nails   
all ar\nd1 & j z fa/ z x c get out1 s   

fa/ y c press ! sides toge!r1 & no fa/]4
  ,"h ,na?an tri$ aga9 ) all 8 /r5g?2 b 
he c\ld only br+ ! sides toge!r v sl[ly4
  ,n[ comes ! second exp]im5t1 said     
,jonas4 ,:ile ,na?an is try+ to press ! 
two h&les toge!r1 y1 ,rollo1 may run y\r
 f+] into ! hole1 & pu% up ! valve a    
little4  ,rollo did s4 ,he pu%$ up !    
valve a little ) 8 f+]1 & t all[$ ! air 
to escape ?r\gh ! op5+4 ,! consequ5ce 01
 t ! bell[s collaps$ at once "u !       
pressure :i* ,na?an 0 ex]t+ ^u !m4      
,!re1 said ,jonas1 y see t :5 ! air is  
kept 91 y _c br+ ! sides toge!r2 b :5 ,i
 let ! air out1 !n !y come toge!r       
easily4  ,yes1 said ,na?an2 d x aga91   
,rollo4  ,s !y p]=m$ ! exp]im5t aga94   
,na?an pull$ ! h&les ap>t wide1 :ile    
,rollo kept 8 ?umb ov] ! nose1 to keep !
 air f issu+ ?r\gh4 ,!n ,na?an tri$ to  
press !m toge!r2 b he c\ld n1 until     
,rollo put 8 f+] "u1 & pu%$ up ! valve a
 little1 & !n !y came toge!r aga9 v     
easily4  ,! air is a real ?+1 ,i v]ily  
believe1 said ,na?an4  ,yes1 said       

,rollo1 ,i "k x is4 ,& n[ = ! ?ird      
exp]im5t1 ,jonas4  ,! ?ird exp]im5t1    
said ,jonas1 is ?is4 ,turn ! bell[s     
bottom upw>ds1 & try to bl[4  ,na?an did
 s4 ,he f\nd t he c\ld "w ! bell[s      
easily--too easily1 9 fact2 b !y did n  
bl[4  ,hold y\r h& opposite ! nose1 &   
see if any w9d comes1 said ,jonas4  ,!y 
did s2 !re 0 no w9d1 or r sc>cely any4  
,! reason is1 said ,jonas1 t1 :5 !      
bell[s are bottom upw>ds1 ! valve hangs 
d[n (f f ! hole all ! "t1 & lets ! air  
all out ?r\gh ! hole 9 ! side2 & x c    
come out m easily !re ?an ?r\gh ! nose1 
& s x don't bl[ well4  ,well1 ,jonas1   
said ,rollo1 t's a pretty good exp]im5t2
 b :at is ! next8 ,let me try ! next4   
,na?an1 x is my turn4  ,! next exp]im5t1
 :i* is ! fif?1----  ,no1 ! f\r?1 said  
,na?an4  ,! f\r?1 !n1 said ,jonas1 is to
 prove :at ,i said to y--t ! air1 :i* is
 bl[n out at ! nose ( ! bell[s1 really  
comes 9 ?r\gh ! valve4 ,let me see1--,i 
want some?+ to make a smoke4  ,w n pap] 
d8 said ,rollo4  ,yes1 said ,jonas1 "h  

is "s br[n pap]1 :i* w d4 ,s ,jonas     
roll$ x up1 & told ,rollo to set x on   
fire1 & !n1 :5 x 0 well burn+1 to /ep on
 x ) 8 foot1 & put ! flame out4  ,rollo 
did s1 & ! pap] lay 9 a heap1 mak+ a    
great smoke ^u ! he>?1 j be=e ! fire4   
,n[1 said ,jonas1 put ! bell[s ^u its   
edge1 by ! side ( ! pap]1 s z to h !    
valve ne> ! smoke1 & !n hold /ill a     
m9ute1 until ! smoke comes up /eadily by
 ! valve4  ,:5 ?is 0 done1 ,jonas told  
,na?an to take hold ( ! nose ( ! bell[s1
 to /eady x1 s t ,rollo c\ld bl[4 ,he !n
 direct$ ,rollo to lean ! bell[s ov] a  
little t[>ds ! smoke1 s t ! mov+ side   
%\ld n rub ^u ! he>?1 :5 he began to    
bl[4  ,n[1 he cont9u$1 if y "w ! bell[s1
 y w see t ! smoke w be drawn 9 ?r\gh ! 
valve1 & !n w come out ?r\gh ! nose4    
,?is exp]im5t succe$$ p]fectly well1    
only j 9 ! mid/ ( ! int]e/ t !y felt1 9 
see+ ! smoke come p\r+ out ?r\gh ! nose1
 !y he>d a bell r+ at ! h\se4 ,!y knew  
at once t ?is bell 0 = ,rollo & ,na?an2 
& s ! two boys jump$ up f ! he>?1 & ran 

out to see :at 0 want$4 ,!y w5t ?r\gh ! 
%$ into ! b>n1 & !nce on till !y came to
 ! great b>n door1 :]e !y _h come 94    
,!re ,rollo /opp$1--= he did n l to g   
out into ! sn[1--& ask$ ,doro?y1 :o 0   
r++ ! bell1 :at %e want$4  ,:]e's       
,na?an8 said ,doro?y4  ,he's "h ) me1   
said ,rollo4 ,na?an 0 com+ along1 z fa/ 
z he c\ld1 ?r\gh ! b>n4  ,d y want u8   
said ,rollo4  ,no1 said ,doro?y1 only we
 did n "k :]e y 74 ,y may /ay half an   
h\r m1 & !n x w be ne>ly d9n] "t4       
,doro?y !n w5t 91 leav+ ! boys at !     
great b>n door4 ,! door op5$ 9 su* a    
direction1 t ! w9d did n bl[ 92 & ,rollo
 & ,na?an look$ out = "s "t1 wat*+ !    
fall+ sn[1 & li/5+ to ! w9d1 z x ro>$   
?r\gh ! tops ( ! trees4 ,at la/1 :5 !y  
began to ?9k ( return+ to ! %op1 ,rollo 
said1--  ,o ,na?an1 let u g & hide1 & !n
 ,jonas w n "k :]e we are4  ,well1 said 
,na?an1 we w4  ,! boys accord+ly began  
to look ab\t ! b>n = a place to hide4 ,x
 0 a l>ge b>n1 ) /alls = ox5 & c[s1 &   
cribs = horses1 & "o or two calf-p5s4   

,!n !re 0 a gran>y 9 "o corn]1 & a      
tool-room ne> x1 & l(ts & scaffolds     
above4 ,! boys f\nd pl5ty ( places to   
hide 91 & x took !m "s "t to decide :i* 
to *oose4 ,at la/1 !y f\nd a good w>m   
place1 by "s bundles ( :eat /raw1 up 9 !
 b>n *amb]2 & !y amus$ !mselves by *oos+
 out l>ge /raws1 & mak+ tubes ( !m to   
bl[ ?r\gh4 ,!y call$ !m _! bell[s4  ,!y 
entirely =got t !y 7 hid f ,jonas1 =    
ne>ly half an h\r2 & !n ,rollo propos$ t
 !y %\ld creep s(tly d[n1 & see :at     
,jonas 0 ab\t4 ,s !y w5t d[n /airs on   
tiptoe2 ,rollo fir/1 & ,na?an foll[+4   
,!y crept s(tly along to ! door lead+   
out into ! %$1 ?r\gh :i* !y _h to pass 9
 ord] to get to ! %op2 & ,rollo 0 go+ to
 op5 ?is s(tly1 :51 to 8 surprise1 he   
f\nd x fa/5$4  ,:y1 ,na?an1 said he1 ?is
 door is fa/5$4  ,h[ came x fa/5$8 said 
,na?an4  ,i don't "k1 said ,rollo1      
unless ,jonas fa/5$ x4 ,i ?9k he mu/ h  
f9i%$ 8 "w1 & gone into ! h\se2 & s he  
has fa/5$ ?is door4  ,& n[ he won't come
 & f9d u1 said ,na?an4  ,no1 said       

,rollo1 & we mu/ g out ! front door4 ,& 
,i don't c>e mu*1 he cont9u$1 = x is    
pretty ne> d9n] "t4  ,! boys !n w5t back
 to ! front door ( ! b>n1 &1 to _!      
surprise & al>m1 f\nd t fa/5$ too4  ,:at
 %all we d8 said ,rollo2 ,jonas has     
fa/5$ u 94 ,z ,rollo said ?is1 8 face   
assum$ an expression ( great solicitude1
 & ,na?an began to cry4  ,don't cry1    
,na?an1 said he2 we c f9d "s way to get 
out4 ,b ,i don't see1 ,i confess1 :at   
made ,jonas lock u 94  ,! tru? 01 t     
,jonas did n "k t ! boys 7 9 ! b>n :5 he
 fa/5$ x up4 ,z !y did n come back aft] 
!y _h gone to answ] ! bell1 he suppos$ t
 !y _h gone into ! h\se2 & :5 he 0 ready
 to come 9 himself1 he %ut & fa/5$ !    
back doors ( ! b>n1 z he usually did :5 
he left ! %op4 ,he !n came ar\nd to !   
front b>n door1 & al?\gh t 0 on ! %elt]$
 side1 s t ! w9d did n bl[ 91 he ?\ght x
 possible t ! w9d might *ange1 & s drive
 ! sn[ 9 ^u ! b>n floor2 & !re=e1 to    
make all safe1 he ?\ght t he w\ld %ut   
!m1 too4 ,he accord+ly %ut ! great      

doors1 & put ! fid into ! /aple4 ,! fid 
is a wood5 p91 to be pass$ ?r\gh ! /aple
 :5 ! doors are %ut1 to fa/5 !m4 ,!     
doors _c be op5$ aga9 until ! fid is    
tak5 out4  ,rollo w5t all ar\nd ! b>n1  
try+ to f9d "s place :]e he c\ld get    
out2 b he c\ld n f9d any place at all4  
,let u g up /airs1 said he1 at l5g?1 to 
,na?an4  ,o1 x w n d any good to g up   
/airs1 said ,na?an4 ,x w\ld kill u to   
jump out ! w9d[4  ,i "k we c't jump out 
! w9d[1 said ,rollo1 b p]haps we c f9d  
out "s way to get d[n4 ,o1 !re is a     
ladd]2 ,i rememb] n[1 ,na?an1 !re is a  
ladd]4 ,we c get d[n f ! w9d[ by !      
ladd]4  ,i %all be afraid to g d[n !    
ladd]1 said ,na?an4  ,o no1 said ,rollo1
 ,i w g fir/1 & see if x is safe4  ,by  
?is "t !y _h rea*$ ! b>n *amb]4 ,!re 0 a
 w9d[ 9 x1 ) glass1 ov] ! great b>n     
door2 b ,rollo c\ld n get x op54 ,he    
told ,na?an t1 if he c\ld only get x    
op51 & c\ld f9d a long pole1 he c\ld    
rea* x d[n1 & knock ! fid out1 & s op5 !
 great doors4 ,b1 ) all 8 ef=ts1 he c\ld

 n raise ! w9d[4  ,!re 0 ano!r w9d[1 :i*
 _h no glass1 b 0 clos$ by a wood5      
%utt]1 :i* op5$ ^u h+es l a door4 ,rollo
 said he meant to op5 ?is w9d[4 ,n[1 x  
happ5$ t ?is w9d[ 0 ^u t side ( ! b>n   
:i* 0 expos$ to ! w9d & /orm2 &1 ! mom5t
 t ,rollo _h pu%$ op5 ! %utt] a little  
way1 ! w9d =c$ x in/antly f 8 h&1 &     
slamm$ x back aga9/ ! side ( ! b>n1 )   
great viol5ce4 ,x almo/ pull$ ,rollo    
himself out ( ! w9d[4  ,na?an look$     
fright5$4 ,rollo himself look$ some:at  
a/oni%$ at su* an unexpect$ effect2 b   
pres5tly said1--  ,well1 ,na?an1 ,i r   
?9k t1 if y _h _h hold ( t %utt]1 y w\ld
 h ?\ght t air 0 a real ?+4  ,o1 t 0 !  
w9d1 ,rollo2 t 0 ! w9d1 said ,na?an4    
,rollo did n answ]1 b w5t to ! ladd]1   
:i* 0 /&+ up aga9/ ! hay-l(t4 ,x 0 a    
pretty long1 b yet a v light ladd]2 &   
,rollo & ,na?an succe$$1 aft] "s        
difficulty1 9 gett+ x d[n1 & 9 runn+ !  
end out ( ! w9d[4 ,:5 ! l[] end rea*$ ! 
gr\nd1 ! upp] end 0 two or ?ree feet    
above ! bottom ( ! w9d[2 s t ,rollo c\ld

 easily get ^u x to desc5d4 ,! w9d &    
/orm1 :i* rag$ ) great viol5ce1 7       
some:at t]rify+2 b he knew t ! ladd] 0  
secure1 ! upp] "p be+ conf9$ 9 ! w9d[2 &
 s he resolutely desc5d$4 ,:5 he _h     
fairly rea*$ ! gr\nd1 he look$ up1 ) an 
expression ( great satisfaction ^u 8    
c\nt5ance1 & said1--  ,!re6 n[1 ,na?an1 
= y\r turn4  ,b ,na?an 0 afraid to      
v5ture2 & ,rollo himself 0 half afraid  
to h him make ! attempt4 ,:ile !y 7 /&+ 
9 ?is p]plexity1 ,rollo he>d a voice    
beh9d him1 call+ out1--  ,rollo4  ,rollo
 turn$1 & saw ,doro?y /&+ by ! door4    
,:at are y do+1 ,rollo8 said ,doro?y4   
,i am try+ to get ,na?an out ( ! b>n1   
said ,rollo4  ,h[ came he 9 ! b>n8 said 
,doro?y4  ,:y1 ,jonas lock$ u 91 & ,i _h
 to come d[n ! ladd]2 b ,na?an is       
afraid1 & ,i c't get him out4  ,:y don't
 y g to ! door1 & let him "r out8  ,o1  
said ,rollo1 laugh+1 ,i nev] ?\ght ( t4 
,g d[n1 ,na?an1 he cont9u$1 to ! door1 &
 ,i w g r\nd & knock out ! fid4  ,s     
,na?an w5t d[n1 & ,rollo1 meet+ him !re1

 knock$ out ! fid1 & releas$ him f 8    
imprisonm5t4       ,,que/ions4      ,:at
 0 ! fir/ exp]im5t ) ! bell[s1 describ$ 
9     ?is *apt]8 ,:y c\ld n ,na?an press
 ! two sides ( !     bell[s toge!r1 :ile
 ! nose 0 /opp$8 ,:at 0 !     second    
exp]im5t8 ,:at 0 ! effect produc$ by    
turn+ !     bell[s bottom upw>ds1 z 9 ! 
?ird exp]im5t8 ,:at 0 !     f\r?        
exp]im5t8 ,:at 0 ! use ( ! smoke ( !    
pap]8     ,h[ 7 ! exp]im5ts int]rupt$8  
,:at evid5ce did ,rollo     & ,na?an h t
 ! air 0 a real sub/ance1 :5 9 !     b>n
 *amb]8     ,,*apt] ,v4  ,,pressure4    
,"o ev5+1 j aft] tea1 ,rollo came to 8  
fa!r1 :o 0 sitt+ by ! side ( ! fire1 &  
said1--  ,fa!r1 ,i wi% we c\ld see !    
air1 z we c ! wat]1 & !n p]haps we c\ld 
try exp]im5ts ) x4  ,o1 we c try        
exp]im5ts ) ! air z x is1 said 8 fa!r4  
,c we8 said ,rollo2 ,i don't see h[4    
,we _c see ! air1 x is true2 b !n we c  
see its effects1 & s we c exp]im5t ^u x4
  ,well1 at any rate1 said ,rollo1 we   
c't build a dam1 & make x sp\t ?r\gh a  

hole1 l wat]4  ,no1 said 8 fa!r1 n      
exactly4 ,9 y\r dam1 = in/ance1 :5 x 0  
full1 y _h wat] on "o side ( ! bo>d1 &  
no wat] on ! o!r2 & !n1 by op5+ a hole 9
 ! bo>d1 ! wat] sp\t$ ?r\gh2 b we _c v  
well get air on "o side ( a p>tition1 & 
no air on ! o!r2 if we c\ld1 x w\ld sp\t
 ?r\gh v mu* z ! wat] did4  ,:y c't we d
 t1 sir8 said ,rollo4  ,because1 repli$ 
8 fa!r1 we are all surr\nd$ & envelop$ )
 air4 ,x spreads 9 e direction all ar\nd
 u1 & rises _m miles above u4 ,:]eas1 9 
respect to wat]1 y _h "o little /ream   
be=e y1 :i* y c\ld manage j z y pleas$4 
,if y 7 d[n at ! bottom ( ! sea1 !n !   
wat] w\ld be all ar\nd y & above y2 &   
!re1 ev5 if y c\ld live !re1 y c\ld n h 
a dam4  ,no1 sir1 said ,rollo1 ! wat]   
w\ld be ev]y:]e4  ,yes1 repli$ 8 fa!r1 &
 ! air is ev]y:]e4 ,if1 h[ev]1 we c\ld  
get x away f any place1 z1 = in/ance1 f 
?is room1 !n bore a hole ?r\gh ! wall1 !
 weight ( ! air outside w\ld cr[d a     
portion ( x ?r\gh ! hole1 exactly z !   
weight ( ! wat] above ! bo>d 9 y\r dam  

cr[d$ a "p ?r\gh ! hole 9 ! bo>d4  ,i   
wi% we c\ld try x1 said ,rollo4  ,we c  
try x1 9 sub/ance1 said 8 fa!r1 9 ?is   
room2 or--no1 ! *9a closet w be bett]4  
,!re 0 a *9a closet1 :i* _h two doors 9 
x4 ,"o door op5$ into ! p>lor1 :]e      
,rollo & 8 fa!r 7 sitt+4 ,! o!r door    
op5$ into ! back "p ( ! entry4 ,rollo's 
fa!r expla9$ h[ he 0 go+ to p]=m !      
exp]im5t1 ?us3--  ,if we c\ld1 by any   
means1 get all ! air out ( ! closet = a 
mom5t1 !n ! pressure ( ! air outside    
w\ld =ce a jet ( x 9 ?r\gh ! key-holes (
 ! doors1 & ! crevices4  ,& h[ c we get 
! air out8 said ,rollo4  ,we c't1 said 8
 fa!r1 get x all out2 b we c get a "p ( 
x out by %utt+ ! door quick4 ,! door w  
c>ry ) x a "p ( ! air t 0 9 ! closet1 & 
!n ! outside air w be sp\t$ 91 ?r\gh !  
key-hole ( ! o!r door4 ,only we c't see 
x1 z we c ! wat]4  ,no1 said ,rollo2 b  
,i c put my h& !re1 & feel x4  ,a bett] 
way1 said 8 fa!r1 w\ld be to hold a lamp
 opposite to ! key-hole1 & see if x bl[s
 ! flame4  ,rollo tri$ ! exp]im5t1 9 !  

way 8 fa!r _h describ$4 ,he w5t into !  
closet ) ! lamp4 ,he held ! lamp        
opposite to ! key-hole1 & pretty ne> to 
x1 & !n he ask$ ,na?an to %ut ! o!r door
 sudd5ly4 ,na?an1 :o 0 /&+ all ready by 
! o!r door1 :i* 0 ab\t half op51 put 8  
two h&s aga9/ x1 & pu%$ x to1 ) all 8   
/r5g?1 produc+ a great concussion4  ,o  
,na?an1 said 8 fa!r1 y ne$ n be q s     
viol5t z t4  ,x succe$$1 fa!r1 x        
succe$$1 said ,rollo4  ,i'm glad x      
succe$$1 said 8 fa!r2 b ,na?an ne$ n h  
%ut ! door ) s mu* =ce4  ,i want$ to    
drive out all ! air1 said ,na?an4  ,i'll
 %[ y h[ to d x1 said 8 fa!r4  ,rollo's 
fa!r accord+ly arose1 & came to ! closet
 door4 ,he op5$ ! door wide1 & !n       
expla9$ to ! boys1 t ! beg9n+ ( !       
movem5t ( ! door1 :5 x 0 wide op51 did n
 drive out any air4  ,=1 said he1 !re is
 s l>ge a space betwe5 ! edge ( ! door &
 ! wall1 t ! air t is put 9 motion by ! 
movem5t ( ! door1 c pass directly r\nd !
 edge1 back into ! closet aga94 ,x is   
only :5 ! door is almo/ %ut1 :5 ! edge (

 x comes close to ! cas+ all ar\nd1 t ! 
movem5t ( ! door drives ! air out4  ,!n 
he took hold ( ! lat* ( ! door1 & put x 
almo/ to1 v g5tly4 ,he turn$ ! lat* s z 
to prev5t its snapp+ aga9/ ! cat*1 & !n 
pu%$ x sudd5ly into its place ?ree or   
f\r times1 op5+ ! door only a v little  
way e "t4  ,n[1 said he1 hold ! lamp at 
! key-hole1 & wat* ! flame1 :ile ,i %ut 
! door two or ?ree times 9 ?is way4     
,rollo did s1 ,na?an /&+ all ! "t by 8  
side4 ,!y obs]v$ t ! flame ( ! lamp 0   
driv5 into ! room e "t ! door 0 %ut2    
prov+ t1 e "t a little ( ! air 0 driv5  
out by ! door1 a little puff ru%$ 9 at !
 key-hole4  ,let u /op up ! key-hole1   
said ,rollo1 & !n x c't get 94  ,yes1   
said 8 fa!r1 !re are a great _m little  
crevices all ar\nd ! closet1 :]e ! air c
 come 94  ,c\ldn't we /op ^? up too8    
said ,rollo4  ,no1 said 8 fa!r1 n s z to
 make ! closet air-tight4 ,=1 if !      
crevices c\ld all be /opp$ exactly1 !   
air w\ld come 9 ?r\gh ! v wood itself4  
,h[8 said ,rollo4  ,:y1 !re are little  

pores 9 wood1 t is1 little *annels t !  
sap fl[$ 9 :5 ! wood 0 gr[+1 & ! air c  
pass ?r\gh ^!4  ,"h ,rollo's fa!r obs]v$
 t ,rollo 0 look+ v int5tly at ! table2 
& he ask$ him :at he 0 do+3 he said he 0
 try+ to f9d "s ( ! pores4  ,y c't see  
!m !re1 said 8 fa!r4 ,/4 ,dom+o mahogany
 is a v h>d & close-gra9$ k9d ( wood4   
,if x 0 summ]1 & y c\ld dig d[n & get a 
small piece ( ! root ( ! great elm-tree 
9 ! y>d1 y c\ld see ! pores & *annels   
!re4  ,aft] "s m conv]sation on ?is     
subject1 ,rollo ask$ 8 fa!r if he c\ld n
 ?9k ( "s o!r exp]im5ts = !m to try4 ,8 
fa!r said t he did n j !n ?9k ( any     
exp]im5t1 b t1 if ,rollo & ,na?an w\ld  
come & sit d[n by ! fire1 he w\ld give  
!m "s in=mation on ! subject4 ,rollo's  
"m said t %e %\ld l to he> too4 ,!y     
accord+ly wait$ until %e 0 ready1 & !n1 
:5 all 7 seat$1 ,mr4 ,holiday began     
?us3--  ,air is 9 _m respects mu* l     
wat]4  ,yes1 int]rupt$ ,rollo1 j l wat]1
 only ?9n]1 because1 y see----  ,y mu/ n
 int]rupt me1 said 8 fa!r1 unless to ask

 "s "q1 :i* is necess>y to und]/& :at ,i
 say4 ,x is entirely irregul> = a pupil1
 in/ead ( li/5+ to 8 tea*]1 to int]rupt1
 9 ord] to tell some?+ t he kn[s        
himself4  ,rollo's fa!r smil$1 z he said
 ?is1 b ,rollo look$ r a%am$4 ,!n 8 fa!r
 proce$$3--  ,!re is "o v rem>kable     
diff]5ce betwe5 !m4 ,wat] is n          
compressible by =ce2 b air is4  ,:at is 
! mean+ ( compressible8 said ,na?an4    
,compressible ?+s1 said 8 fa!r1 are ^? t
 c be compress$1 t is1 press$ toge!r1 s 
z to take up less room ?an !y did be=e4 
,sponge is compressible4 ,a pill[ is    
compressible4 ,b iron is n compressible1
 & wat] is n compressible4  ,i %\ld ?9k 
x 01 said ,na?an2 x is v s(t4  ,x is v  
yield+1 repli$ 8 fa!r1 :5 y press x1 b x
 is n press$ into any small] space4 ,x  
only moves away4 ,if y h a tumbl] half  
full ( wat]1 & press a ball d[n into x1 
y c\ld n cr[d ! wat] into any small]    
space ?an x occupi$ at fir/2 b1 z fa/ z 
! ball w5t d[n1 ! wat] w\ld come up     
ar\nd ! sides ( ! ball4  ,b suppose1    

said ,rollo1 t ! ball 0 j big en\gh to  
fit ! tumbl] all ar\nd2 !n ! wat] c\ld n
 come up4  ,& !n1 said 8 fa!r1 y c\ld n 
cr[d ! ball d[n4  ,c\ld n a v /rong man8
 said ,na?an4  ,no1 repli$ 8 fa!r1 !    
wat] _c be s5sibly compress$4 ,b n[1 if 
! tumbl] conta9$ only air1 & if a ball 7
 to be put 9 at ! top1 j l>ge en\gh to  
fit ! tumbl] exactly1 & if a /rong man 7
 to cr[d x d[n ) all 8 /r5g?1 he w\ld1  
p]haps1 compress ! air into half ! space
 :i* x occupi$ be=e4  ,p]haps ! tumbl]  
w\ld break1 said ,na?an4  ,yes1 repli$ 8
 fa!r1 & ! tumbl] w answ] only = a      
supposition2 b = a real exp]im5t x w\ld 
be be/ to h a cyl9d] ( iron4  ,:at is a 
cyl9d]8 said ,na?an4  ,an iron vessel1  
%ap$ l a tumbl]1 only z l>ge at ! bottom
 z x is at ! top1 w\ld be a cyl9d]4 ,n[1
 if !re 0 a cyl9d] ( iron1 ) ! inside   
turn$ p]fectly true1 & a brass pi/on    
fitt$ to x----  ,:at is a pi/on8 said   
,na?an4  ,a pi/on1 said 8 fa!r1 is a    
sort ( /opp]1 exactly fitt$ to ! inside 
( a cyl9d]1 s z to slide up & d[n4 ,x is

 made to fit p]fectly1 & !n x is oil$1 s
 z to g up & d[n )\t mu* friction1 t is1
 h>d rubb+4 ,!re is a sort ( /em com+ up
 f ! middle ( ! pi/on1 call$ ! pi/on    
rod1 :i* is to draw up ! pi/on1 & to    
press x d[n by4  ,n[1 cont9u$ 8 fa!r1 if
 a /rong man _h a cyl9d] l ?is1 ) a     
pi/on fitt$ to x1 & a /rong h&le across 
! top ( ! pi/on rod1 p]haps he might    
press ! air into "o half ! space :i* x  
occupi$ be=e4 ,t is1 if ! cyl9d] 0 full 
( air :5 he put ! pi/on 91 p]haps he    
c\ld get ! pi/on d[n half way to !      
bottom4 ,!n ! air w\ld be twice z d5se z
 x 0 be=e2 t is1 !re w\ld be twice z mu*
 ( x 9 ! same space z !re 0 be=e4 ,x    
w\ld be twice z compact & heavy4 ,?is is
 call$ cond5s+ air4 ,! philosoph]s h    
+5i\s in/rum5ts = cond5s+ air4  ,if1    
h[ev]1 a man cond5ses air 9 ?is way1 by 
cr[d+ d[n a pi/on1 he does n beg9 !     
cond5sation :5 ! pi/on beg9s to desc5d4 
,! air is cond5s$ a great deal be=e he  
beg9s4 ,all ! air ar\nd u is cond5s$4   
,h[ comes x cond5s$8 said ,rollo4  ,:y1 

y recollect t1 :5 y bor$ a hole ?r\gh ! 
bo>d 9 ! bottom ( y\r dam1 ! wat] sp\t$ 
out4  ,no1 fa!r1 said ,rollo1 we pull$ !
 plug out2 ,jonas bor$ ! hole4  ,well1  
said 8 fa!r1 ! wat] sp\t$ out4  ,yes1   
said ,rollo4  ,:at made x8 said 8 fa!r4 
,:y1 ! wat] above x 0 heavy1 & press$   
d[n ^u x1 & cr[d$ x out ?r\gh ! hole4   
,yes1 said 8 fa!r1 & ! deep] ! wat]1 ! m
 heavily x 0 press$4  ,yes1 sir1 said   
,rollo1 & ! f>!r x sp\t$4  ,because x 0 
press$ d[n by ! load ( su* a high column
 ( wat]4  ,yes1 sir1 said ,rollo4       
,well1 repli$ 8 fa!r1 x is j s ) ! air4 
,! air all ar\nd u is press$ d[n by !   
load ( all t is above u4 ,we are1 9     
fact1 d[n at ! bottom ( a great ocean ( 
air1 & ! air "h is load$ d[n v heavy4   
,h[ heavy8 said ,rollo4  ,o1 v heavy    
inde$1 said 8 fa!r4  ,:y1 air is pretty 
light1 said ,rollo4  ,yes1 repli$ 8     
fa!r1 b !n ! column ( x is v high4  ,h[ 
high8 said ,rollo4  ,:y1 betwe5 ?irty & 
=ty miles4 ,b x gr[s ?9n] & ?9n] t[>ds !
 top2 s x is n z heavy1 by any means1 z 

a column ( air w\ld be1 ?irty miles     
high1 & z d5se all ! way up z x is "h4  
,:at makes x gr[ ?9n] & ?9n] t[>ds !    
top8 said ,rollo4  ,because1 said 8     
fa!r1 t :i* is ne> ! top1 has n z mu*   
load ( air above x1 to press x d[n4  ,& 
t :i* is at ! top1 said ,rollo1 has none
 above x1 to press x d[n4  ,no1 repli$ 8
 fa!r4  ,& h[ ?9 is x !re8  ,nobody     
kn[s1 said 8 fa!r4  ,:at1 nobody at all8
 said ,na?an4  ,no1 ,i believe n2 at    
lea/ ,i d n2 & ,i don't "k t any body   
does4  ,h[ d !y "k1 !n1 h[ high x is8   
said ,rollo4  ,! philosoph]s h calculat$
 9 "s way or o!r1 ?\gh ,i don't exactly 
"k h[4 ,i believe !y h asc]ta9$ h[ great
 ! pressure ( ! air is "h at ! surface (
 ! e>?1 & h calculat$ 9 "s way1 f t1 h[ 
high ! air mu/ be to produce su* a      
pressure4  ,& h[ high mu/ x be8 said    
,na?an4  ,:y1 betwe5 ?irty & =ty miles1 
said ,rollo2 fa!r told u once4  ,& yet1 
cont9u$ 8 fa!r1 wat]1 ?irty or =ty feet 
deep1 w\ld produce z great a pressure z 
a column ( air ( ?irty or =ty miles4 ,t 

is1 ! air ar\nd presses ab\t z heavily1 
& w\ld =ce a jet ( air ?r\gh a hole )   
ab\t z mu* =ce1 z wat] w\ld1 com+ out at
 ! bottom ( a dam1 z high z a common    
?ree-/ory h\se4  ,^! explanations 7 all 
v int]e/+ to ,rollo & to 8 "m2 b ,na?an 
f\nd x r h>d to und]/& !m all1 & he     
began to be some:at re/less & uneasy4   
,at l5g? he said1--  ,& n[1 fa!r1 hav5't
 y almo/ done tell+ ab\t ! air8  ,:y1   
yes1 said 8 fa!r2 ,i h told y en\gh =   
?is "t2 only y mu/ rememb] x all4  ,i   
don't ?9k ,i c rememb] x q all1 said    
,na?an4  ,well1 !n1 rememb] ! g5]al     
pr9ciple1 at any rate1 said 8 fa!r1 :i* 
is ?is--t we live at ! bottom ( a va/   
ocean ( air1 & t ! l[] portions ( ?is   
air are press$ d[n by ! load ( all ! air
 above2 t1 be+ s press$1 ! l[] air is   
cond5s$1--s t we live 9 ! mid/ ( air t  
is press$ d[n1 & cond5s$1 by ! load (   
all t is above x2 & t1 consequ5tly1     
:5ev] ! air is tak5 away1 ev5 9 "p1 f   
any place1 z y remov$ "s ( x f ! *9a    
closet1 ! pressure ^u ! air outside =ces

 ! air 9 ?r\gh e op5+ x c f9d4  ,i ?9k t
 is a little too mu* = me to rememb]1   
said ,na?an4  ,na?an's fa!r & "m laugh$ 
on he>+ ?is1 ?\gh ,na?an did n "k :at !y
 7 laugh+ at4 ,8 fa!r told him t he c\ld
 n expect him to rememb] all2 & t1 to   
pay him = 8 p>ticul> att5tion1 he w\ld  
tell him a /ory4  ,s he took ,na?an up 9
 8 lap1 & told him a v curi\s /ory ( a  
boy1 :o w5t ab\t ! y>d ) a little dog ^u
 "o ( 8 %\ld]s1 a cat ^u ! o!r1 & a     
squirrel on 8 head4 ,! squirrel 0 tame4 
,,que/ions4      ,:y _c exp]im5ts be    
p]=m$ ^u ! pressure ( air1 z            
conv5i5tly z ^u ! pressure ( wat]8 ,h[  
did ,rollo's     fa!r contrive to remove
 a "p ( ! air f ! *9a     closet8 ,:]e  
did !y expect t ! air w\ld be =c$ into  
! closet8 ,h[ 7 !y to make ?is effect   
visible8 ,did !     exp]im5t succe$8    
,suppose ! key-hole _h be5 /opp$ up2    
:]e w\ld ! air h be5 =c$ 98 ,suppose all
 !     crevices _h be5 clos$4 ,is wat]  
compressible8 ,is air     compressible8 
,:at is ! %ape ( a cyl9d]8 ,:at is a    

pi/on8     ,h[ might air be compress$ by
 means ( a cyl9d] & pi/on8     ,:at 0 ! 
g5]al pr9ciple :i* ,rollo's fa!r /at$1 9
     conclusion8     ,,*apt] ,,vi4      
,,balloon+4   ,! next ev5+1 ,rollo &    
,na?an _h ano!r conv]sation ) _! fa!r1  
respect+ air4 ,:5 !y 7 all seat$1 he    
comm5c$ z foll[s3--  ,i told y ye/]day1 
t air may be compress$ by =ce1 :ile wat]
 _c be4 ,x has ano!r prop]ty1 :i* is 9  
"s respects ! rev]se ( ?is4 ,x spr+s    
back into its orig9al bulk1 :5 !        
pressure is remov$4  ,h[8 said ,na?an2  
,i don't exactly und]/& y4  ,:y1 y      
rememb] :at ,i said ab\t ! exp]im5t ) ! 
iron cyl9d] & a pi/on to fit x4  ,yes1  
sir1 said ,rollo4  ,:at 0 ! exp]im5t8   
said 8 fa!r4  ,:y1 if a man 7 to press !
 pi/on d[n h>d1 he c\ld cr[d ! air all  
into ! l[] half ( ! cyl9d]4  ,yes1      
repli$ 8 fa!r4 ,n[1 ! prop]ty ,i am go+ 
to tell y ab\t ?is ev5+ is ?is--t1 if ! 
man lets g ( ! pi/on rod1 ! air t is    
cond5s$ into ! bottom ( ! cyl9d]1 w spr+
 up1 & =ce ! pi/on up aga94 ,?is prop]ty

 is call$ ela/icity4 ,x is sometimes    
call$ ! expansive =ce ( ! air4 ,= x is a
 =ce t5d+ to exp& ! air1 t is1 to swell 
x out into its orig9al dim5sions4 ,?is  
is ano!r great diff]5ce betwe5 air &    
wat]4  ,n[1 z all ! air ar\nd u1 cont9u$
 ,rollo's fa!r1 is press$ d[n v heavily1
 & is cond5s$ a great deal1 x is all !  
"t endeavor+ to exp&2 & x w\ld exp&1 7 x
 n t ! great burd5 ( ! air above x keeps
 x cond5s$4 ,b wat] is n compress$1 &   
has no t5d5cy to exp&4 ,! wat] (        
,rollo's dam1 = in/ance1 _h all ! weight
 ( ! atmosph]e re/+ ^u x1 b x did n     
compress x at all1 & s x did n t5d to   
exp&4  ,& n[1 said 8 fa!r1 ,i _c p]=m   
any exp]im5t1 to %[ y t air t5ds /rongly
 to exp& or swell out into a great      
space1 :ile wat] does n2 b ,i c make a  
supposition1 :i* w illu/rate x4 ,suppose
 we _h a l>ge1 b v ?91 glass bottle1    
fill$ ) wat]1 & put d[n ^u ! floor 9 !  
middle ( ?is room4 ,suppose1 also1 t we 
_h ano!r bottle1 ( ! same size & %ape1  
fill$ ) air1 & we put t d[n ^u ! floor  

by ! side ( ! o!r2 bo? bottles be+ /opp$
 v tight4 ,n[1 if we c\ld by any means  
sudd5ly take away all ! air f ! room1 s 
t !re %\ld be no?+ ar\nd ! bottles1 !n !
 bottle ( wat] w\ld rema9 j z x is1 = ! 
glass w\ld h no?+ to support b ! weight 
( ! wat]1 & x w\ld be /rong en\gh = t4  
,b ! bottle ( air w\ld fly all to       
pieces2 = t w\ld n re/ quietly1 l !     
wat]1 satisfi$ ) ! space :i* x already  
has1 & only press+ ) its own weight ^u !
 sides ( ! glass2 b x w\ld imm$iately   
exp& ) s mu* =ce z to break ! ?9 glass  
all to pieces4  ,w\ld x6 exclaim$ ,rollo
 & ,na?an toge!r4 ,& w\ld x make a l\d  
noise8  ,yes1 repli$ _! fa!r1 ,i presume
 x w\ld make a l\d explosion2 t is1 if !
 air 9 ! room ar\nd x c\ld by any means 
be all at once & sudd5ly remov$4  ,& s y
 mu/ rememb]1 he cont9u$1 t !re are two 
v rem>kable diff]5ces betwe5 air & wat]4
 ,air may be cond5s$ by pressure1 &1 z x
 exi/s all ar\nd u1 is greatly cond5s$  
by ! pressure ( ! air above1 & x may be 
compress$ m4 ,& air is expansive1 :ile  

wat] is n4 ,:5ev] ! pressure ^u x is    
remov$1 x sudd5ly exp&s1 or spreads out 
9 all directions4  ,o de> me6 said      
,na?an1 ) a sigh4  ,:at is ! matt]8 said
 8 fa!r4  ,:y1 ,i c't und]/& x v well4  
,c't y8 said 8 fa!r4 ,well1 ,i mu/ admit
 t y are r too "y to /udy pneumatics4   
,pneumatics8 repeat$ ,rollo4  ,yes1 said
 8 fa!r2 t is ! "n ( ?is sci5ce4        
,illu/ration3 ,!n x sail$ sl[ly         
away4--,page #he4  ,:at1 ! sci5ce ( air8
 said ,rollo4  ,yes1 said 8 fa!r1 !     
sci5ce :i* treats ( air1 & ( all o!r    
compressible & expansive fluids4 ,b let 
me ?9k4 ,i mu/ try to tell y some?+ :i* 
,na?an c und]/& & be int]e/$ 94 ,if ,i  
_h a v light fea!r1 ,i c\ld let him p]=m
 an exp]im5t4  ,w\ld a little d[n d8    
said ,rollo's "m4  ,yes1 repli$ 8 fa!r1 
t w\ld be bett] ?an a fea!r4  ,mrs4     
,holiday !n w5t & br\ght a little d[n1 &
 h&$ x to ,rollo's fa!r4 ,n[1 !re 0 a   
lamp ^u ! table1 ( a peculi> k9d1 call$ 
a /udy lamp4 ,x _h a glass tube1 call$ a
 *imney1 ar\nd ! wick1 & consequ5tly    

ar\nd ! flame itself1 be+ r\nd1 l a r+4 
,rollo's fa!r told ,na?an to hold ! d[n 
ov] ! top ( ?is glass *imney1 & !n to   
let x g4  ,na?an did s4 ,! little tuft (
 d[n 0 waft$ up into ! air1 q high above
 ! lamp1 & !n x sail$ sl[ly away1 & fell
 d[n ^u ! table4  ,i "k :at makes x     
rise1 said ,rollo4 ,x is ! heat4 ,! heat
 makes x rise4  ,d y ?9k s8 said 8 fa!r4
 ,!n take ! d[n1 & lay x g5tly ^u !     
he>?1 be=e ! fire1 z ne> z y c4  ,rollo 
did s4 ,he _h to take 8 h& away v quick1
 = x 0 q hot !re4 ,! little tuft rema9$ 
quietly ^u ! he>? :]e he plac$ x4  ,!re1
 said 8 fa!r1 is n t a hott] place ?an x
 0 ov] ! lamp8  ,yes1 sir1 said ,rollo4 
,!n1 if x 0 heat t made x rise1 :y does 
n x rise n[8  ,rollo c\ld n tell4  ,i w 
tell y h[ x 01 said 8 fa!r4 ,heat makes 
air m expansive4 ,:5 air is heat$1 x    
swells2 :5 x is cool1 x %r9ks aga94 ,n[1
 if x swells1 x becomes light]1 & s x is
 buoy$ up by ! heavi] air ar\nd x2 j z  
wood at ! bottom ( ! sea w\ld be buoy$  
up1 & w\ld rise to ! surface ( ! wat]4  

,n[1 ! heat ( ! lamp heats ! air t is 9 
! glass *imney1 & swells x4 ,?is makes x
 light]2 & s ! air ar\nd x1 :i* is      
heavi]1 buoys x up1 & x c>ries up !     
fea!r ) x4  ,no1 ! d[n1 fa!r1 said      
,na?an4  ,yes1 ! d[n1 said 8 fa!r4  ,!n 
x seems to me1 aft] all1 said ,rollo1 t 
x is ! heat :i* makes x rise4  ,yes1    
said 8 fa!r1 x does1 indirectly4 ,x     
exp&s ! air2 t makes x light]2 !n !     
heavy air ar\nd x buoys x up1 &1 :5 x   
goes up1 x c>ries up ! d[n4 ,s t x is n 
/rictly correct to say1 t ! heat c>ries 
x up4 ,! heat sets 9 op]ation a tra9 (  
causes & effects1 ! la/ ( :i* results 9 
c>ry+ up ! fea!r4  ,n[1 cont9u$ 8 fa!r1 
!re is always a /ream ( air go+ up1     
:]ev] !re is a lamp1 or a fire1 or heat1
 :i* heats ! air 9 any way4 ,! exp&$ air
 f a fire goes up *imney4 ,! cool &     
heavy air 9 ! room & out ( doors cr[ds x
 up4  ,! air out ( doors8 said ,rollo4  
,h[ c t cr[d x up8  ,:y1 x presses 9    
?r\gh all ! crevices & op5+s all ar\nd !
 room1 & cr[ds ! light air up ! *imney4 

,all ! smoke is c>ri$ up too ) x1 & x   
comes p\r+ out at ! top ( ! *imney all !
 "t4  ,y c see t ! air presses 9 at all 
^! crevices1 cont9u$ ,rollo's fa!r1 by  
exp]im5t4  ,:at exp]im5t is x8 said     
,rollo2 let u try x4  ,i w let ,na?an   
try x1 said 8 fa!r1 & y may g ) him &   
see ! effect4 ,fir/1 he cont9u$1 y see  
by ! smoke1 t ! air really goes up !    
*imney2 & ,i w %[ y t o!r air really    
cr[ds into ! space1 f o!r p>ts ( ! room4
  ,s he took a lamp f ! table1--n ! /udy
 lamp2 x 0 a common lamp1--& held x at  
v>i\s places 9 ! op5+ ( ! fireplace1 by 
! jambs & ne> ! upp] "p2 & ,rollo &     
,na?an saw t ! flame1 9 all cases1 0    
turn$ 9 t[>ds ! *imney4  ,yes1 said     
,rollo1 ,i see x is drawn 94  ,no1 said 
8 fa!r2 /rictly speak+1 x is n drawn 92 
x is press$ 91 by ! cool & heavy air ( !
 room4  ,i ?\ght1 said ,rollo's "m1 t ! 
*imney drew ! air f ! room into x4  ,t  
is :at is g5]ally said1 repli$ ,mr4     
,holiday1 b x is n /rictly true4 ,!     
common idea is1 t ! hot air rises 9 !   

*imney1 & s draws ! air f ! room to     
supply its place2 b ?is is n s4 ,9 !    
fir/ place1 no?+ c rise unless x is =c$ 
up4 ,! lighte/ ?+s h "s weight1 & w\ld1 
if left to !mselves1 fall4 ,! hotte/ &  
lighte/ air 9 a *imney w\ld fall to !   
e>?1 if !re 0 no cool] & heavi] air     
ar\nd x1 to =ce x to rise2--j z !       
lighte/ cork1 :i* w\ld rise v quick f ! 
bottom ( ! sea1 w\ld fall back aga9 v   
quick1 if ! wat] 0 n !re4  ,rememb]1 !n1
 ,na?an & ,rollo1 t1 :5 a fire is built 
9 a fireplace1 s z to w>m ! air 9 !     
*imney1 x makes ?is air n s heavy2 & !n 
! cool air all ar\nd x 9 ! room & out ( 
doors1 presses 91 & cr[ds "u ! light    
air1 & makes x asc5d4  ,b1 fa!r1 said   
,na?an1 y said ,i might p]=m an         
exp]im5t4  ,v well1 ,i am ready n[4     
,take ! lamp1 & c>ry x ar\nd ! room1 &  
hold x opposite any little op5+ y c f9d4
  ,i c't f9d any little op5+s1 said     
,na?an4  ,o yes1 said 8 fa!r2 ! key-hole
 ( ! door is a little op5+1 & !re is a  
n>r[ crevice all ar\nd ! door2 & y w f9d

 little crevices ar\nd ! w9d[s4 ,n[1    
hold ! lamp opposite any ( ^!1 & y w see
 t ! air presses 94  ,s ,na?an w5t ) !  
lamp1 ,rollo foll[+ him1 & held ! lamp  
opposite to ! key-hole1 & ! crevices    
ar\nd ! door & w9d[s2 only1 :5 he came  
to ! w9d[1 8 fa!r told him to be v      
c>eful n to set ! curta9 on fire4       
,rollo want$ ,na?an to let him try x    
once2 & s ,na?an gave him ! lamp4 ,he   
said he meant to make a crevice2 & s he 
pu%$ up ! w9d[ a v little way1 & held ! 
lamp opposite to ! op5+4 ,! air press$ !
 flame 9 t[>ds ! room1 9 all cases4  ,p 
commonly say1 t x is drawn 91 said 8    
fa!r1 b t is n /rictly correct2 x is    
really press$ 94 ,!re is no p[] (       
attraction1 9 ! air t is 9 ! room1 to   
draw 9 ! air t is out ( doors1 ?r\gh !  
crevices2 b ! air t is out ( doors1 is s
 heavy1 t x presses 91 & cr[ds ! w>m &  
light air up ! *imney4  ,& n[1 said 8   
fa!r1 ,i _c tell y any?+ m ?is ev5+2 b1 
if y rememb] ?is1 ,i w give y "s fur!r  
in/ruction ano!r "t4  ,well1 sir1 said  

,na?an1 only ,i wi% y w\ld tell me a    
little /ory1 z y did la/ ev5+4 ,h n ,i  
be5 /ill8  ,8 fa!r _h notic$1 t he _h   
be5 v /ill & att5tive1 b did n ?9k be=e1
 t x 0 9 expectation ( be+ rew>d$ ) a   
/ory4  ,well1 said 8 fa!r1 ,i w tell y a
 /ory1 or give y a little advice4 ,h[   
%\ld y l a little advice8  ,well1 fa!r1 
a little advice2 j :i* y please4  ,i    
advise y1 !n1--let me see1--:at %all ,i 
advise y8--,no1 on ! :ole1 ,i w tell y a
 /ory4 ,once !re 0 a man1 & he 0 a      
philosoph]4 ,he und]/ood all t ,i h be5 
expla9+ to y ab\t ! air be+ light :5 x 0
 hot4 ,s he got "s v ?9 pap]1 & made a  
l>ge pap] bag4 ,he cut ! pap] v         
curi\sly1 & pa/$ x toge!r at ! edges 9  
su* a way1 t ! bag1 :5 x 0 done1 0 r\nd1
 l a ball2 & x _h a r\nd op5+ at !      
bottom ( x4 ,9 fact1 x 0 a l>ge pap]    
ball4  ,h[ l>ge 0 x8 said ,na?an4  ,x 0 
s l>ge1 t1 :5 x 0 swell$ out full1 x    
w\ld h be5 high] ?an y\r head4  ,o1 :at 
a l>ge ball6 said ,na?an4 ,b :at 0 x =8 
,:y1 ! man ?\ght1 z hot air is light]   

?an cool air1 & floats up1 t p]haps1 if 
he c\ld fill 8 pap] ball ) hot air1 x   
w\ld g up too4  ,& did x8 said ,na?an4  
,yes1 said 8 fa!r4 ,he fill$ x ) hot    
air2 & ! hot air 0 s light1 t x rose up 
& c>ri$ ! pap] ball ) x4  ,h[ did he get
 ! hot air into x8 said ,rollo4  ,:y1 he
 held x ov] a little fire1 ) ! m\? d[n4 
,!n ! hot air f ! fire w5t up into !    
ball1 & swell$ x out full4  ,h[ high did
 x g8 said ,na?an4  ,o1 x so>$ away1    
said 8 fa!r1 away up into ! air1 v high2
 until at l5g? x got cool1 & !n x came  
d[n4  ,i %\ld l to see su* a ball z t1  
said ,na?an4  ,su* a ball z t is call$ a
 balloon1 said 8 fa!r4  ,i wi% ,i c\ld  
see a balloon1 said ,na?an4             
,,que/ions4      ,:at is ! important    
diff]5ce betwe5 air & wat]1 :i*     0   
expla9$ 9 ! la/ *apt]1 & m5tion$ 9 ?is8 
,does     ! air t5d to exp& aga9 aft] x 
is compress$8 ,:at is     ?is prop]ty ( 
! air call$8 ,is ! air ar\nd u already  
cond5s$1 or is x 9 its natural /ate8    
,:at causes x to be     cond5s$8        

,suppose a ?9 glass vessel 7 to be fill$
 )     air1 & ano!r ) wat]1 & ! air     
sudd5ly remov$ f     ! room ar\nd !m2   
:at w\ld be ! effects8 ,:at effect      
does heat h ^u ! expansibility ( air8   
,h[ may ?is     effect be made to appe> 
ov] a lamp8 ,9 a *imney8 ,:at 0 !       
/ory :i* ,rollo's fa!r told ,na?an8     
,,*apt] ,,vii4  ,,philosophical         
,,discussion4   ,"s "t aft] ?is1 ,rollo1
 & ,na?an1 & ,james1 7 play+ 9 ! %$1 "o 
pleasant morn+ 9 ! spr+4 ,!y 7 build+ ) 
/icks ( wood1 :i* !y pil$ 9 v>i\s ways1 
s z to make h\ses4 ,!y took c>e n to    
pile ! wood1 9 any case1 high] ?an _!   
%\ld]s1 = ,jonas _h told !m t1 if !y    
pil$ ! wood high] ?an t1 !re w\ld be    
dang] ( its fall+ d[n ^u !m4  ,aft] "s  
"t1 ,rollo w5t into ! h\se a few m9utes1
 & ,james & ,na?an w5t to ! op5 "p ( !  
%$1 & began to look out ( doors4 ,! sun 
0 %9+ pleasantly1 b ! gr\nd 0 wet1 be+  
cov]$ ) /reams & pools ( wat]1 & melt+  
sn[-banks4  ,:at a pleasant day6 said   
,james4 ,i wi% x 0 dry1 s t we c\ld g   

out bett]4  ,i wi% we c\ld fly1 said    
,na?an1 = x is v pleasant up 9 ! air4   
,i wi% we _h a balloon1 said ,james4 ,if
 we _h a balloon1 we c\ld g up 9 ! air1 
easi] ?an to fly4  ,o ,james1 said      
,na?an1 y c\ld n get into a balloon if y
 _h "o4  ,:y n8 said ,james4  ,because1 
said ,na?an1 x w\ld n be big en\gh4     
,:y1 ,na?an1 said ,james1 a balloon is  
bigg] ?an ?is h\se4  ,o ,james1 x is n  
high] ?an my head4  ,x is1 said ,james1 
,i "k x is4 ,i h read ab\t balloons     
bigg] ?an a h\se4  ,& my fa!r1 said     
,na?an1 putt+ d[n 8 foot 9 a v positive 
air1 my fa!r told me himself1 t a       
balloon 0 ab\t z high z my head4  ,!    
boys disput$ "s "t long] ^u ! subject1 &
 f9ally1 :5 ,rollo came out ( ! h\se1 !y
 bo? appeal$ to him v eag]ly to settle !
 dispute4  ,isn't a balloon high] ?an   
,na?an's head8 said ,james4  ,is x z    
high z a h\se8 said ,na?an4  ,:y1 ,i "k1
 said ,rollo1 t a man made a balloon    
once ab\t z high z ,na?an's head1       
because my fa!r said s2 b p]haps x 0 a  

little "o4  ,yes1 said ,james1 ,i "k x  
mu/ be a little "o2 = balloons are big  
en\gh = m5 to g up 9 !m4  ,o ,james1    
said ,na?an1 ,i don't believe x4        
,besides1 ! fire w\ld burn 'em4  ,:at   
fire8 said ,james4  ,! fire !y burn "u !
 balloons1 to make ! air hot1 said      
,na?an4  ,i don't believe !y h any fire1
 said ,james4  ,j !n ,na?an1 happ5+ to  
look ar\nd1 saw ,jonas /&+ beh9d !m2 he 
_h j come out ( ! h\se1 & 0 go+ out to 8
 "w4 ,he>+ ! boys engag$ 9 ?is dispute1 
he /opp$ to li/54 ,! boys bo? appeal$ to
 ,jonas4  ,jonas he>d all t !y _h to    
say1 & !n repli$1--  ,i _c tell y mu*   
ab\t go+ up 9 a balloon1 b ,i c tell y  
some?+ ab\t gett+ along pleasantly d[n  
"h ^u ! e>?1 :i* ,i ?9k may be ( s]vice 
to y4  ,:at is x8 said ,james4  ,:y1 t y
 w nei!r ( y get along v pleasantly     
until y c be> to h any body else mi/ak51
 )\t contradict+ !m4 ,james1 y ?9k      
,na?an is mi/ak5 ab\t ! size ( a        
balloon1 d y8  ,yes1 ,i "k he is1 said  
,james4  ,well1 said ,jonas1 n[ :y n let

 him rema9 mi/ak58  ,:y1--,i don't "k1  
said ,james4  ,he isn't will+ to be     
conv9c$1 is he1 t a balloon is z big z a
 h\se8  ,no1 said ,james1 he is n4  ,!n 
:y don't y let him rema9 unconv9c$8 ,:y 
%\ld y insi/ on sett+ him "r1 :5 he     
don't want to be set "r8  ,& y1 ,na?an1 
suppose t ,james is mi/ak51 9 ?9k+ t !  
balloon is s big4  ,yes1 said ,na?an1 & 
t m5 c get into x1 & g up 9 ! air4      
,well1 n[1 if he wants to believe t     
balloons are s big1 :y are y n will+ t  
he %\ld8 ,:y %\ld y insi/ ^u x t he %\ld
 "k t !y are small]8  ,because ,i "k1   
said ,na?an1 v positively1 t !y are     
small2 &1 besides1 ! pap] w\ld n be     
/rong en\gh to be> a man4  ,i did n ask 
y1 said ,jonas1 :y y believ$ t m5 c\ld n
 g up 9 balloons1 b :y y 7 s anxi\s to  
make ,james believe s4 ,:y n let him be 
mi/ak58  ,:y--because1 said ,na?an4  ,y 
see1 ,na?an1 cont9u$ ,jonas1 ! _w is    
full ( p t are cont9ually mi/ak52 & if y
 g ab\t try+ to set !m all "r by disput+
 !m1 y'll h a h>d r[ to hoe4  ,a h>d    

:at8 said ,na?an4  ,a h>d r[ to hoe1    
repeat$ ,jonas4 ,x's nev] ( any s]vice  
to attempt to conv9ce p t don't want to 
be conv9c$2 especially if !y are wrong4 
,especially if !y are wrong6 repeat$    
,rollo1 9 a/oni%m5t4  ,yes1 repli$      
,jonas4 ,! v wor/ "t to argue ) a boy1  
is :5 he is wrong1 & does n want to be  
set "r4 ,x is a great deal h>d] to get  
along 9 argum5t ) "o :o is "r1 ?an ) "o 
:o is wrong2 = ! "o :o is wrong1        
disputes2 ! "o :o is "r1 reasons4       
,well1 ,jonas1 said ,james1 :i* ( u 0   
disput+8  ,bo? ( y1 said ,jonas4  ,bo? (
 u1 said ,james2 b y said t only ! "o :o
 0 wrong1 disput$4  ,well1 repli$       
,jonas1 y 7 bo? wrong4  ,bo? wrong6 ,o  
,jonas6 said ,james4  ,yes1 bo? wrong1  
repli$ ,jonas2 & s say+1 he 0 go+ away  
to 8 "w4  ,b /op a m9ute long]1 said    
,james1 & tell u h[ x is ab\t ! balloon2
 we want to "k4  ,o no1 said ,jonas1 y  
don't want to "k2 y want to conqu]4     
,:at d y mean by t8 said ,na?an4  ,:y1 y
 don't really wi% to le>n any ?+2 b y   

want to h me decide ! case1 because ea* 
( y hopes t ,i %all decide 9 8 favor4 ,y
 want ! pleasure ( a victory1 n !       
pleasure ( acquir+ k4  ,no1 ,jonas1 said
 ,na?an1 we d really want to "k4  ,well1
 said ,jonas1 ,i c't /op n[ to tell y2  
p]haps ,i w ?is ev5+2 b ,i advise y     
always1 aft] ?is1 n to contradict p1 &  
dispute ) !m1 :5 !y say ?+s t y don't   
believe4 ,d z ! g5tleman did1 :5 ! man  
said ! moon 0 a fire4  ,:at did he d8   
said ,rollo4  ,:y1 he let him say x z   
mu* z he want$ to4  ,tell u all ab\t x1 
said ,james4  ,well1 !n1 said ,jonas1   
once !re 0 a man1 & he saw ! moon com+  
up beh9d ! trees1 & ?\ght x 0 a l>ge    
h\se burn+ up4 ,he w5t along a little   
way1 & he met a vulg> fell[1 rid+ 9 a   
c>riage4  ,rid+ 9 a c>riage6 repeat$    
,rollo1 a/oni%$4  ,yes1 said ,jonas1    
h&somely dress$4 ',sir1' said ! man1    
'see t great fire6'  ',x isn't a fire1 y
 fool1' said ! vulg> fell[2 'x's no?+ b 
! moon4'  ',! moon6 no x isn't1' said ! 
man2 'x is a mon/r\s great fire4 ,don't 

y see h[ x blazes up8'  ',x is n a fire1
 ,i tell y1' said ! vulg> fell[4  ',i   
tell y 'tis1' said ! man4  ',y don't "k 
any ?+ ab\t x1' said ! vulg> fell[4  ',&
 y don't "k ! moon f a h\se on fire1'   
said ! man1 & s pass$ on4  ,a m9ute or  
two aft] ?is1 he met a g5tleman driv+ a 
team4  ,a g5tleman driv+ a team6 said   
,james4  ,yes1 said ,jonas1 ) a frock   
on4 ,he 0 tir$ & we>y1 hav+ driv5 all   
day4 ,! man ask$ him if he did n see t  
h\se on fire4  ',ah1' said ! g5tleman1  
',i ?\ght x 0 ! moon4'  ',no1' said !   
man1 'x is a h\se on fire4'  ',well1'   
said ! g5tleman1 ',i am v sorry if x is4
 ,i hope !y'll be able to put x out6'   
,s say+1 he />t$ 8 team along1 & bade ! 
man good ev5+4  ,jonas !n1 hav+ f9i%$ 8 
/ory1 /epp$ out ( ! %$1 & w5t along     
t[>ds ! b>n2 ,na?an call$ out aft] him  
to say1--  ,well1 ,jonas1 ,i don't      
und]/& h[ ! g5tleman came to be driv+ a 
team all day4  ,jonas did n reply to    
?is1 b only began to laugh he>tily1 & to
 walk on4 ,na?an turn$ back into ! %$1  

say+1 he did n see :at ,jonas 0 laugh+  
at4  ,! boys want$ v mu* to h ! "q ab\t 
! balloon settl$2 &1 aft] "s fur!r      
conv]sation on ! subject1 !y conclud$ to
 g 9 & ask _! "m4 ,s !y all ?ree w5t 94 
,rollo propos$ ?is plan1 & he l$ ! way  
into ! h\se4 ,he f\nd 8 "m sitt+ 9 !    
p>lor at h] "w4  ,well1 boys1 said %e1 h
 y got tir$ ( y\r play8  ,no1 "m1 said  
,rollo1 b we want to "k ab\t balloons3  
h[ big are !y8  ,o1 "s ( !m1 said %e1   
are v l>ge4  ,a9't !y z big z ?is h\se8 
said ,james4  ,yes1 ,i believe !y h be5 
made z big1 said %e4  ,b1 "m1 said      
,na?an1 fa!r told me1 8 v self1 t !y 7  
no high] ?an my head4  ,o no1 said 8 "m2
 he said t a man made "o :i* 0 ab\t z   
high z y\r head2 b t 0 only a little "o1
 = exp]im5t4 ,:5 !y make l>ge ones1 =   
use1 !y are z high z ?is h\se4  ,= use1 
"m8 :at use8 said ,na?an4  ,m5 g up 9   
!m1 don't !y1 aunt8 said ,james4  ,n 9  
!m1 exactly1 said 8 aunt4 ,!y c\ld n    
live 9 !m1 b !y g up by means ( !m4     
,h[8 said ,na?an4  ,:y1 !y h a k9d (    

basket1 :i* hangs d[n bel[ ! balloon1 & 
!y get into t4  ,i knew !y c\ld n get   
into ! balloon1 said ,na?an4  ,!n y h _h
 a dispute ab\t x1 said 8 "m4           
,:y1--yes1 said ,na?an1 ) hesitation1 we
 disput$ a little4  ,i am sorry to he>  
t1 said 8 "m1 = disput+ seldom does any 
good4 ,! fact is1 h[ev]1 t m5 h (t5 be5 
c>ri$ up by balloons1 b !y nev] get into
 !m4 ,!y c\ld n live 9 !m4 ,!y c\ld n   
brea! ! k9d ( air :i* balloons are fill$
 )4  ,x is hot air1 said ,na?an4  ,no1  
said 8 "m1 ! k9d ( balloon :i* y\r fa!r 
told y ( 0 fill$ ) hot air2 b ! balloons
 :i* p g5]ally use to g up )1 are fill$ 
) ano!r k9d ( air1 :i* is v light :5 x  
is cool4 ,!y make an enorm\s bag ( silk1
 & fill x ) ?is light air1 :i* !y make 9
 b>rels2 & !n1 :5 ! bag is fill$1 x     
floats away above _! heads1 & pulls h>d 
^u ! fa/5+4 ,!re is a net all ov] x1 & !
 ends ( ! net are drawn toge!r bel[1 &  
are fa/5$ to ! basket1 or c>1 :]e ! man 
is to sit4 ,:5 x is all ready1 ! man    
gets into ! c>1 & !n !y let g ! fa/5+s1 

& away ! great bag goes1 & c>ries ! man 
) x1 away up into ! air4  ,& !n h[ does 
he get d[n8 said ,na?an4  ,:y1 he c op5 
a hole 9 ! bag1 & let "s ( ! light air  
out2 & !n he beg9s to come d[n sl[ly4   
,if he comes d[n too fa/1 or if he f9ds 
t he is com+ into ! wat]1 or d[n ^u any 
dang]\s place1 !re is a way by :i* he c 
make 8 balloon g up aga94  ,:at way is  
x1 aunt8 said ,james4  ,:y1 he has "s   
bags ( s& 9 8 balloon1 said 8 aunt2 & ! 
balloon is made l>ge en\gh to c>ry him &
 8 s&-bags too4 ,!n1 if he f9ds t he is 
com+ d[n too fa/1 he j p\rs out "s ( 8  
s&1 & t makes 8 c> light]2 & s ! balloon
 w c>ry him up aga94  ,t's a good plan1 
said ,rollo4  ,yes1 said 8 "m2 ! reason 
:y he takes s& is1 because t w n hurt   
any body by fall+ ^u !m4 ,if he %\ld    
take /ones1 or any o!r heavy1 solid ?+s1
 & %\ld drop !m out ( 8 c>1 !y might    
possibly fall ^u "s body1 & hurt !m4 ,s 
he takes s& 9 bags1 &1 :5 he wants to   
light5 8 balloon1 he j p\rs ! s& out4   
,rollo's "m !n told ! boys t !re 0 a    

l>ge book1 :i* _h sev]al /ories 9 x (   
m5's go+ up 9 balloons1 & t %e w\ld get 
x = !m4 ,s %e left h] "w1 & w5t out ( ! 
room2 b 9 a few m9utes %e return$1 br++ 
) h] two v l>ge1 squ>e books1 ) blue    
cov]s4 ,"o ( !m _h pictures 9 x1 & among
 ! re/ !re 7 pictures ( balloons4 ,%e   
op5$ ! o!r book1 & f\nd ! place :]e !re 
0 an acc\nt ( balloons1 & %e %[$ ! place
 to ,rollo4  ,%e told ! boys t !y _h    
bett] g out 9 ! kit*51 or into ! %$1 if 
x 0 w>m en\gh1 & read ! acc\nt4  ,y &   
,james1 ,rollo1 said %e1 c read by      
turns1 & let ,na?an he>4 ,!n1 :5 !      
plates are ref]r$ to1 y mu/ look into ! 
o!r book & f9d !m4  ,yes1 said ,rollo1  
we w2 only1 "m1 if y w\ld let u sit d[n 
"h & read x--& !n1 if !re is any ?+ :i* 
we _c und]/&1 y c tell u :at x means4   
,v well1 repli$ 8 "m1 y may sit d[n "h  
^u ! s(a4  ,s ! boys sat d[n ^u ! s(a4  
,!y put ,na?an betwe5 !m1 s t he might  
look ov]4 ,rollo & ,james took turns to 
read1 & !y cont9u$ read+ ab\t balloons =
 m ?an an h\r4 ,!re 0 "o /ory ( a %eep1 

:i* a man c>ri$ up 9 8 c>1 "u a balloon1
 & !n let him drop1 f a great height1 ) 
a p>a*ute ov] 8 head1 to make him fall  
g5tly4 ,& he did fall g5tly4 ,he came   
d[n to ! gr\nd )\t be+ hurt at all4     
,,que/ions4      ,h[ 0 ! subject (      
balloons introduc$ into !               
conv]sation8 ,:at 0 ,na?an's op9ion ab\t
 ! possibility (     be+ c>ri$ up by a  
balloon8 ,:at 0 ! dispute ab\t !        
size ( balloons8 ,:at 0 ,na?an's        
evid5ce8 ,:at 0 ,james's     evid5ce8   
,:at did ,jonas say :5 !y appeal$ to    
him8 ,:at 0     ! /ory t he relat$8 ,:i*
 ( ! boys did he f9ally say     0 wrong8
 ,:om did ! boys appeal to aft]w>ds8    
,:at did     ,rollo's "m say ab\t ! size
 ( balloons8 ,h[ did %e say     t l>ge  
balloons 7 fill$8 ,h[ c !y make !       
balloon     come d[n8 ,h[ c !y make x g 
up aga91 if !y wi% to d     s8          
,,*apt] ,,viii4  ,,tasks4   ,a few days 
aft] ?is1 !re comm5c$ a long /orm ( ra94
 ,rollo & ,na?an 7 glad to see x on "o  
acc\nt1 = _! "m told !m x w\ld melt away

 ! sn[1 & br+ on ! spr+4 ,! fir/ day1 !y
 amus$ !mselves pretty well1 dur+ _!    
play h\rs1 9 ! %$ & 9 ! g>ret2 b on !   
second day1 !y began to be tir$4 ,na?an 
came two or ?ree times to 8 "m1 to ask  
h] :at he %\ld d2 & ,rollo himself1     
?\gh1 be+ old]1 8 res\rces might        
naturally be expect$ to be great]1 seem$
 to be out ( employm5t4  ,at la/1 _! "m 
propos$ t !y %\ld come & sit d[n by h]1 
& %e w\ld tell !m some?+ m ab\t ! air4  
,h[ %\ld y l t1 ,rollo8 said %e4  ,:y1  
pretty well1 said ,rollo2 b he spoke 9  
an indiff]5t & hesitat+ mann]1 :i* %[$ t
 he did n feel mu* int]e/ 9 8 "m's      
proposal4  ,i c't und]/& v well ab\t !  
air1 said ,na?an4  ,_! "m1 f9d+ t ! boys
 did n wi% mu* to he> any conv]sation   
ab\t ! air1 said no?+ m ab\t x j !n1 &  
,rollo & ,na?an got "s books1 & began to
 read2 b someh[ or o!r1 !y did n f9d !  
books v int]e/+1 & ,rollo1 aft] read+ a 
little :ile1 put d[n 8 book1 & w5t to ! 
w9d[1 say+ t he wi%$ x w\ld /op ra9+4   
,na?an foll[$ him1 & !y bo? look$ out ( 

! w9d[ ) a we>y & disconsolate air4  ,_!
 "m look$ at !m1 & !n said to h]self1   
,!y h n en]gy & decision en\gh to set   
!mselves ab\t some?+ useful1 & 9 fact ,i
 ought n to expect t !y %\ld h4 ,i mu/  
supply ! want1 by my en]gy & decision4  
,!n %e said al\d to ,rollo & ,na?an1--  
,i want y1 boys1 to g up into ! g>ret1 &
 "u ! sky-light y w see a l>ge box4 ,op5
 ?is box1 & y w f9d x fill$ ) fea!rs4   
,select f ^! fea!rs ?ree or f\r :i* are 
! mo/ d[ny & s(t ab\t ! /em1 & br+ !m   
d[n to me4  ,:at are !y =8 said ,rollo4 
,i w tell y1 repli$ 8 "m1 :5 y h br\ght 
!m to me4  ,s ,rollo & ,na?an w5t up    
into ! g>ret1 & br\ght ! fea!rs4 ,!y    
c>ri$ !m to _! "m4 ,%e said t !y w\ld   
answ] v well1 & %e laid !m g5tly d[n ^u 
! table4  ,!n %e took up h] scissors1 & 
began to cut (f "s ( ! lighte/ d[n1     
say+1 at ! same "t1--  ,n[1 *ildr51 ,i  
am go+ to give y "s writ+ to d1 ab\t !  
air4  ,writ+8 said ,rollo4  ,yes1 said 8
 "m4 ,i am go+ to expla9 to y some?+    
ab\t ! air1 & !n y mu/ write d[n :at ,i 

tell y4  ,b ,i c't write1 said ,na?an4  
,no1 said 8 "m1 b y c tell ,rollo :at y 
w\ld wi% to say1 & he w write x = y4    
,:y1 "m1 said ,rollo1 ,i don't ?9k t t w
 be v good play4  ,no1 repli$ 8 "m1 ,i  
don't give x to y = play4 ,x w be q h>d 
"w4 ,i hope y w take hold ( x           
en]getically1 & d x well4  ,fir/1 said  
%e1 ,i am go+ to p]=m "s exp]im5ts = y1 
be=e ,i tell y :at ,i want y to write4  
,by ?is "t1 %e _h cut (f ! d[ny "p (    
sev]al fea!rs1 & _h laid !m toge!r 9 a  
little heap4 ,!n %e took a f9e ?read1 & 
ti$ ?is little tuft ( d[n to ! end ( x4 
,!n %e took up ! ?read by ! o!r end1 &  
h&$ x to ,rollo4  ,!re1 ,rollo1 said %e4
 ,n[1 d y rememb] :at y\r fa!r told y1 !
 o!r day1 ab\t ! effect ( heat ^u air8  
,x makes x light1 said ,rollo4  ,& :y   
does x make x light8 ask$ 8 "m4  ,:y1 ,i
 don't exactly recollect1 said ,rollo4  
,because x swells x2 x makes x exp&2 s t
 ! same quantity ( air spreads ov] a    
great] space2 & ?is makes x light]1 ,b  
cool or cold air is heavi]1 because x is

 m cond5s$4  ,n[1 :]ev] !re is heat1    
cont9u$ 8 "m1 ! air is made light]1 & ! 
cool & heavy air ar\nd presses 9 "u x1 &
 buoys x up4 ,?is produces curr5ts (    
air4 ,y recollect1 don't y1 t y\r fa!r  
expla9$ all ?is to y ! o!r day8  ,yes1  
said ,rollo1 ,i rememb] x4  ,well1 said 
8 "m1 n[ y & ,na?an may take ?is little 
tuft1 & c>ry x ab\t to v>i\s places1 &  
hold x up by its ?read1 & x w %[ y ! way
 ! air is mov+2 & !n y may come to me1 &
 ,i w expla9 to y :y x moves t way4     
,well1 said ,rollo1 come1 ,na?an1 let u 
g4 ,fir/ we w hold x at ! key-hole ( !  
door4  ,rollo held ! end ( ! ?read up   
opposite to ! door1 9 su* a way1 t !    
tuft 0 exactly be=e ! key-hole4 ,! tuft 
0 at once bl[n out into ! room4  ,o1    
see1 ,na?an1 h[ x bl[s out4 ,! air is   
com+ 9 ?r\gh ! key-hole4  ,yes1 said 8  
"m2 :5 !re is a fire 9 ! room1 & none 9 
! entry1 !n ! cold air 9 ! entry runs   
d[n ?r\gh ! key-hole into ! room4  ,x   
don't run d[n1 "m1 said ,rollo2 x bl[s  
"r 9 /raight4  ,p]haps ,i ought to h    

said x sp\ts 91 said 8 "m1 j z ! wat]   
did f ! hole 9 y\r dam4 ,&1 n[1 %e      
cont9u$1 come & hold ! tuft ne> !       
*imney4  ,rollo did s2 & he f\nd t x 0  
c>ri$ 91 prov+1 z _! fa!r _h %[$ !m     
be=e1 t ! heavy1 cold air1 press+ into !
 room1 cr[d$ ! w>m1 light air up !      
*imney4  ,n[1 %\ld y ?9k1 said _! "m1 t 
! cold air c\ld come 9 ?r\gh ! key-hole1
 z fa/ z x goes up ! *imney8  ,bo?      
,rollo & ,na?an ?\ght t x c\ld n4  ,!n g
 all ar\nd ! room1 said %e1 & see if y c
 f9d any o!r place1 :]e x comes 94 ,= x 
is pla91 y see1 t ! light air _c be     
driv5 up *imney any fa/] ?an cold &     
heavy air comes 9 to drive x up & take  
its place4  ,s ,rollo & ,na?an w5t ar\nd
 ! room1 hold+ _! tuft at all ! places  
!y c\ld f9d1 :]e !y suppos$ !re c\ld be 
op5+s = ! cold air to press 94 ,!y f\nd 
curr5ts com+ 9 ar\nd ! w9d[s1 & by !    
h+es ( ! doors2 & at l5g? ,rollo said1  
he meant to op5 ! w9d[ a little way1 &  
see if ! cold air f out ( doors w\ld n  
press 9 !re too4 ,he did s1 & ! tuft 0  

bl[n 9 v f>1 %[+ t ! cold air f out (   
doors press$ 9 v /rongly4  ,n[1 if all  
^! op5+s 7 to be /opp$1 said _! "m1 !n  
no cold air c\ld cr[d into ! room2 & (  
c\rse ! hot air c\ld n be buoy$ up into 
! *imney1 & a great deal ( ! hot air &  
smoke w\ld come into ! room4 ,?is v (t5 
happ5s :5 h\ses are fir/ built1 & !     
rooms are v tight4  ,b n[1 ,rollo1 %e   
cont9u$1 suppose t ! door 0 op5$ wide2  
!n %\ld n y ?9k t m cold & heavy air    
w\ld press 91 ?an c\ld g up ! *imney8   
,yes1 "m1 a great deal m1 said ,rollo4  
,try x1 said 8 "m4  ,s ,rollo op5$ !    
door1 & held 8 tuft 9 ! passage-way2 &  
he f\nd t ! air 0 press+ 9 v /rongly    
?r\gh ! op5 space4 ,:]ev] he held x1 x 0
 bl[n into ! room a great deal1 %[+ t ! 
heavy air press$ 91 9 a torr5t4  ,n[1 z 
mu* w>m air mu/ g out1 said %e1 z !re is
 cold air com+ 92 b ,i don't believe t y
 & ,rollo c f9d out :]e x goes out4     
,rollo look$ all ar\nd ! room1 b he c\ld
 n see any op5+1 except ! *imney & !    
door1 & ! little crevices1 :i* he _h    

obs]v$ ab\t ! f9i%+ ( ! room4 ,he said  
he c\ld n f9d any place4  ,8 "m !n told 
him to hold 8 tuft d[n ne> ! bottom ( ! 
door-way4 ,he did s1 & f\nd t ! curr5t (
 air 0 !re v /rong4 ,! tuft swung into !
 room v f>4  ,n[ hold x up a little     
high]1 said 8 "m4  ,rollo obey$1 & he   
f\nd t x 0 /ill press$ 91 b n s h>d4    
,high]1 said 8 "m4  ,rollo rais$ x z    
high z he c\ld rea*4 ,! ?read 0 ( su* a 
l5g?1 t ! tuft hung ab\t opposite to 8  
%\ld]4 ,! tuft 0 /ill press$ 91 b n     
ne>ly z f> z be=e4  ,s y see1 said 8 "m1
 t ! air p\rs 9 ! fa/e/ at ! l[e/ po9t1 
:]e ! weight & pressure ( ! air above x 
are ! greate/2 j z1 9 y\r dam1 ! wat] f 
! l[e/ holes sp\t$ out ! f>!/4  ,yes1   
said ,rollo1 x is v mu* l t4  ,n[1      
cont9u$ 8 "m1 y see t a great deal ( air
 comes 91 & if y look up *imney1 y w see
 t !re is sc>cely room = s mu* to g up  
!re2--& yet j z mu* mu/ g out z comes 94
  ,get ! /ep-ladd]1 said 8 "m1 & /& up  
^u x1 & s hold y\r tuft 9 ! upp] "p ( ! 
door-way4  ,!re 0 9 ! *9a closet a small

 piece ( furniture1 v conv5i5t ab\t a   
h\se1 call$ a /ep-ladd]4 ,x consi/$ (   
two wood5 /eps1 & 0 made & kept !re to  
/& ^u1 9 ord] to rea* ! high %elves4    
,rollo br\ght out ! /ep-ladd]1 & plac$ x
 9 ! door-way1 & !n asc5d$ x4 ,f ! top  
he c\ld rea* ne>ly to ! top ( ! door2 b 
!n1 z 8 tuft 0 at ! end ( ! ?read1 x    
hung d[n1 ( c\rse1 "s little di/ance    
bel[ 8 head4  ,:y1 "m1 said ,rollo1 x   
goes out4  ,yes1 repeat$ ,na?an1 x goes 
out4  ,9 fact1 ,rollo f\nd t ! tuft1    
in/ead ( sw++ into ! room1 0 c>ri$ out  
t[>ds ! entry4  ,y h f\nd out1 !n1 said 
8 "m1 :]e ! hot air ( ! room goes to1 to
 make room = ! cold air1 t comes 9 f !  
entry4  ,yes1 out into ! entry1 said    
,rollo4  ,?r\gh ! upp] "p ( ! door1 said
 8 "m4 ,suppose ! entry 7 full ( wat]1 &
 ! p>lor full ( air1 & ! door 0 %ut1 & !
 door & ! walls 7 wat]-tight4 ,n[1 if y 
7 to op5 ! door1 y see t ! wat]1 be+    
heavi]1 w\ld fl[ 91 ?r\gh ! l[] "p ( !  
door-way1 into ! p>lor1 & ! air f !     
p>lor w\ld fl[ out1 ?r\gh ! upp] "p ( ! 

door-way1 into ! entry4 ,! wat] w\ld    
settle d[n 9 ! entry1 until x 0 level 9 
bo? rooms1 & !n ! l[] p>ts ( bo? rooms  
w\ld be fill$ ) wat]1 & ! upp] p>ts )   
air4  ,yes1 "m1 said ,rollo4  ,& x is j 
s ) w>m & cold air4 ,if ! p>lor is fill$
 ) w>m air1 made s by ! fire1 & ! entry 
) cold air1 & y op5 ! door1 !n ! cold   
air1 be+ heavi]1 w s9k d[n1 & spread ov]
 ! floor ( bo? rooms2 & ! w>m air1 be+  
light1 w spread ar\nd ov] ! upp] p>ts ( 
bo? rooms2 & ?is w make a curr5t ( air1 
9 at ! bottom ( ! door-way1 & out at !  
top4  ,n[1 cont9u$ 8 "m1 let me         
recapitulate :at ,i h taught y4  ,:at d 
y mean by recapitulat+ x8 said ,na?an4  
,:y1 tell y ! sub/ance ( x1 s t y c     
write x d[n easi]4  ,o1 ,i c write x n[1
 said ,rollo2 ,i rememb] x all4  ,c y   
rememb] x1 ,na?an8 said 8 "m4  ,p]haps  
,i c rememb] "s ( x1 said ,na?an4  ,s   
,rollo & ,na?an w5t out into ano!r room1
 :]e ,rollo kept 8 desk1 & !y rema9$ !re
 half an h\r4 ,:5 !y return$1 !y br\ght 
_! "m two pap]s4  ,_! "m op5$ ! l>ge/   

pap]1 & read z foll[s3--      ,we took a
 tuft ( d[n1 ti$ to a ?read1 & held x 9 
!     cracks & places t ! air came 9 at1
 to see :i* way x     w5t4 ,we held x at
 ! w9d[1 & x blew 9 v /rong4 ,at     !  
bottom ( ! door1 x blew 9 v /rong too2 b
 at !     top1 x blew out1 into ! entry4
 ,s1 :5 ! entry is full     ( cold air1 
& ?is room full ( w>m1 ! cold air w     
press     9 & drive out "s ( ! w>m air1 
into ! entry4            ,,rollo4  ,!   
o!r pap] 0 also 9 ,rollo's h&writ+1 & 0 
z foll[s3--      ,if ! entry 0 full (   
wat]1 & ! p>lor full ( air1 &     !     
walls 7 wat]-tight1 & y 7 to op5 ! door 
betwe5 ! two rooms1 ! wat] w\ld fl[ into
 ! p>lor d[n     bel[1 & ! air w\ld fl[ 
into ! entry up above4 ,we tri$     x ) 
a tuft4            ,,na?an4             
,,que/ions4      ,:y 7 ,rollo & ,na?an  
at fir/ glad to see ! ra98 ,:at     did 
_! "m say to h]self on ! second day1 :5 
%e     obs]v$ _! we>y & li/less         
appe>ance8 ,:at did %e at     fir/      
direct !m to d8 ,h[ did %e prep>e ! d[ny

 tuft8     ,:at exp]im5ts did !y p]=m ) 
x8 ,:]e did !y f9d     t ! air came 9   
:i* cr[d$ ! w>m air up ! *imney8        
,:at exp]im5ts did !y p]=m :5 ! door 0  
op5$8     ,:i* way did !y f9d t ! curr5t
 ( air 0 sett+ at     ! l[] "p ( !      
door-way8 ,:i* way did ! curr5t set at  
! upp] "p ( ! door-way8 ,:at did ,rollo 
write 9 8     ex]cise8 ,:at 0 writt5 9  
,na?an's ex]cise8     ,,*apt] ,,ix4     
,,burn+4   ,aft] ! sn[ _h all gone (f1 &
 ! gr\nd 0 dry1 ,jonas pil$ up a heap ( 
/umps1 roots1 & decay$ logs1 9 a field1 
n f> f ! brook1 & "o sunny aft]noon he &
 ,rollo w5t d[n to set ! heaps on fire4 
,jonas set "o on fire1 & !n he told     
,rollo t he might set ano!r on fire4    
,aft] ?is1 ,jonas employ$ himself 9     
ga!r+ up /icks1 bu%es1 roots1 & o!r su* 
?+s t lay scatt]$ ab\t ! field1 & putt+ 
!m ^u ! fires1 :ile ,rollo amus$ himself
 9 any way he pleas$4  ,aft] a "t1      
,rollo f\nd1 on ! m>g9 ( ! field1 ne> ! 
edge ( a wood1 an old /ump1 tall] ?an he
 01 mu* decay$4 ,!re 0 a hole 9 ! top4  

,rollo climb$ up s t he c\ld put a /ick 
91 & run x d[n1 to see h[ f> d[n ! hole 
ext5d$4 ,he f\nd t x ext5d$ d[n v ne> to
 ! bottom4  ,!n ,rollo call$ out to     
,jonas1 ) a l\d voice1 say+1--  ,jonas1 
,i h f\nd a holl[ /ump "h4 ,x is holl[  
away d[n to ! bottom4 ,may ,i build a   
fire 9 x8  ,yes1 said ,jonas1 if y c4   
,rollo accord+ly w5t to ! ne>e/ fire1 & 
got a quantity ( bir* b>k1 :i* he _h    
collect$ !re to aid him 9 k9dl+ 8 fires4
 ,he light$ "o piece1 & put x ^u ! end (
 a /ick1 & c>ri$ x to ! /ump1 ) ! re/ ( 
! bir* b>k 9 ! o!r h&4  ,rollo !n sp5t  
"s "t 9 fruitless attempts to make "s   
light$ bir* b>k g d[n into ! /ump1 &    
burn !re4 ,he succe$$ v well 9 gett+    
pieces completely on fire2 b1 aft] !y 7 
dropp$ into ! hole1 !y w\ld n burn4     
,rollo c\ld n ?9k :at ! reason c\ld be4 
,at la/ he call$ ,jonas to come & help  
him set ! /ump on fire4  ,jonas said t  
he did n ?9k t x c\ld be set on fire4   
,illu/ration3 ',jonas1 ,i h f\nd a holl[
 /ump "h1' said ,rollo1 call+ ) a l\d   

voice4--,page #abb4  ,:y n8 said ,rollo4
  ,because1 said ,jonas1 x is s wet4    
,yes1 b1 ,jonas1 repli$ ,rollo1 y\r bru%
 heaps burn1 & :y %\ld n ?is /ump8      
,because1 said ,jonas1 ! /ump is m      
solid1 & ! wat] soaks into x m 9 ! w9t] 
& e>ly 9 ! spr+2 & x takes x mu* long]  
to dry1 ?an x does bru% & small roots1  
:i* lie op5 & expos$ to ! air4  ,well1  
!n1 repli$ ,rollo1 :y does n my bir* b>k
 burn8 t is dry2 b z soon z ,i drop x   
d[n into ! /ump1 x goes out4  ,jonas    
look$ into ! /ump1 & d[n ar\nd ! bottom 
( x1 & said1--  ,because !re is no air4 
,no air8 repeat$ ,rollo4  ,no1 repli$   
,jonas2 x is all close & solid ar\nd2 ! 
air _c get 94  ,x c get 9 at ! top1 said
 ,rollo4  ,jonas made no reply to ?is   
rem>k1 b walk$ away a few /eps1 to a    
place :]e he _h put d[n 8 axe2 he took  
up ! axe1 & br\ght x to ! /ump4 ,he     
imm$iately began to cut into x1 at !    
bottom1 z if x 7 a tree :i* he 0 go+ to 
fell4  ,o ,jonas1 said ,rollo1 don't cut
 x d[n4  ,i am n go+ to cut x d[n1 said 

,jonas2 ,i am only go+ to cut a hole    
into x4  ,:at =8 ask$ ,rollo4  ,to let !
 air 91 repli$ ,jonas4  ,jonas cont9u$  
to cut into ! side ( ! /ump1 ne> !      
gr\nd1 until he p]ceiv$ t ! edge ( 8 axe
 w5t ?r\gh into ! holl[ "p4 ,!n he cle>$
 away ! *ips a little1 & %[$ ,rollo t   
!re 0 an op5+ = ! air4  ,n[1 said he1 ,i
 presume y w be able to make /icks &    
bir* b>k burn 9 ! /ump1 ?\gh y c't make 
! /ump itself burn v well4  ,rollo n[   
dropp$ a blaz+ piece ( bir* b>k into !  
/ump1 &1 to 8 great joy1 he f\nd t x    
cont9u$ blaz+1 aft] x rea*$ ! bottom4   
,he !n dropp$ 9 ano!r piece ^u x1 :i*   
took fire4 ,he !n ga!r$ "s dry /icks1 & 
put 92 &1 f9d+ t ! flame 0 increas+1 he 
proce$$ to ga!r all ! dry & combu/ible  
matt]1 :i* he c\ld f9d ar\nd1 & put !m  
91 s t 9 a %ort "t he _h a f9e blaze1 a 
foot above ! top ( ! /ump2 & ! inside ( 
! /ump itself seem$ to be 9 flames4     
,jonas1 said ,rollo1 x does burn4  ,does
 x8 said ,jonas2 ,i am glad to he> x4   
,b y said ! /ump w\ld n burn4  ,y ought 

to wait until x is all burnt up1 be=e y 
triumph ov] me4  ,:y1 ,jonas1 said      
,rollo1 ,i didn't mean to triumph ov] y2
 b :y w\ld n ! fire burn be=e y cut !   
hole ?r\gh8  ,because1 repli$ ,jonas1   
!re 0 n air en\gh4  ,!re 0 air 9 ! /ump1
 said ,rollo4  ,yes1 repli$ ,jonas1 b   
all ! life ( x 0 consum$ by ! fir/ piece
 ( bir* b>k :i* y put 94  ,! life ( x8  
said ,rollo4  ,yes1 repli$ ,jonas2 :at d
 y suppose x is1 t makes any?+ burn8    
,:y1 x burns itself1 said ,rollo4  ,no1 
answ]$ ,jonas2 ! air makes x burn3 x mu/
 h good air ar\nd x1 or else x won't    
burn4 ,!re is some?+ 9 ! air :i* ,i call
 ! life ( x2 ?is makes ! fire burn4 ,b  
:5 ?is is all gone1 !n t air w n make   
fire burn any long]4 ,x w only burn 9   
good fre% air1 :i* has got ! life 9 x4  
,i ?\ght fire w\ld burn 9 any k9d ( air1
 said ,rollo4  ,no1 repli$ ,jonas2 y c  
see if y /op up ! hole ,i made "h4      
,jonas !n took a piece ( turf f ! field1
 & put x be=e ! hole1 & cr[d$ x 9 h>d ) 
! heel ( 8 boot4 ,rollo obs]v$ t ! fire 

0 almo/ imm$iately dead5$4  ,n[1 cont9u$
 ,jonas1 light a small piece ( bir* b>k1
 & put x 94  ,jonas help$ ,rollo fa/5 a 
small piece ( b>k ^u ! end ( a /ick1 &  
!n ,rollo set x on fire1 & held x d[n a 
little way into ! /ump4 ,x burn$ v      
feebly4  ,see1 said ,jonas1 h[ quick x  
is /ifl$4  ,yes1 repli$ ,rollo1 x goes  
out almo/ directly4  ,y see1 said       
,jonas1 t ! fire already 9 ! /ump       
consumes all ! goodness ( ! air2 & ,i   
/opp$ up ! hole1 s t no fre% air c come 
94  ,:y doesn't x g 9 at ! top8 said    
,rollo4  ,x does a little1 said ,jonas1 
b n mu*1 because ! holl[ ( ! /ump is    
already full ( bad air1 & !re is no?+ to
 make a curr5t4 ,:5 !re is an op5+ bel[1
 !n !re is a curr5t up ?r\gh4  ,yes1    
said ,rollo1 x is j l a *imney4  ,yes1  
repli$ ,jonas1 ! /ump is ! *imney1 & !  
hole is ! fireplace4  ,& ! air 9 ! /ump1
 said ,rollo1 gets hot1 & s ! cold air  
all ar\nd is heavi]1 & s x cr[ds d[n "u 
x1 & buoys ! hot air up out ( ! /ump4   
,my fa!r expla9$ x all to ,na?an & me4  

,rollo !n want$ to op5 ! hole aga91 to  
see if ! effect w\ld be z he _h         
describ$4  ,!n ,jonas pull$ away ! turf 
f ! hole at ! bottom ( ! /ump1 & ,rollo 
obs]v$ t ! fire bright5$ up imm$iately4 
,he !n held a smok+ br& ne> ! hole1 & he
 saw t ! smoke 0 c>ri$ 91 9 a v /rong   
curr5t1 by ! cool air1 :i* 0 press+ into
 ! hole4  ,yes1 said ,rollo1 x op]ates j
 l a fireplace4  ,s y see1 cont9u$      
,jonas1 t :5ev] y build a fire1 y mu/   
see to x1 t !re is an op5+ = air to come
 up f und]nea? x4 ,& x mu/ be good fre% 
air too4  ,:at is x 9 ! air1 :i* makes !
 fire burn8 said ,rollo4  ,i don't "k   
:at ! "n ( x is1 said ,jonas2 x is "s "p
 ( ! air1 :i* goes into ! fire1 & is all
 consum$1 & !n ! re/ ( ! air is good =  
no?+4  ,isn't x good = any?+ at all8    
ask$ ,rollo4  ,i don't "k1 said ,jonas1 
h[ t is2 only ,i "k t x isn't good =    
any?+ = fires4 ,x /ifles !m4  ,i %\ld l 
to "k :at ! "n ( t "p ( ! air is1 :i* is
 good = fires1 said ,rollo4  ,i knew    
once1 said ,jonas1 b x 0 a h>d ^w1 & ,i 

h =gott5 x4  ,i mean to ask my fa!r1    
said ,rollo4  ,jonas !n w5t on ) 8 "w1  
ga!r+ up ev]y?+ t he c\ld f9d ar\nd !   
field1 to put ^u ! fires4 ,rollo amus$  
himself by putt+ l>ge rolls ( bir* b>k  
ar\nd ! end ( a /ick1 & !n1 aft] sett+  
!m on fire1 hold+ !m ov] ! fires1 :i*   
,jonas 0 mak+1 to see h[ soon ! flame 0 
ext+ui%$3 !n he w\ld draw !m away1 & see
 !m revive & blaze up aga9 9 ! op5 air4 
,at la/1 he call$ out to ,jonas1 once m4
  ,jonas1 said he1 ,i h f\nd out :at    
makes ! blaze g out4 ,x is ! smoke4 ,i  
don't believe b t x is ! smoke4  ,no1   
repli$ ,jonas1 x is n ! smoke4 ,i c     
prove t x is n4  ,s ,jonas came up to ! 
fire :]e ,rollo 0 /&+1 & po9t$ out to   
,rollo a place1 ov] a hot "p ( x1 :]e   
!re 0 no smoke1 because ! fire "u x     
burn$ cle>1 be+ ne>ly r$uc$ to coals4   
,he told ,rollo to hold 8 blaz+ b>k !re4
 ,rollo did s1 & f\nd t x 0 ext+ui%$ at 
once1 & z completely1 z x _h be5 be=e1  
:5 he _h held x 9 a d5se smoke4  ,yes1  
said ,rollo1 x isn't ! smoke4 ,b p]haps 

x is because x is s hot4  ,no1 said     
,jonas1 x isn't t4 ,x is a diff]5ce 9 ! 
air4 ,!y sometimes collect diff]5t k9ds 
( air 9 glass j>s1 & !n let a c&le d[n  
91 & see :e!r x w g out4  ,& w x g out8 
said ,rollo4  ,t dep5ds ^u :at k9d ( air
 x is1 said ,jonas4 ,!y all look cle>1 j
 z if !re 0 no?+ 9 ! j>s2 b :5 y let a  
c&le d[n 91 9 "s x burns j ! same z     
be=e2 9 "s x burns bright]2 & 9 "s x    
goes out4  ,9 :at k9ds does x g out8    
ask$ ,rollo4  ,i only "k ( "o k9d1 said 
,jonas1 & t is a k9d t comes ( itself 9 
m9es1 & wells1 & o!r places4  ,:at is ! 
"n ( x8 ask$ ,rollo4  ,:y1 ! p 9 ! m9es 
call x *oke damp2 b ,i believe x has got
 ano!r "n besides4  ,:at d !y call x    
*oke damp =8 said ,rollo4  ,because1    
said ,jonas1 if ! m9]s get into x &     
brea! x1 x kills !m4 ,x is n any bett]  
to brea! ?an x is to make fires burn4   
,i wi% ,i c\ld see "s *oke damp1 said   
,rollo4  ,o1 y c't see x at all1 said   
,jonas1 if x 0 "r be=e y1 any m ?an y c 
see common air4 ,if a well or a m9e is  

full ( x1 !y _c f9d x out by look+ d[n4 
,h[ d !y f9d x out8 said ,rollo4  ,:y1  
!y let a c&le d[n1 repli$ ,jonas4  ,& w 
! c&le g out8 ask$ ,rollo4  ,yes1 said  
,jonas1 if !re is *oke damp 9 ! well4   
,sometimes !y make a little ( x 9 a     
tumbl] or a j> ^u ! table1 & s let a    
little flame d[n into x1 & x goes out   
imm$iately4  ,i wi% we c\ld make "s1    
said ,rollo4 ,d y "k h[ !y make x8  ,no1
 said ,jonas2 b ,i believe x is pretty  
easy to d x1 if we only knew h[4  ,i w  
ask my fa!r1 said ,rollo2 p]haps he w   
"k4  ,?is conv]sation took place :5     
,jonas & ,rollo 7 ab\t ! fires2 b n[ !  
fires _h pretty ne>ly burnt out1 & !y   
prep>$ to g home4  ,t ev5+1 j ab\t      
sunset1 ,rollo w5t out beh9d ! h\se1 &  
f\nd ,jonas rak+ (f ! y>d4 ,! spr+ 0 fa/
 com+ on1 & ! grass 0 beg9n+ to look a  
little gre52 & ,jonas said he want$ to  
get (f all ! /icks1 *ips1 & /raws1 s t !
 y>d w\ld pres5t a surface ( smoo? &    
uni=m gre54 ,rollo told him t he _h f\nd
 out h[ to make *oke damp4  ,did y\r    

fa!r tell y8 said ,jonas4  ,no1 repli$  
,rollo4  ,:o did tell y1 !n8 said       
,jonas4  ,guess1 answ]$ ,rollo4  ,y\r   
"m1 said ,jonas4  ,no1 answ]$ ,rollo4   
,!n ,i c't tell1 said ,jonas4  ,x 0     
,miss ,m>y1 repli$ ,rollo4 ,i met h] 9 !
 road to-day1 & ,i ask$ h]4  ,& h[ is x8
 ask$ ,jonas4  ,:y1 we make x ) *alk &  
v9eg>1 said ,rollo4 ,we p\nd up a little
 *alk1 & put x 9 ! bottom ( a tumbl]4   
,!n we p\r "s v9eg> ov] x4 ,! v9eg>     
takes ! *oke damp out ( ! *alk1 & ,miss 
,m>y says x w come up 9 little bubbles4 
,%e says we c lay a pap] ov] ! top      
loosely1--%e said loosely1 b ,i ?9k x   
ought to be tight4  ,:y8 ask$ ,jonas4   
,s z to keep ! *oke damp f com+ out1    
repli$ ,rollo4  ,no1 said ,jonas4 ,i    
und]/& :y %e said y mu/ put x on        
loosely2 t's to let ! common air out4   
,:at common air8 said ,rollo4  ,:y1 !   
air t 0 9 ! tumbl] be=e1 repli$ ,jonas4 
,y see t1 z fa/ z ! *oke damp comes up1 
x drives ! common air out ( ! top ( !   
tumbl]2 & s y mu/ put ! pap] on loosely1

 & let x g out4  ,t ev5+ ,jonas & ,rollo
 tri$ ! exp]im5t4 ,fir/ !y put ab\t two 
teaspoonfuls ( *alk into ! tumbl]4 ,!n  
!y p\r$ 9 ! v9eg>4 ,x imm$iately began  
to foam4  ,ah1 said ,rollo1 t's !       
eff]vesc5ce4  ,! :at8 said ,doro?y2 = !y
 7 mak+ ?is exp]im5t ^u ! kit*5 table1 &
 ,doro?y 0 /&+ by1 look+ on ) great     
int]e/4  ,! eff]vesc5ce1 said ,rollo4   
,miss ,m>y said !re w\ld be an          
eff]vesc5ce1 :i* w\ld be occasion$ by ! 
little bubbles ( *oke damp1 com+ up f ! 
*alk4  ,poh6 said ,doro?y2 x's no?+ b a 
little fro?+4  ,x isn't fro?+1 said     
,rollo1 v s]i\sly2 x isn't fro?+1 x is  
eff]vesc5ce4 ,don't y ?9k ,miss ,m>y    
kn[s8  ,jonas1 said ,rollo aga9 aft] a  
%ort pause1 h[ _m ( ^! little bubbles w 
x take1 d y ?9k1 to fill ! tumbl] full (
 *oke damp8  ,i don't "k1 repli$ ,jonas2
 we w wait a little :ile1 & !n try x4   
,!re1 n[1 ,jonas1 said ,rollo1 we h n   
got any c&le4  ,o1 ,i w roll up a piece 
( pap]1 & set ! end on fire1 & !n dip x 
d[n into ! tumbl]1 & t w d j z well4    

,:at are y go+ to d t =8 said ,doro?y4  
,:y1 to see x g out1 said ,rollo4  ,x   
won't g out1 unless y put x away d[n    
into ! v9eg>1 said ,doro?y4  ,yes x w1  
said ,rollo2 we are only go+ to dip x   
d[n a little way1 j into ! *oke damp1 & 
x w g out4  ,x won't g out1 *ild1 said  
,doro?y4 ,!re's no?+ to put x out4      
,well1 y'll see4 ,won't x g out1 ,jonas8
  ,i don't "k1 said ,jonas4  ,don't "k8 
said ,rollo4 ,:y1 y told me t *oke damp 
w\ld put out a blaze4  ,yes1 said       
,jonas1 ,i am sure ( t2 b !re are a     
great _m ways ( fail+ 9 try+ exp]im5ts4 
,well1 said ,rollo1 t may be2 b ?is w n 
fail1 ,i "k1 = ,i c see ! little bubbles
 ( *oke damp com+ up4 ,!re are millions 
( !m4  ,by ?is "t ,jonas ?\ght t !      
tumbl] 0 fill$ ) ! gas1 :i* 0 ris+ f !  
*alk & v9eg>4 ,s he roll$ up a piece (  
pap]1 & set ! end on fire1 &1 :5 x 0    
well burn+1 he plung$ ! end ( x into !  
tumbl]4 ,to ,rollo's great disappo9tm5t 
& mortification1 x cont9u$ to burn ab\t 
z mu* z ev]4 ,! flame crept rapidly up !

 pap]1 & ,jonas _h soon to run ) x      
across ! floor & ?r[ x into ! fire1 to  
avoid burn+ 8 f+]s4 ,doro?y laugh$ al\d2
 ,jonas smil$2 & z = ,rollo1 he look$   
disappo9t$ & vex$1 & appe>$ to be       
ov]:elm$ ) *agr94  ,doro?y cont9u$ to   
laugh at !m1 :ile ,jonas w5t to ! pump &
 wa%$ out ! tumbl]4 ,at l5g? %e said1-- 
,b come1 ,rollo1 don't be s             
disconsolate4 ,y look z if y _h swall[$ 
all ! *oke damp4  ,yes1 ,rollo1 said    
,jonas1 we mu/ keep good-natur$1 ev5 if 
our exp]im5ts d fail4  ,well1 said      
,rollo1 ,i mean to ask ,miss ,m>y aga91 
& !n we c d x1 ,i "k4         99        
99       99       99       99  ,rollo   
accord+ly w5t1 ! next day1 to ask ,miss 
,m>y ab\t ! cause ( ! failure4 ,miss    
,m>y said t %e c\ld n ?9k ( any ?+ :i* 0
 likely to be ! cause1 unless x 0 t !y  
put too l>ge a flame into ! tumbl]4     
,well1 repli$ ,rollo1 & :at h>m w\ld t  
d8 ,won't ! *oke damp put out a l>ge    
flame8  ,yes1 repli$ ,miss ,m>y1 if x   
only fairly surr\nds & cov]s x2 b1 !n1  

if y put a l>ge flame into a tumbl]1 x  
makes ! fir/ in/ant1 a great curr5t (   
air1 & s ! *oke damp might be bl[n out1 
& common air get 91 & s keep ! pap]     
burn+4  ,h[ does x make a curr5t ( air8 
ask$ ,rollo4  ,:y1 ! heat ( ! flame1 :5 
y fir/ put ! pap] 91 repli$ ,miss ,m>y1 
makes ! air t is above x light]2 & !    
common air all ar\nd cr[ds 9 "u x1 9    
buoy+ x up2 & by t means1 if ! flame is 
too l>ge1 common air is c>ri$ into !    
tumbl]4 ,y ought to make a v small      
flame1 if y leave ! top ( ! tumbl] op54 
,h[ c we make a small flame8 said       
,rollo4  ,"o good way1 repli$ ,miss     
,m>y1 is to roll up "s pap] into a v    
small roll4 ,i w %[ y h[4  ,s ,miss ,m>y
 took a piece ( pap]1 & cut x into !    
prop] %ape ) h] scissors1 & !n roll$ x  
up into a long & v sl5d] roll2 "o end ( 
x 0 n mu* l>g] ?an a l>ge knitt+-ne$le4 
,%e gave ?is to ,rollo1 & told him t1 if
 he tri$ ! exp]im5t aga91 he mu/ light !
 small end1 & x w\ld make a flame n s   
big z a pea4  ,rollo expla9$ to ,jonas  

:at ,miss ,m>y _h said1 & !y resolv$ on 
attempt+ ! exp]im5t aga9 t ev5+4 ,& !y  
did s4 ,doro?y /ood by wat*+ ! process1 
z %e _h done ! ev5+ be=e1 b ,rollo did n
 ass]t s confid5tly & positively :at !  
result w\ld be4 ,he _h le>n$ mod]ation  
by ! exp]i5ce ( ! night be=e4  ,:5 all 0
 ready1 ,jonas light$ ! end ( ! sl5d]   
roll 9 ! lamp1 & plung$ x c>efully into 
! tumbl]4 ,x w5t out imm$iately4  ,!re6 
said ,rollo1 clapp+ 8 h&s1 x goes out4  
,:y1 x is only because ! w9d blew x out4
  ,no1 ,doro?y1 said ,rollo1 !re isn't  
any w9d 9 ! tumbl]4  ,yes1 repli$       
,doro?y1 :5 y pu% x d[n1 x makes a      
little w9d1 j en\gh to bl[ x out4  ,get 
ano!r tumbl]1 said ,jonas1 & let u see4 
,s ,doro?y br\ght ano!r tumbl]1 & ,jonas
 put ! burn+ end ( ! pap] d[n into x1 ) 
ab\t z rapid a motion z t ) :i* he _h   
put x be=e into ! tumbl] he _h at fir/4 
,! pap] cont9u$ to burn4  ,!re1 said he 
to ,doro?y1 :5 ,i put x d[n into common 
air1 x burns on ! same z ev]2 s x c't be
 t ! w9d puts x out4 ,jonas repeat$ !   

exp]im5t a numb] ( times2 ! effect 0    
always ! same4 ,:5ev] he put x into !   
tumbl] ( common air1 x burn$ on )\t any 
*ange2 b :5ev] he put x into ! *oke     
damp1 x imm$iately w5t out4 ,ev5 ,doro?y
 0 satisfi$ t !re 0 a diff]5ce 9 ! k9d (
 air conta9$ 9 ! two tumbl]s4  ,t ev5+1 
:5 ,rollo gave 8 "m a full acc\nt ( _!  
attempts1--describ+ p>ticul>ly _!       
failure at fir/1 & _! subsequ5t         
successes1--8 "m seem$ mu* int]e/$4 ,:5 
he _h f9i%$1 %e said1--  ,well1 ,rollo1 
,i don't see b t y h le>n$ two lessons 9
 philosophy4  ,two lessons8 said ,rollo4
  ,yes1 repli$ 8 "m4 ,! fir/ is1 t fire 
w n burn 9 *oke damp2 & ! second is1 t x
 requires nice att5tion & c>e to v]ify  
philosophical tru?s by exp]im5t4  ,yes1 
said ,rollo1 we miss$ ! fir/ "t1 j      
because we _h too big a pap]4           
,,que/ions4      ,:y did ,jonas suppose 
t ! /ump w\ld n burn8 ,:at 0            
,rollo's fir/ mode ( sett+ x on fire8   
,h[ did x succe$8     ,:at did ,jonas d 
) 8 axe1 :5 he came8 ,:at 0 !     object

 ( ?is8 ,:at did he say 0 necess>y to   
make fires     burn8 ,:at did ,rollo at 
fir/ ?9k 0 ! reason :y ! b>k     w5t out
 :5 held ov] ! fire8 ,:at did he next   
?9k 0 !     reason8 ,h[ did ,jonas say t
 diff]5t k9ds ( airs 7     prep>$8 ,9   
:at places did he say t *oke damp 0     
naturally produc$8 ,h[ did !y attempt to
 prep>e "s ( ?is     gas8 ,did !y succe$
 9 prep>+ x8 ,did !y succe$ 9 _!        
exp]im5t at fir/8 ,:at 0 ! cause ( !    
failure8     ,,*apt] ,x4  ,,gravitation4
   ,"o ev5+1 aft] tea1 :5 ,rollo 0 a    
pretty big boy1 he came & began to climb
 up into 8 fa!r's lap4 ,:5 he _h climb$ 
up1 he took 8 place a/ride ( 8 fa!r's   
knee1 z if he 7 rid+ a horse4 ,8 little 
bro!r ,na?an came up & /ood ne>1 want+  
to get up too1 only !re 0 n room4 ,8    
c\s9 ,james 0 !re1 t ev5+1 on a visit4  
,he sat ^u a cricket be=e ! fire1 & 8 "m
 0 at ! table do+ "s sort ( "w4  ,o de> 
me6 said ,rollo's fa!r1 imitat+ ! tone 9
 :i* ,rollo sometimes utt]$ t           
exclamation4  ,:at1 sir8 said ,rollo4   

,:y1 ,i %\ld l v well to hold y 9 my    
lap1 said 8 fa!r1 if x 0 n = ! great    
mighty e>?1 d[n bel[ u4  ,h[8 said      
,rollo4 ,he did n "k :at 8 fa!r meant4  
,:y1 :5 y are ^u my knee1 ! e>?1 !      
pond]\s e>?1 pulls y d[n h>d & heavy ^u 
x4 ,s say+1 he put 8 h&s ^u ,rollo's    
%\ld]s1 & cr[d$ !m d[n1 by way ( %[+ him
 h[ ! e>? act$ ^u him4 ,x pulls1 he     
cont9u$1 ) a /rong & /eady pull1 all !  
"t2 & s makes y a v heavy weight4  ,is t
 :at makes weight8 said ,rollo4  ,yes1  
said 8 fa!r4 ,s1 if ,i _h a mon/r\s /one
 to move1 & if ,i ?\ght ! e>? w\ld li/5 
to me1 & let g its hold1 ,i might make a
 spee* to x ?us3--  ',o e>?1 ?\ va/ &   
pond]\s ball1 please to relax ?y hold1 =
 a few m9utes1 ^u ?is /one1 & leave x   
free to move2 & !n ,rollo c tie a /r+ to
 x1 & move x easily along to ! place :]e
 ,i want x to lie2 !n ?\ may/ seize x   
aga9 ) ?y mighty attraction1 & hold x   
d[n z firmly z ?\ wilt4'  ,o fa!r6      
exclaim$ ,rollo2 ,na?an & ,james laugh$1
 & ,rollo's "m look$ up f h] "w to li/5 

to ?is /range apo/rophe4  ,x w\ld seem1 
cont9u$ 8 fa!r1 9 a pomp\s tone1 z if   
/ill address+ ! e>?--x w\ld seem1 mo/   
mighty planet1 a v easy ?+ = !e to      
release ?is s+le /one1 = a few m9utes1 f
 ! grasp ) :i* ?\ holde/ all ?+s d[n ^u 
?y surface4 ,& by x ,i %all ga9 mu*1    
:ile ?\ wilt lose no?+2 =1 if ?\ wilt n 
will+ly give up ! /one1 ,i mu/ get ?ree 
or f\r yoke ( /rong ox51 &1 by ma9 =ce1 
pull x away4  ,is t :at makes ev]y?+    
heavy8 said ,rollo4  ,yes1 said 8 fa!r1 
answ]+ n[ 9 8 natural tone2 ! attraction
 ( ! e>? is :at makes ev]y?+ heavy1 &   
holds x d[n4  ,& c\ld we move a mon/r\s 
great /one1 said ,rollo1 z light z a    
fea!r8  ,no1 said 8 fa!r1 x w\ld n move 
along quick & light1 l a fea!r4 ,y c\ld 
n move x quick4 ,suppose1 = in/ance1 y  
_h two boats1 float+ ^u ! wat]1 ( ! same
 size2 "o made v light inde$1 ( some?+ v
 ?91 l pap]1 & empty2 & ! o!r made (    
wood1 & load$ ) iron z heavily z x w\ld 
be>4 ,n[1 !y w\ld bo? be support$ ^u !  
wat]1 s t _! weight w\ld be neutraliz$2 

& yet !y w\ld move v diff]5tly4 ,y c\ld 
pu% ! light "o ab\t easily1 any:]e1 b ! 
heavy "o w\ld move v sl[ly4 ,y w\ld n h 
to pu% v h>d ^u x1 b y w\ld h to pu% =  
"s "t1 to set x 9 motion2 & !n x w\ld be
 h>d to /op x4 ,?is is call$ its in]tia4
  ,yes1 said ,rollo1 x w\ld g h>d] aga9/
 ! bank4  ,! reason is1 cont9u$ 8 fa!r1 
t ! heavy boat conta9s a great _m m     
p>ticles ( matt] ?an ! light "o1 & !y h 
all got to be put 9 motion4 ,s x        
requires great] ef=t1 or ! same ef=t mu/
 be cont9u$ a long] "t4  ,= in/ance1 if 
we suppose t ! light boat has "o million
 ( p>ticles ( matt]1 ! heavy "o w\ld h1 
p]haps1 tw5ty millions4 ,( c\rse !      
effect ( ! pu%+ has to be divid$ among  
tw5ty times z _m p>ticles1 & ( c\rse w  
only c>ry !m "o tw5tie? "p z f>2 s t !  
bodies t are n[ l>ge & heavy1 w\ld only 
move sl[ly1 ?\gh !y w\ld move easily1 if
 ! attraction ( ! e>? 7 to cease4  ,!re 
is ano!r way to illu/rate x1 he cont9u$4
 ,suppose !re 0 a l>ge mass ( lead1 z   
big z a load ( hay1 hang+ by a *a92 &   

also a great puff ( fea!rs1 or a balloon
 ( ! same size1 hang+ 9 ! same way4 ,n[1
 if !y 7 bo? susp5d$ freely1 !y w\ld bo?
 move easily1 = _! weight w\ld be       
support$ by ! *a92 b ! heavy "o w\ld    
move v sl[ly4 ,na?an c\ld move x1 b he  
c\ld only move x sl[ly & a little way4  
,i %\ld n ?9k t he c\ld move x b v      
little1 said ,rollo4  ,no1 he c\ld n2   
because y see t1 9 t way ( susp5d+      
any?+1 ! mom5t t x beg9s to move1 x     
beg9s to sw+ (f & to rise2 s t x _c be  
mov$ at all )\t be+ lift$ a little4 ,& !
 m x is mov$1 ! high] x is lift$1 s t x 
w\ld take a great =ce to move x f> away 
f ! c5tre1 :]e x 0 hang+4 ,b we c hang x
 9 a way to avoid t difficulty4  ,h[1   
sir8 said ,rollo4  ,rollo seem$ to be v 
mu* int]e/$ 9 ?is conv]sation4 ,he _h   
dism\nt$ f 8 fa!r's knee1 & /ood by 8   
side1 li/5+ eag]ly4 ,8 "m1 too1 0 pay+  
close att5tion4 ,z = ,na?an1 he sat     
/ill2 ?\gh x is n by any means c]ta9 t  
he und]/ood x v well4  ,let u suppose1  
said 8 fa!r1 t ! mass ( lead1 z big z a 

load ( hay1 is fa/5$ to "o end ( a /ick 
( timb]4  ,t w\ld n be /rong en\gh to   
hold x1 said ,rollo4  ,well1 !n1 to a   
beam ( iron1 z l>ge z a /ick ( timb]1   
rejo9$ 8 fa!r4  ,o1 said ,james1 y c\ld 
n get su* a big b> ( iron4  ,no1 repli$ 
8 fa!r1 only an imag9>y "o2 & t w be j z
 good z any4 ,n[1 suppose ! great mass (
 lead is fa/5$ to "o end ( ?is b>1 &    
ano!r "o1 j l x1 to ! o!r end1 to       
balance x4 ,n[1 suppose t ! l[] end ( ! 
great *a9 is secur$ ar\nd ! middle ( !  
iron beam1 & ! upp] end to be fa/5$ to  
"s /rong support up 9 ! air4 ,n[1 we c  
move ! mass ( lead )\t hav+ to lift x at
 all2 =1 if we pu% aga9/ x1 & make x    
move1 x w move r\nd & r\nd1 )\t ris+ at 
all1 z x did be=e1 :5 x 0 hung up       
directly by ! *a94  ,rollo's fa!r !n w5t
 on to expla9 to !m t1 9 su* a case z   
?is1 ! weight ( ! two masses ( lead w\ld
 n prev5t _! mov+ easily1 = !y w\ld     
exactly balance ea* o!r4 ,a little *ild 
w\ld be able to move !m2 b /ill !y w\ld 
move exce$+ly sl[ at fir/1 & x w\ld be  

h>d to /op !m1 :5 !y 7 9 motion4 ,s1 he 
said1 if ! e>? %\ld cease to attract &  
draw d[n any great1 heavy body1 l a l>ge
 /one1 = example1 ! smalle/ *ild c\ld   
lift x1 ?\gh x w\ld come up sl[ly1 j z a
 v heavy body w\ld move1 if x 0 susp5d$ 
by a /r+1 or 0 afloat ^u ! wat]4  ,& s1 
said ,rollo1 if ! e>? %\ld n attract u1 
c\ld we pu% ourselves "r up (f f !      
gr\nd8  ,yes1 said 8 fa!r1 mo/          
und\bt$ly4  ,:at1 & g ab\t any:]e 9 !   
air8  ,c]ta9ly4  ,rollo began to laugh  
al\d at ?is idea1 & look$ v mu* int]e/$ 
& pleas$4  ,o1 !n ,i wi% !re 0 no       
gravitation1 said ,rollo2 ,i d1 really4 
,b1 !n1 cont9u$ 8 fa!r1 if y %\ld get up
 into ! air1 y c\ld n get d[n aga94  ,:y
 n8 said ,na?an1 beg9n+ to look a little
 conc]n$4  ,unless1 said 8 fa!r1 y _h   
some?+ above y1 to pu% aga9/1 s z to pu%
 y\rselves d[n4 ,y w\ld be j l a boy 9 a
 boat1 (f f ! %ore1 & )\t any paddle or 
pole4 ,he c\ld n get back aga94  ,we    
might tie a rope to some?+1 said ,james1
 be=e we w5t up1 & s pull ourselves d[n4

  ,yes1 t y might d4  ,& c\ld n we flap 
our h&s1 l a bird1 & s fly a little8    
,p]haps y c\ld1 said 8 fa!r4  ,"h !     
*ildr5 all began to flap _! h&s1 l "y   
birds try+ to fly2 & ,rollo said aga91  
he wi%$1 ) all 8 he>t1 !re 0 no         
gravitation2 = !n1 said he1 we %\ld h   
/r5g? en\gh to fly4  ,t w\ld lead to    
s]i\s consequ5ces1 said 8 fa!r4  ,:at   
consequ5ces8 said ,james4  ,mu* m s]i\s 
?an y w\ld suppose4  ,tell u :at !y w\ld
 be1 uncle1 said ,james4  ,o1 ,i "k1    
said ,rollo2 y c\ld n /& up /raight )\t 
gravitation4  ,o1 we c\ld1 c\ldn't we1  
fa!r8 said ,na?an4  ,:at makes y ?9k1   
,rollo1 said 8 fa!r1 )\t reply+ to      
,james's "q--:at makes y ?9k t we c\ld n
 /& up /raight )\t gravitation8  ,:y1 y 
see1 said ,rollo4--,"h he paus$1 & look$
 confus$1 & did n "k :at to say4 ,he _h 
an indi/9ct recollection ( hav+ read    
some?+ ab\t x 9 "s book2 b he c\ld n    
tell :at4  ,i don't see :at %\ld prev5t 
any body's /&+ up /raight1 if !         
attraction ( ! e>? %\ld cease2 9 fact1  

if x made any diff]5ce1 x w\ld be r     
easi] to /& up /raight4  ,"h ,rollo     
look$ r fooli%1 b he did n reply4 ,!    
tru? is1 l almo/ all o!r *ildr51 :o take
 an int]e/ 9 read+1 he 0 sometimes a    
little va9 ( 8 k2 & 9 ?is case1 in/ead (
 li/5+ att5tively1 & endeavor+ to le>n  
some?+ new f 8 fa!r's explanations1 he  
seems to h ?\ght x a good plan = him to 
help him elucidate ! subject to ,james &
 ,na?an4 ,he ex*ang$ ! "* ( le>n] =     
tea*] too soon4  ,well1 uncle1 said     
,james1 :at w\ld be ! consequ5ce if     
gravitation %\ld cease8  ,:y1 9 ! fir/  
place1 said ,rollo's fa!r1 all ! /reams 
9 ! _w w\ld /op runn+4  ,! /reams6 said 
,rollo1 a/oni%$4  ,yes1 said 8 fa!r1 e  
riv]1 brook1 & rill4 ,! reason :y !     
/reams fl[ is1 t ! e>? attracts ! wat] f
 ! m\nta9s & hills1 d[n into ! valleys &
 t[>ds ! sea4  ,well1 sir1 :at else8    
said ,rollo4  ,:y1 !re w\ld nev] be any 
m ra94  ,no m ra96 exclaim$ all !       
*ildr54  ,no1 he repli$4 ,! drops ( ra9 
fall only because ! e>? draws !m d[n by 

its attraction2 &1 ( c\rse1 if ?is      
attraction %\ld cease1 !y w\ld rema9 :]e
 !y are4  ,! *ildr5 7 mus+ a m9ute ^u ^!
 /range effects1 :5 ,rollo ask$ if any?+
 else w\ld happ54  ,:y1 yes1 said 8     
fa!r1 worse disa/]s ?an ^!2 b ,i d n "k 
:e!r y w\ld und]/& !m1 if ,i %\ld expla9
 !m4  ,o1 try1 said ,rollo2 ,i ?9k we   
%all und]/&4  ,well1 let me ?9k1 said 8 
fa!r4 ,y h notic$ h[ a *aise :eel1 on a 
muddy road1 9 a wet day1 holds ! mud ^u 
x1 until :5 x is go+ v swiftly d[n a    
hill1 & !n ! mud flies (f 9 all         
directions4  ,yes1 sir1 said all !      
*ildr54  ,& if ! mud did n /ick to !    
:eel pretty tight1 x w\ld be ?r[n (f at 
all times1 ev5 :5 ! :eel 0 go+ sl[4 ,y  
und]/& ?is4  ,yes1 sir4  ,well1 n[1 ?is 
:ole e>?1 y all "k1 is :irl+ ar\nd ?r\gh
 space1 & mov+ on also ar\nd ! sun4 ,&  
all ! loose ?+s ^u ! surface w\ld be    
?r[n (f at once1 if !y 7 n held to x by 
a /rong attraction4 ,if ?is attraction 7
 to cease sudd5ly1--:isk6--away we %\ld 
all g 9 an in/ant--rocks1 h\ses1 m51    

animals1 all 9 confusion4  ,o fa!r6     
exclaim$ ,rollo2 :]e %\ld we g to1--(f  
into ! air8  ,n exactly into ! air1 = ! 
air w\ld all fly (f1 & be dissipat$ too2
 we %\ld fly (f into ! sky some:]e1 "s 9
 "o direction1 & "s 9 ano!r4 ,y'd be a  
?\s& miles (f f ! e>?1 almo/ be=e y w\ld
 "k x4  ,w\ld x kill u1 fa!r8 said      
,na?an4  ,yes1 said 8 fa!r4 ,i don't "k 
t !re w\ld be any %ock t w\ld hurt u1 b 
we %\ld h no air to brea!1 & x w\ld be  
d>k & dismal4  ,d>k8 said ,rollo4 ,!re  
w\ld be ! sun4  ,yes1 said 8 fa!r1 !re  
w\ld be ! sun2 & ! sun w\ld look bright 
en\gh :5 y look$ directly t[>ds x1 b !re
 w\ld be no g5]al light ab\t y1 unless  
!re 0 air4  ,! *ildr5 all paus$ to      
reflect ^u ! /range results :i* _! fa!r 
_h told !m w\ld ensue f a susp5sion ( ! 
e>?'s attractive =ce4 ,rollo began to   
?9k t he _h be5 too ha/y 9 8 wi% t !re 0
 no gravitation4  ,b1 fa!r1 said he1 !  
h\ses w\ld n g (f1 c]ta9ly2--only !     
loose ?+s w\ld g4  ,v well2 h\ses are   
loose4  ,o fa!r6 !y are fa/5$ d[n4  ,h[ 

are !y fa/5$ d[n8 ask$ 8 fa!r4  ,o1 !y  
are nail$--&1  ,n nail$ to ! gr\nd1     
c]ta9ly1 said 8 fa!r4  ,no1 said ,rollo1
 laugh+2 b !n !y are built ) great /ones
 & mort>4  ,yes1 b !re is no mort> "u ! 
l[e/ /ones4 ,! f\ndations are simply    
laid ^u ! gr\nd4  ,well1 rejo9$ ,rollo1 
,i ?\ght !y 7 fa/5$ someh[ or o!r4  ,no1
 said 8 fa!r2 !y dig ! cell>1 & only j  
lay ! f\ndations ^u ! gr\nd1 )\t any    
fa/5+4 ,! e>? holds !m 9 place4  ,well1 
fa!r1 said ,rollo1 t is :at ,i meant1 :5
 ,i said we c\ld n /& up /raight4 ,i    
meant ! h\ses4 ,i read 9 a book t h\ses 
w\ld be bl[n away1 if ! gravitation did 
n hold !m d[n4  ,"h ,rollo's fa!r _h a  
he>ty laugh2 & he told ,rollo t he ?\ght
 t 0 r wide %oot+4 ,rollo want$ to "k   
:at he 0 laugh+ at2 & ,na?an ask$ him   
:at he meant by wide %oot+4  ,:y1 said  
he1 ,rollo1 y und]took to expla9 to u1 f
 y\r /ores ( k1 :at ! effects ( a       
susp5sion ( gravitation w\ld be2 &1 9   
attempt+ to tell t h\ses w\ld be 9 dang]
 ( be+ bl[n away1 y came no ne>] ?an to 

tell u t boys c\ld n /& up /raight2 & t 
is :at ,i call pretty wide %oot+4  ,s   
say+1 he rose f 8 seat1 & walk$ away1   
appe>+ to be v mu* amus$4 ,james laugh$ 
too1 & ev5 ,rollo c\ld n help smil+ at !
 ridicul\s figure :i* 8 display ( 8     
le>n+ made4 ,z = ,na?an1 he cont9u$ to  
look grave2 & said he did n see t x 0   
any %oot+ at all4  ,aft] a %ort pause1  
,rollo's "m said1 ,s y see1 *ildr51 !   
cause ( all ! pressure1 bo? ( air & (   
wat]1 & all ! effects produc$ by !m1 are
 ! results ( _! gravitation t[>ds ! e>?4
  ,yes1 said ,rollo1 ,i believe ,i      
und]/& x n[4  ,aft] ?is1 ,rollo took    
,james & ,na?an out into ! y>d1 to see  
if "s beans _h come up1 :i* he _h be5   
plant+ 9 a sunny corn] ( ! g>d5 ! day   
be=e4       ,,que/ions4      ,:at 0 ,mr4
 ,holiday's apo/rophe to ! e>?8 ,:at is 
!     cause ( weight8 ,:y did ! boys wi%
 t !re 0 no     gravitation8 ,:at 0 !   
fir/ evil consequ5ce :i* _!     fa!r    
said w\ld ensue1 if !re 0 no            
gravitation8 ,:at 0     ! second evil   

consequ5ce8 ,:at did _! "m say aft] !   
conv]sation ) _! fa!r 0 clos$8          
,,*apt] ,,xi4  ,,air ,,9 ,,motion4      
,rollo's dam1 :i* he _h made :5 he 0    
/udy+ ! philosophy ( wat]1 & :i* 0 at   
fir/ und]m9$ by ! pressure ( ! wat]1 0  
aft]w>ds c>ri$ away by its mom5tum4     
,rollo le>n$1 at t "t1 t wat] mov+      
rapidly _h a great mom5tum2 & ab\t ?is  
"t he _h an opportunity ( le>n+ t air1  
:5 9 motion1 _h a mom5tum too1 capable (
 produc+ v p[]ful effects4 ,!           
circum/ances ( ! case 7 z foll[s3--  ,"o
 morn+1 t[>ds ! latt] "p ( ,m>*1 ,jonas1
 be+ out 9 ! b>n1 obs]v$ "s indications 
t ! ro( want$ repairs4 ,x _h be5 /ra9$ &
 weak5$ by ! heavy sn[s 9 ! w9t]4 ,he   
report$ ! fact to ,rollo's fa!r1 :o said
 t he might g1 ! next day1 & get !      
c>p5t] to come & repair x4 ,! c>p5t]    
liv$ t5 miles di/ant1 ne> ! %ore ( a    
long pond4  ,:5 ,rollo he>d ( ?is       
propos$ exp$ition1 he want$ to g too2 & 
8 fa!r gave him p]mission4 ,jonas 0 go+ 
9 ! wagon4 ,he told ,rollo1 ! ev5+ be=e1

 t he meant to set out at six o'clock4  
,b suppose x looks l a /orm1 said       
,rollo4  ,!n !re w be m ne$ ( go+1 said 
,jonas2 = if ! equ9octial /orm comes on 
be=e ! ro( is /r5g!n$1 x may get c>ri$  
away4  ,:at is ! equ9octial /orm8 said  
,rollo4  ,o1 x is a great /orm1 :i*     
comes g5]ally ab\t ?is "t ( ye>4 ,i     
%\ldn't wond] if x %\ld come on         
to-morr[4 ,b x may n come = a week2 & s 
,i hope we %all h "t to get ! ro( m5d$  
fir/4  ,does x look l a /orm to-night8  
said ,rollo4  ,no1 n mu*1 repli$ ,jonas4
 ,x is a little hazy 9 ! s\?-we/4       
,h[ev]1 if x looks l a /orm 9 ! morn+1 y
 ne$ n g1 unless y *oose2 ?\gh ,i %all4 
,i wi% y'd wait till ! /orm is ov]1 said
 ,rollo4  ,no1 said ,jonas1 ,i _h r g 9 
! /orm ?an n4  ,:y8 said ,rollo4        
,because1 said ,jonas1 ,i l to be out 9 
/orms4 ,sometimes x is v gr&4  ,! next  
morn+1 :5 ,rollo awoke1 he f\nd t x 0   
light1 b n yet sunrise4 ,he arose1 &    
look$ out ( ! w9d[ to see if x 0        
pleasant4 ,! sky 0 some:at ov]ca/1 b !re

 0 a little blue to be se51 & ,rollo    
?\ght t x w\ld be pleasant4 ,he he>d a  
noise 9 ! b>n-y>d1 &1 look+ 9 t         
direction1 he saw ,jonas j lead+ ! horse
 out ( ! /able4 ,s he dress$ himself    
soon1 & w5t d[n4  ,:5 he got ready1 he  
w5t d[n into ! y>d1 & f\nd t ,jonas _h  
got ! horse h>ness$1 & ev]y?+ prep>$4   
,!re 0 a little bag ( oats 9 ! back "p (
 ! wagon1 & also a t9 pail1 ) a cov]1   
:i* conta9$ a lun*eon4 ,jonas fa/5$ !   
horse to a po/1 & said1--  ,n[1 ,rollo1 
we'll g 9 & get "s breakfa/4  ,i ?\ght t
 lun*eon 0 = breakfa/1 said ,rollo4     
,no1 said ,jonas1 t is = d9n]4  ,%all we
 be gone all ! day8 said ,rollo4  ,we   
may be gone till aft] d9n]1 said ,jonas1
 & s ,i ?\ght ,i w\ld be sure4  ,! two  
boys w5t into ! h\se1 & !re !y f\nd t   
,doro?y _h got "s breakfa/ ready = !m ^u
 ! kit*5 table4 ,aft] eat+ _! breakfa/1 
!y got into ! wagon1 & set out4 ,jonas  
fir/ put 9 a l>ge umbrella4 ,j z !y 7   
driv+ out ( ! y>d1 ! fir/ beams ( !     
morn+ sun %one 9 "u ! bran*es ( a great 

tree 9 ! y>d1 & bright5$ up ! tips ( !  
horses' e>s & ! boys' faces4 ,at ! same 
"t1 a rude gu/ ( w9d came ar\nd ! corn]s
 ( ! h\se1 & slamm$ to ! gate ( ! front 
y>d4  ,x's go+ to be pleasant1 said     
,rollo2 ! sun is com+ out4  ,i'm n v    
sure ( t1 said ,jonas2 ! w9d is ris+4   
,we />t j at sunrise1 said ,rollo4      
,yes1 repli$ ,jonas1 ! sun always rises 
at six o'clock at ?is "t ( ! ye>4  ,!   
boys rode along = ab\t ?ree h\rs1 be=e  
!y came to ! c>p5t]'s4 ,!y 7 oblig$ to  
travel v sl[1 = ! roads 7 n good4 ,x is 
true t ! sn[ 0 all gone1 & ! fro/ 0     
ne>ly out ( ! gr\nd2 b !re 7 _m deep    
ruts1 & 9 "s places x 0 muddy4 ,! sun   
w5t into a cl\d soon aft] !y set out1 & 
x cont9u$ ov]ca/ all ! morn+4 ,!re 0 "s 
w9d too1 b1 z x 0 beh9d !m1 & z ! road  
lay ?r\gh woods & among %elt]$ hills1 !y
 did n obs]ve x mu*4 ,jonas said t !re 0
 a /orm com+ on1 b he ?\ght x 0 com+    
sl[ly4  ,!y arriv$ at l5g? at ! pond4   
,!re 0 a little village !re1 ^u ! %ore (
 ! pond4 ,! reason :y !re happ5$ to be a

 village !re1 0 ?is3 ,a /ream ( wat]1   
:i* came d[n f among ! m\nta9s1 empti$  
into ! pond "h1 &1 v ne> :]e x empti$1 x
 fell ov] a l$ge ( rocks1 mak+ a        
wat]fall1 :]e ! p _h built "s mills4    
,n[1 :]e !re are mills1 !re mu/ g5]ally 
be a blacksmi?'s %op1 to m5d ! iron "w  
:5 x gets brok51 & to repair tools4 ,!re
 is (t5 a tav]n1 also1 = ! p :o come to 
! mills2 & !n !re is g5]ally a /ore or  
two2 = :]ev] p h to come toge!r1 = any  
bus9ess1 !re is a good place to op5 a   
/ore1 to sell !m :at !y want to buy4    
,?us !re 0 a little village ab\t ^!     
mills1 :i* 0 g5]ally call$ ! ,mill      
village4  ,jonas inquir$ :]e ! c>p5t]   
liv$1 & !n drove directly to 8 h\se4 ,he
 f\nd t he 0 n at home4 ,he _h gone     
across ! pond1 to m5d a bridge1 :i* _h  
be5 9 "p c>ri$ away by ! floods made :5 
! sn[ w5t (f4 ,rollo sat 9 ! wagon 9 !  
y>d by ! side ( ! c>p5t]'s h\se1 :ile   
,jonas /ood at ! door1 mak+ inquiries & 
gett+ ?is in=mation4  ,if y want to see 
him v mu*1 said ! c>p5t]'s wife1 ,i     

presume y c get a boat d[n 9 ! village1 
& g across ! pond4  ,h[ f> is he f ! o!r
 side ( ! pond8  ,o1 close by ! upp]    
l&+1 said %e2 n a qu>t] ( a mile f !    
%ore1 "r up ! road4  ,jonas ?ank$ !     
woman = h] in=mation1 & got into !      
wagon4  ,let u get a boat & g ov]1      
,jonas1 said ,rollo1 z !y 7 turn+ !     
wagon r\nd4  ,i %\ld1 said ,jonas1 if   
!re 0 n su* a ?reat5+ ( a /orm4  ,x does
 n bl[ mu*1 said ,rollo4  ,no1 said     
,jonas1 n mu* n[1 b ! w9d may rise be=e 
we get back4 ,h[ev]1 we'll g & see if we
 c get a boat4  ,aft] "s inquiry1 !y    
f\nd a boat1 at a little di/ance out ( !
 village1 9 a sort ( cove1 :]e !re 0 a  
f9e1 s&y bea*4 ,! boat 0 ( v good size1 
& x _h 9 x two o>s & a paddle4 ,jonas   
look$ out ^u ! wat]1 & up to ! sky1 & he
 li/5$ to he> ! moan+ ( ! w9d ^u ! tops 
( ! trees4 ,he want$ v mu* to p]sev]e 9 
8 ef=t to f9d ! c>p5t]2 b !n1 on ! o!r  
h&1 he 0 n sure t x 0 q safe to take    
,rollo out ^u ! wat] at su* a "t4 ,he   
sat ^u a log ^u ! %ore a few m9utes1 &  

seem$ lo/ 9 ?\ght4  ,illu/ration3 ,& v  
soon !y 7 glid+ smoo?ly along out ( !   
cove4--,page #afg4  ,at la/ he said1--  
,well1 ,rollo1 ,i believe we'll g4 ,!   
wor/ t w happ5 w be1 t y may get        
fright5$ a little4 ,we c't get hurt4    
,:y c't we get hurt8 said ,rollo4  ,:y1 
ev5 if x comes on to bl[ h>d1 x w       
probably be a /eady gale1 & ,i c run    
be=e x1 if ,i c't d any?+ else4 ,& !re  
c't be mu* ( a sea 9 ?is pond4  ,rollo  
did n "k :at ,jonas meant by mu* ( a sea
 9 ! pond2 b1 z ,jonas imm$iately w5t to
 "w tak+ ! horse out ( ! wagon1 ,rollo  
did n ask any que/ions4 ,! boys         
unh>ness$ ! horse1 = ,jonas said he w\ld
 /& easi] out ( h>ness1 & !y might be   
gone m ?an an h\r4 ,!y fa/5$ him !n to a
 tree1 & p\r$ ! oats d[n be=e him ^u !  
gr\nd4 ,!n ,jonas help$ ,rollo into !   
boat1 & put 9 ! t9 pail conta9+ _!      
lun*eon1 & also ! umbrella2 ?\gh he said
 he did n ?9k x w\ld ra9 be=e !y got    
back4 ,!n he %ov$ (f ! boat1 & jump$ 9  
himself2 & v soon !y 7 glid+ smoo?ly    

along out ( ! cove4  ,rollo want$ to r[2
 & s ,jonas let him take "o o>1 :ile he 
himself sat 9 ! /]n ) ! paddle4 ,rollo  
soon le>n$ ! prop] motion1 s t 8 ef=ts  
assi/$ consid]ably 9 propell+ ! boat4   
,!y f\nd1 :5 !y 7 out at a little       
di/ance ^u ! wat]1 t ! w9d blew mu* h>d]
 ?an ,rollo _h expect$4  ,jonas1 said   
he1 ! w9d bl[s m "h ?an x did ^u ! %ore4
  ,no1 said ,jonas1 only we feel x m "h 
?an :5 we 7 "u ! lee ( ! l&4  ,:at d y  
mean by ! lee ( ! l&8 said ,rollo4  ,i  
mean ! %elt] ( x1 repli$ ,jonas4 ,:5ev] 
a %ip at sea is %elt]$ by any?+1 !y say 
! %ip is "u its lee4  ,! boys w5t on1   
,rollo r[+1 & ,jonas paddl+ beh9d1 until
 at l5g? ,rollo got tir$4 ,jonas !n told
 him to spread ! umbrella1 & hold x up =
 a sail4 ,rollo did s4 ,! w9d 0 bl[+    
pretty ne>ly 9 ! direction 9 :i* !y 7   
go+1 &1 by its impulse ^u ! umbrella1 x 
caus$ x to pull v h>d4 ,rollo re/$ !    
middle ( ! h&le ( ! umbrella ^u 8 %\ld]1
 hold+ ! crook 9 8 h&1 turn+ x 9 su* a  
position z to pres5t ! op5 "p ( !       

umbrella fairly to ! w9d4 ,jonas cont9u$
 to paddle1 & s !y w5t on v prosp]\sly  
until !y _h got two ?irds across ! pond1
 :5 ,jonas ord]$ ,rollo to take 9 sail4 
,:y1 said ,rollo1 we h n got across yet4
  ,no1 repli$ ,jonas1 b ! w9d is tak+ u 
out ( our c\rse4  ,rollo drew d[n !     
umbrella1 & look$ ar\nd4 ,!y 7 /ill at a
 consid]able di/ance f ! %ore4 ,jonas   
ext5d$ 8 paddle out into ! wat] z f> z  
he c\ld rea*1 & !n drew x 9 t[>ds him ) 
sev]al quick & /rong /rokes1 z if he 7  
endeavor+ to pull ! /]n ( ! boat1 9 :i* 
he 0 sitt+1 r\nd4  ,:at are y do+ s =8  
said ,rollo4  ,i am try+ to br+ h] up   
into ! w9d1 repli$ ,jonas4  ,:at is t =8
 ask$ ,rollo4  ,:y1 we've drift$ to     
leew>d1 said ,jonas1 & ,i mu/ br+ h] up2
 = we want to l& ar\nd beh9d t po9t on !
 />bo>d b[4  ,rollo did n und]/&        
,jonas's te*nical language v well4 ,he  
p>ticul>ly did n "k :at ,jonas meant by 
br++ h] up1 = x seem$ to him t ! pond 0 
p]fectly level1 s t !re 0 no up or d[n  
ei!r way4 ,he did n "k t1 9 sea         

language1 aga9/ ! w9d 0 always up1 & ) !
 w9d1 d[n4  ,jonas f\nd x h>d to br+ !  
boat up into ! w9d4 ,! waves _h begun to
 be pretty l>ge1 & !y beat aga9/ ! b[s (
 ! boat1 & "s ( ! wat] da%$ ov] ^u      
,rollo4 ,! w9d blew q heavily1 too2 & n[
 t !y _h *ang$ _! direction s z to br+ !
 w9d ^u _! side1 x emb>rass$1 if x did n
 absolutely ret>d _! progress4 ,"s drops
 ( ra9 also began to fall4  ,h[ev]1 by  
h>d & p]sev]+ ex]tion1 ,jonas at l5g?   
succe$$ 9 urg+ ! boat =w>d until he     
began to draw nigh to ! po9t ( l&2 &    
soon aft]w>ds !y came "u ! %elt] ( x1   
:]e ! wat] 0 smoo?1 & ! air comp>atively
 /ill4 ,"h ,rollo put 9 8 o> aga91 & !y 
pass$ along close "u a high %ore1 = "s  
di/ance1 until !y came to ! l&+4 ,"h !y 
fa/5$ ! boat1 & !n began to walk along  
up ! road4  ,! road lay ?r\gh ! woods1 &
 among hills1 s t x 0 %elt]$2 & ! only  
indications ( ! w9d :i* ! boys notic$1 0
 a di/ant ro>+ s\nd among ! =e/s4 ,!y   
came at l5g? to ! bridge1 :]e !y f\nd   
sev]al workm5 busily engag$ 9 lay+      

abutm5ts ( /one1 b ! c>p5t] himself 0 n 
!re4 ,! m5 told ,jonas t he _h gone ab\t
 half a mile away1 on a by-road1 to     
select & cut "s timb] to be us$ 9 !     
con/ruction ( ! bridge4  ,h[ long w he  
be gone8 ask$ ,jonas4  ,he w be gone two
 or ?ree h\rs1 said a man ) a /one hamm]
 9 8 h&4  ,:at %all we d n[8 ask$       
,rollo1 address+ ,jonas1 aft] a %ort    
pause4  ,keep on until we f9d him1      
repli$ ,jonas4 ,b y may /ay "h & see !m 
build ! bridge1 :ile ,i g aft] ! c>p5t]4
  ,accord+ly ,jonas w5t on1 leav+ ,rollo
 seat$ ^u a bank wat*+ ! "w4 ,9 ab\t    
?ree qu>t]s ( an h\r1 he return$2 & !n  
he & ,rollo w5t back to ! boat4 ,! w9d  
_h all ?is "t cont9u$ to increase1 ?\gh 
!y 7 s mu* %elt]$1 t !y did n notice x  
mu*4  ,jonas1 h[ev]1 obs]v$ t "s light1 
scudd+ cl\ds 7 fly+ across ! sky1 v l[1 
be+ app>5tly f> b5ea? ! o!r cl\ds4 ,:5  
!y rea*$ ! boat1 ,rollo propos$ t !y    
%\ld /op & eat "s lun*eon2 b ,jonas said
 t he %\ld eat 8 ) a bett] appetite on !
 o!r side ( ! pond4 ,s he ha/5$ ,rollo  

into ! boat1 &1 talk+ 8 /ation 9 ! /]n1 
he began to ply 8 paddle ) all 8 =ce1   
runn+ ! boat along "u ! %elt] ( ! high  
%ore4  ,!re isn't mu* w9d1 ,jonas1 said 
,rollo4  ,we c tell bett] :5 we come    
r\nd ! po9t1 repli$ ,jonas4  ,rollo     
obs]v$ t ,jonas look$ a little anxi\s1 &
 he also seem$ to be ex]t+ himself s mu*
 9 ! long1 /eady /rokes ( 8 paddle1 t x 
appe>$ to be r an int]ruption to him to 
he> & answ] que/ions4 ,rollo !re=e did n
 talk4 ,he f\nd1 h[ev]1 z he drew ne> ! 
po9t1 t ! waves 7 runn+ by x1 ) great   
spe$ & =ce1 d[n ! pond4 ,z ! boat %ot   
out f ! %elt] ( ! po9t into ?is place ( 
exposure1 ! /orm /ruck !m sudd5ly1 ) a  
bla/ :i* swept ! b[s ( ! boat at once   
r\nd out ( h] c\rse1 & da%$ ! spray f ! 
waves all ov] ,rollo's face & %\ld]s4 ,x
 0 ) great difficulty t ,jonas c\ld br+ 
! boat to ! w9d aga94  ,he succe$$1     
h[ev]1 at l5g?1 & !y w5t on1 = "s "t1   
pit*+ & toss+1 ?r\gh ! waves1--! w9d    
press+ s h>d ^u ! boat t x 0 v difficult
 = ,jonas to make any headway4 ,! w9d _h

 *ang$ its direction1 s t x blew n[     
almo/ exactly across _! c\rse2 & x      
requir$ great ex]tion = ,jonas to prev5t
 be+ bl[n away d[n ! pond1 out ( 8 track
 altoge!r4  ,9 ! mean "t1 ! w9d r       
increas$ ?an dim9i%$2 & ! wat] da%$ 9 s 
mu* ov] ! b[s t ,rollo _h to dip x up ) 
! cov] ( ! t9 pail1 & p\r x out ov] !   
side ( ! boat into ! pond aga94 ,!y 7   
go+ on 9 ?is way1 bo? toil+ v           
labori\sly1 :5 sudd5ly !y began to he> a
 s\nd l di/ant ?und]1 some:at l\d] ?an !
 ord9>y ro>+ ( ! w9d4 ,!y bo? look$     
t[>ds ! %ore 9 ! direction f :i* ! s\nd 
came4 ,on ! declivity ( a range ( hills 
cov]$ ) =e/s !y saw an unusual commotion
 among ! trees4 ,! tops 7 b[$ d[n )     
great =ce2 ! bran*es 7 brok5 (f1 &      
,jonas ?\ght t he c\ld see fragm5ts ( !m
 fly+ 9 ! air2 & pres5tly1 f>!r d[n1 he 
obs]v$ sev]al tall p9es b5d+ ov]1 & !n  
s9k+ d[n till !y disappe>$4  ,:at is x8 
said ,rollo4  ,a squall1 said ,jonas1--&
 com+ d[n directly ^u u4  ,:at %all we  
d8 ask$ ,rollo4  ,put ! boat be=e ! w9d1

 repli$ ,jonas1 & let h] run3 we mu/ g  
:]e ! squall c>ries u4  ,jonas          
imm$iately began to pull ! /]n ( ! boat 
ar\nd ) 8 paddle1 s z to turn ! head ( x
 away f ! qu>t] :i* ! w9d 0 bl[+ f2 & !n
 ! w9d drove ! boat along v rapidly ov] 
! waves1 :i* curl$ & foam$ on ea* side1 
driv+ onw>d ) great fury4 ,:5 !y look$  
ar\nd beh9d !m1 !y saw t ! pond1 :i* 0 (
 a v d>k color1 ?\gh spott$ ) ! :ite    
tips ( ! waves all ov] its surface1 0   
almo/ black = a l>ge space 9 ! direction
 f :i* ! squall 0 com+4 ,x advanc$ )    
great rapidity1 & at la/ /ruck ! boat ) 
a noise l ?und]4 ,! fro? & foam flew ov]
 ! surface ( ! wat] l tufts ( cotton1 & 
! boat seem$ to fly along ! wat] ) almo/
 z mu* spe$ z !y2 & ! ro>+ ( ! w9ds &   
waves 0 s l\d t ,rollo _h great         
difficulty 9 mak+ ,jonas he> :at he _h  
to say4 ,aft] a few m9utes1 ! viol5ce ( 
! w9d some:at abat$2 b x /ill blew a    
/eady & furi\s gale1 s t ,jonas _h to   
keep 8 boat directly be=e x4 ,?us !y 7  
driv5 on1 :]ev] ! w9d *ose to c>ry !m1 =

 m ?an half an h\r4  ,!n !y began to    
draw ne> ! l&1 f>1 h[ev]1 v f> f ! place
 :]e !y _h int5d$ to g4 ,rollo obs]v$ t 
,jonas 0 look+ out v eag]ly t[>ds !     
%ore1 & he ask$ him :at he 0 look+ =4   
,:y1 "h we are1 said ,jonas1 on a lee   
%ore1 & ,i am look+ out = a place to l&4
  ,rollo look$1 & saw t ! waves 7 tumbl+
 ) great viol5ce ^u ! rocks & gravelly  
bea*es :i* l9$ ! %ore1 & he 0 afraid t !
 boat w\ld get da%$ to pieces ^u !m4    
,jonas1 h[ev]1 obs]v$ a l>ge tree1 :i*  
orig9ally /ood ^u ! bank1 b :i* _h fall5
 ov]1 & n[ lay ) its top p>tly subm]g$4 
,he ?\ght t ?is might af=d him "s %elt]1
 & s he made great ex]tions to guide !  
boat s z to br+ x 9 to ! %ore ar\nd     
beh9d ?is tree4 ,by means ( great ef=ts 
he succe$$2 & s he & ,rollo bo? escap$  
safe to l&4  ,! boys did n get home     
until late t night1 = !y 7 ?r[n ^u !    
%ore ne>ly two miles f ! ,mill village1 
& ( c\rse !y _h t di/ance to walk4      
,jonas 0 deta9$ a little !re1 too1 9    
mak+ arrangem5ts to s5d a boy = ! boat  

aft] ! /orm _h subsid$4 ,:5 !y got home1
 ,rollo's fa!r said t he 0 sorry = _!   
fatigues & exposures1 b he 0 v glad t   
,jonas _h p]sev]$ & f\nd ! c>p5t]2 = !  
high w9d _h bl[n d[n ! back *imney &    
brok5 ! ro( ov] ! kit*51 & x 0 v        
necess>y to h x repair$ imm$iately4     
,,que/ions4      ,:at is mom5tum8 ,has  
air mom5tum1 :5 x is 9 motion1 z        
well z wat]8 ,at :at "t 9 ! spr+ ( ! ye>
 does !     sun rise at six o'clock8    
,:at did ,rollo ?9k 0 ! prospect     9  
respect to ! wea!r8 ,:at did ,jonas ?9k8
 ,:at is meant     by be+ "u ! lee ( a  
%ore8 ,:at is a squall8 ,:at            
indications did ,jonas obs]ve ( !       
approa* ( ! squall8     ,:at c\rse did  
he pursue 9 ord] to avoid ! dang] ( x8  
,,*apt] ,,xii4  ,,air ,,at ,,re/4   ,a  
few days aft] ! adv5ture describ$ 9 !   
prec$+ *apt]1 ,rollo he>d 8 fa!r propos+
 to 8 "m t !y %\ld take a walk ! next   
morn+ be=e breakfa/4 ,rollo want$ to g  
too4 ,8 fa!r said t !y %\ld be v glad to
 h 8 company2 & he promis$ to wake him 9

 season4  ,rollo felt r sleepy1 :5 8    
fa!r call$ him ! next morn+2 b he jump$ 
up & dress$ himself1 & 0 ready fir/ (   
all4 ,x 0 a cool1 b a v pleasant morn+4 
,! sun 0 j com+ up4 ,! gr\nd 9 ! pa?    
be=e ! door 0 froz5 a little1 & ! air   
seem$ v /ill4  ,:5 ,rollo's "m came out 
to ! door1 %e said1--  ,well1 husb&1 :i*
 way %all we g8  ,up on ! rocks1 said   
,rollo2 let's g up on ! rocks1 "m4 ,x w 
be beautiful !re ?is morn+4  ,well1     
repli$ 8 "m2 we'll g up on ! rocks4  ,! 
place :i* ,rollo call$ ! rocks1 0 !     
summit ( a rocky hill1 :i* _h a grassy  
slope ^u "o side1 by :i* !y c\ld asc5d1 
& a precipice ( ragg$ rocks ^u ! o!r4   
,!re 0 a v pleasant prospect f ! top ( !
 rocks4  ,z !y walk$ along1 ,rollo said 
t x 0 v diff]5t wea!r t /ill morn+1 f   
:at x 0 ! day t he & ,jonas 7 out ^u !  
pond4  ,yes1 said 8 fa!r1 y _h an       
opportunity to see ! effects ( air 9    
motion !n4  ,& n[ air at re/1 repli$    
,rollo4  ,pretty ne>ly1 said 8 fa!r4    
,yes1 sir1 entirely1 said ,rollo2 !re is

 no w9d at all1 ?is morn+3 hold up y\r  
h&1 & y c feel4  ,s ,rollo /opp$ a mom5t
 ^u ! grass1 & held up 8 h& to see :e!r 
!re 0 any w9d4  ,i "k !re is n any w9d t
 y c p]ceive 9 t way1 said 8 fa!r4  ,h[ 
c we p]ceive x1 !n8 said ,rollo4  ,i'll 
tell y1 repli$ 8 fa!r1 :5 we get to !   
top ( ! hill4  ,!y rea*$ ! top ( ! hill 
soon aft] ?is1 & sat d[n ^u a smoo?     
/one4 ,!re 0 a v wide prospect spread   
out be=e !m1--fields1 =e/s1 hamlets1    
/reams1--& "h & !re1 scatt]$ ov] !      
l&scape1 a little pat* ( sn[4 ,! sun 0 j
 up1 & ! :ole sc5e 0 v bright &         
beautiful4  ,n[1 fa!r1 said ,rollo1 tell
 me h[ y "k t !re is any w9d at all4  ,i
 did n say t !re 0 any w9d4 ,i said     
motion ( ! air4  ,:y1 fa!r1 repli$      
,rollo1 ,i ?\ght t w9d 0 motion ( ! air4
  ,s x is1 said 8 fa!r2 b all motion ( !
 air is n w9d4 ,w9d is a curr5t ( air1 t
 is1 a progressive motion2--& 9 fact1   
!re is1 ?is morn+1 a slight curr5t f !  
we/w>d4  ,h[ c y tell1 fa!r8 ask$       
,rollo4  ,by ! smokes f ! *imneys2 don't

 y see t !y all lean a little f ! we/   
t[>ds ! ea/8  ,n b a little1 fa!r2--&   
!re's "o1 f t r$ h\se1 :i* goes up      
exactly /raight4  ,yes1 said 8 fa!r1 !re
 is "o2 b1 9 g5]al1 ! columns ( smoke   
lean2 :i* is pro( t !re is a g5tle      
curr5t ( air to ! ea/w>d4  ,we/w>d1 y   
said1 fa!r1 rejo9$ ,rollo4  ,yes1 f !   
we/w>d1 b to ! ea/w>d4  ,t is :at is    
call$ a progressive motion1 cont9u$     
,rollo's fa!r2 t is1 ! :ole body ( air  
makes progress2 x advances f we/ to ea/4
 ,b !re is ano!r k9d ( motion1 call$ a  
vibratory motion4  ,:at k9d ( a motion  
is t1 fa!r8 ask$ ,rollo4  ,x is a v h>d 
k9d to describe1 at any rate1 said 8    
fa!r4 ,x is a k9d ( quiv]+1 :i* beg9s 9 
"o place & spreads 9 e direction4 ,don't
 y he> a k9d ( a ?ump+ s\nd8  ,yes1 said
 ,rollo1 a great way (f2 :at is x8      
,look ov] across ! pond !re1 said 8     
fa!r2 don't y see t man cutt+ wood8     
,yes1 said ,rollo2 t's :at makes !      
noise4--,no1 fa!r1 he cont9u$1 aft] a   
mom5t's pause1 t's n x4 ,look1 fa!r1 &  

y'll see t ! ?ump+ s\nd comes :5 8 axe  
is lift$ up4  ,!y all look$1 & f\nd t x 
0 z ,rollo _h said4 ,! /rokes ( ! axe   
kept "t1 pretty well1 ) ! s\nd ( bl[s1  
:i* !y he>d1 only ! s\nds did n         
correspond ) ! desc5t ( ! axe4 ,:5 ! axe
 appe>$ to /rike ! wood1 !y did n he>   
any s\nd1 b !y did he> "o e "t ! axe 0  
lift$ up4  ,s1 y see1 said ,rollo1 x is 
n t man t we he>4 ,!re mu/ be "s o!r man
 cutt+ wood4  ,we w wait a m9ute1 said 8
 fa!r1 until he gets ! log cut (f1 & !n 
he w /op cutt+2 & we w see :e!r we cease
 to he> ! s\nd4  ,s !y sat /ill1 & wat*$
 ! man = a m9ute4 ,pres5tly he /opp$    
cutt+1--&1 to ,rollo's great surprise1 !
 s\nd /opp$ too4  ,t's /range1 said     
,rollo4  ,9 a mom5t m1 ! man _h roll$ ! 
log ov]1 & comm5c$ cutt+ ^u ! o!r side2 
& 9 an in/ant aft] he began to cut1     
,rollo began to he> ! s\nd ( /rokes     
aga94  ,yes1 said ,rollo1 x mu/ be 8    
cutt+ t we he>2 b x is v /range t he    
makes a noise :5 he lifts up 8 axe1 & no
 noise :5 x goes d[n4  ,i'll tell y h[ x

 is1 said 8 fa!r4 ,he makes ! noise :5 8
 axe goes d[n2 b1 !n1 x takes "s little 
"t = ! s\nd to get "h2 & by ! "t ! s\nd 
gets "h1 8 axe is up4  ,o1 said ,rollo1 
is t x8  ,yes1 repli$ 8 fa!r1 t is x4   
,rollo wat*$ ! motion ( ! axe sev]al    
m9utes long] 9 sil5ce1 & !n 8 att5tion 0
 attract$ by ! s++ ( a bird ^u a tree 9 
8 fa!r's g>d51 at a %ort di/ance bel[   
him4  ,pretty soon1 h[ev]1 8 "m said t x
 0 "t = h] to return2 & !y all1         
accord+ly1 arose f _! seats1 & rambl$   
along toge!r a %ort di/ance ^u ! br[ ( !
 hill1 b t[>ds home4  ,!n ! s\nd moves  
along ?r\gh ! air1 said ,rollo1 f ! man 
to u4  ,yes1 said 8 fa!r2 t is1 !re is a
 vibratory motion ( ! air1--a k9d (     
quiv]+1--:i* beg9s :]e ! man is1 &      
spreads all ar\nd 9 e direction1 until x
 rea*es u4 ,b !re is no progressive     
motion2 t is1 none ( ! air itself1 :]e !
 man is at "w1 leaves him1 & comes to u4
  ,b1 husb&1 said ,rollo's "m1 ,i don't 
see h[ any?+ c come f :]e ! man is1 to  
u1 unless x is ! air itself4  ,x is r   

h>d to und]/&1 said 8 fa!r4 ,b ,i c make
 an exp]im5t ) a /r+1 :5 we get home1 t 
w %[ y some?+ ab\t x4  ,!y rambl$ ab\t  
among ! rocks = a %ort "t long]1 & !n !y
 desc5d$ by a /eep & crook$ pa?1 9 a    
diff]5t place f :]e !y _h asc5d$4 ,:5 !y
 _h got ne>ly home1 ,rollo said t he    
w\ld run =w>d & get 8 fa!r's ball ( tw9e
 & br+ x out2 & s h x all ready = !     
exp]im5t4  ,accord+ly1 :5 ,rollo's fa!r 
& "m arriv$ at ! front door1 !y f\nd    
,rollo ready !re ) a small ball ( tw9e 9
 8 h&1 ab\t z l>ge z an apple4  ,n[1    
,rollo1 said 8 fa!r1 y may take hold ( !
 end ( ! tw9e1 & walk along out into !  
/reet1 :ile ,i hold ! ball1 & let ! /r+ 
unw9d4  ,rollo did s4 ,he drew out a    
long piece ( tw9e1 z long z ! :ole front
 ( ! h\se1 & !n he /opp$ to ask 8 fa!r  
if t 0 en\gh4  ,no1 said 8 fa!r2 walk   
along4  ,s ,rollo walk$ on = "s di/ance 
f>!r1 until1 at la/1 ! ball 0 entirely  
unw\nd4 ,rollo _h "o end ( x1 & 0 /&+ at
 "s di/ance d[n ! road1 :ile 8 fa!r1 ) !
 o!r end1 /ood at ! gate ( ! front y>d4 

,! middle ( ! /r+ hung d[n pretty ne> to
 ! gr\nd4  ,draw tight1 ,rollo1 said 8  
fa!r4  ,s ,rollo pull$ a little h>d]1 & 
by t means drew ! l9e /raight]4  ,n[1   
said 8 fa!r1 walk along sl[ly4  ,s      
,rollo walk$ along1 draw+ ! end ( ! l9e 
) him4 ,8 fa!r foll[$ ) ! o!r end4 ,?us 
!y advanc$ sev]al /eps along ! side ( ! 
road4  ,!re1 said 8 fa!r4 ,/op4 ,t1 y   
see1 0 a progressive motion4  ,yes1 sir1
 repli$ ,rollo4  ,! :ole /r+ advanc$    
along ! road1 add$ 8 fa!r4 ,x made      
progress1 & s x 0 a progressive motion4 
,n[1 fa/5 y\r end ( ! /r+1 ,rollo1 to t 
tree directly beh9d y4  ,rollo look$    
beh9d him1 & saw t he 0 /&+ ne> a small 
maple-tree1 :i* _h be5 plant$1 a few    
ye>s be=e1 by ! side ( ! road4  ,tie x  
"r ar\nd ! /em ( ! tree1 said 8 fa!r1   
ab\t z high z y\r %\ld]4  ,rollo fa/5$ !
 /r+ z 8 fa!r _h direct$4 ,!n 8 fa!r    
fa/5$ 8 end1 9 ! same way1 to ano!r     
tree1 :i* 0 gr[+ ne> :]e he 0 /&+4  ,n[1
 said he1 !re c be no m progressive     
motion1 b !re c be a vibratory "o4 ,take

 hold ( ! /r+ ne> :]e x is fa/5$ to !   
tree4  ,rollo took hold ( x1 z 8 fa!r _h
 direct$1 & !n 8 fa!r told him to %ut 8 
eyes4 ,:5 8 eyes 7 %ut1 s t he c\ld n   
see1 8 fa!r said t he 0 go+ to /rike !  
/r+1 at 8 end ( x1 ) 8 p5cil-case1 & he 
ask$ ,rollo to obs]ve :e!r he c\ld feel 
any motion4  ,rollo held v /ill1 :ile 8 
fa!r /ruck ! /r+2 & imm$iately aft]w>ds 
he call$ out1 ,yes1 sir4 ,!n 8 fa!r     
/ruck ! /r+ aga91 sev]al times1 & e "t  
,rollo c\ld feel a di/9ct vibratory or  
quiv]+ motion1 :i* 0 transmitt$ v       
rapidly ?r\gh ! /r+1 f "o end to ! o!r2 
al?\gh1 z ! /r+ 0 fa/5$ by bo? ends to !
 trees1 x 0 evid5t t !re c\ld be no     
progressive motion4  ,rollo's "m _h be5 
/&+ all ?is "t at ! /ep ( ! door1 wat*+ 
! progress ( ! exp]im5t2 &1 :5 %e saw ! 
expression ( satisfaction ^u ,rollo's   
c\nt5ance1 :ile he 0 /&+1 ) 8 eyes %ut1 
hold+ ! end ( ! /r+1 %e want$ to come & 
take hold ( x h]self1 s z to see :at    
sort ( a s5sation ! vibratory motion ( !
 /r+ produc$4  ,s %e came out ?r\gh !   

gate1 & ask$ ,mr4 ,holiday to wait a    
mom5t :ile %e w5t to :]e ,rollo 0 /&+1 &
 took hold ( ! /r+4 ,b he said t x w\ld 
n be necess>y = h] to g !re1 z %e c\ld  
take hold ( 8 end ( ! l9e j z well1 &   
let ,rollo /rike ! o!r end4  ,!y        
accord+ly p]=m$ ! exp]im5t 9 t way1 &   
,rollo's "m c\ld feel ! vibrations v    
di/9ctly4  ,"o ?+ y mu/ obs]ve1 said    
,mr4 ,holiday2 & t is1 t ! vibrations   
pass along f "o end ( ! l9e to ! o!r v  
quick inde$4 ,we feel !m at "o end almo/
 at ! same in/ant t ! o!r end is /ruck4 
,exactly at ! same in/ant1 sir1 said    
,rollo4  ,no1 repli$ 8 fa!r1 n exactly  
at ! same in/ant1 ?\gh x is v ne>ly !   
same4  ,i did n see any diff]5ce1 said  
,rollo4  ,no1 repli$ 8 fa!r1 y _c       
p]ceive any diff]5ce 9 s %ort a /r+1 b  
if we _h a /r+1 or a wire1 a mile long1 
,i presume t we %\ld f9d t x w\ld       
require a s5sible p]iod ( "t to transmit
 ! vibrations f "o end to ! o!r4  ,:at d
 y mean by a s5sible p]iod ( "t1 fa!r8  
ask$ ,rollo4  ,:y1 a l5g? ( "t t y c\ld 

p]ceive1 said 8 fa!r2 j z x 0 ) ! man   
cutt+ wood4 ,we c\ld see t "s "t elaps$ 
betwe5 ! /rik+ ( ! bl[1 & our he>+ !    
s\nd4  ,yes1 said ,rollo1 j z long z x  
took him to lift up 8 axe4  ,t is n     
c]ta91 repli$ 8 fa!r1 because ! s\nd t  
we he>d might h belong$ to a bl[ made   
be=e4 ,t is1 x might be t1 :5 he _h     
/ruck "o bl[1 he _h "t to raise 8 axe & 
/rike ano!r1 & !n raise 8 axe aga91 be=e
 ! s\nd ( ! fir/ bl[ came to u4  ,yes1  
sir1 said ,rollo1 ,i und]/&4  ,mr4      
,holiday !n told ,rollo t he might      
unfa/5 ! /r+ f ! trees1 & w9d x up aga9 
into a ball1 & br+ x 94 ,!n he &        
,rollo's "m w5t into ! h\se1 to see if  
breakfa/ 0 n almo/ ready4  ,t morn+1    
aft] !y 7 all seat$ at ! breakfa/ table1
 ,rollo said to 8 fa!r t he did n       
exactly und]/& :at sort ( a motion !    
vibratory motion ( ! air 01 aft] all4   
,no1 said 8 fa!r1 ,i suppose y d n4 ,&1 
9 fact1 ,i d n und]/& x v p]fectly      
myself4 ,i only "k t ! philosoph]s say1 
t1 :5 a man /rikes a bl[ ) an axe ^u a  

log ( wood1 x produces a little quiv]+  
motion ( ! air1 :i* spreads all ar\nd1  
d>t+ (f 9 e direction v swiftly4 ,if a  
boy /rikes a t9 pail ) a drum-/ick1 x   
makes ano!r k9d ( quiv]+ or vibration1  
:i* is diff]5t f t :i* is made by ! axe2
 b ,i don't "k precisely h[ x diff]s4   
,s1 :5 ! air is full ( s\nds1 on a /ill 
morn+1 x is full ( ^! little vibrations1
 l a /r+ :i* trembles f end to end1 ?\gh
 its ends are fa/5$ s t x _c move away4 
,!n ! air is nev] at re/1 said ,rollo's 
"m4  ,no2 c]ta9ly n1 :5 any s\nd is to  
be he>d2 & x is nev] p]fectly sil5t4    
,!re is "o ?+ v extraord9>y1 said ,mrs4 
,holiday4  ,:at is x8 ask$ ,rollo's     
fa!r4  ,:y1 t1 :5 a great _m s\nds are  
made at ! same "t1 %e repli$1--z1 =     
example1 :5 we are ^u ! top ( a hill1 on
 a /ill morn+1 & he> a great _m sep>ate 
s\nds1 z a man cutt+ wood1 birds s++1 a 
bell r++1 & p]haps a man %\t+ to 8      
ox51--all ^? trembl+s or vibrations1 be+
 9 ! air toge!r1 d n int]f]e ) "o ano!r4
  ,yes1 said ,mr4 ,holiday1 x is v      

extraord9>y inde$4 ,!y d n seem to      
int]f]e at all4 ,:5 !re are too _m      
s\nds1 or if !re is a w9d ) !m1 !y d    
int]f]e2 b1 9 a calm morn+1 l ?is1 :5 ! 
air is at re/1 y c he> a great _m di/ant
 s\nds v di/9ctly4  ,yes1 said ,rollo1 &
 ,i mean to g up to ! top ( ! rocks aga9
 aft] breakfa/1 & li/54                 
,,que/ions4      ,:at "t ( ! ye> 0 x :5 
,rollo took ?is walk8 ,h[ did     ,rollo
 satisfy himself t !re 0 no w9d at all8 
,h[ did 8     fa!r prove t !re 0 a      
little w9d8 ,is all motion ( !     air  
w9d8 ,:at two k9ds ( motion are m5tion$8
 ,:at s\nd did     !y he>8 ,:at made    
,rollo ?9k ! s\nd 0 n made by !     man 
:om !y saw cutt+ wood8 ,h[ did 8 fa!r   
expla9 ?is     ph5om5on8 ,:at exp]im5t  
did !y try ) ! /r+8 ,7     ! vibrations 
transmitt$ sl[ly or rapidly ?r\gh ! /r+8
     ,did ,rollo ?9k t he und]/ood      
p]fectly ! nature ( !     vibrations8   
,:at extraord9>y circum/ance did        
,rollo's "m     m5tion at ! breakfa/    
table8