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The Teaching of Geometry ⠃⠗⠋ braille edition

Grade 1 — uncontracted, letter-for-letter. Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 2 instead.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

557,465 braille cells · 590 embossed pages at 40×25 · 4,777 unrepresentable characters omitted

⠠⠅⠁⠗⠏⠊⠝⠎⠅⠊⠂⠀⠇⠕⠉⠲⠀⠉⠊⠞⠲⠀⠀⠼⠃⠃⠀⠠⠞⠓⠕⠎⠑⠀⠺⠓⠕⠀
⠉⠁⠗⠑⠀⠋⠕⠗⠀⠁⠀⠃⠗⠊⠑⠋⠀⠙⠑⠎⠉⠗⠊⠏⠞⠊⠕⠝⠀⠕⠋⠀⠞⠓⠊⠎⠀
⠏⠓⠁⠎⠑⠀⠕⠋⠀⠞⠓⠑⠀⠎⠥⠃⠚⠑⠉⠞⠀⠍⠁⠽⠀⠉⠕⠝⠎⠥⠇⠞⠀⠠⠚⠲⠀
⠠⠉⠁⠎⠑⠽⠂⠀⠠⠁⠀⠠⠎⠑⠟⠥⠑⠇⠀⠞⠕⠀⠠⠑⠥⠉⠇⠊⠙⠂⠀⠠⠙⠥⠃⠇⠊⠝⠂⠀
⠋⠊⠋⠞⠓⠀⠑⠙⠊⠞⠊⠕⠝⠂⠀⠼⠁⠓⠓⠓⠆⠀⠠⠺⠲⠀⠠⠚⠲⠀
⠠⠍⠄⠠⠉⠇⠑⠇⠇⠁⠝⠙⠂⠀⠠⠁⠀⠠⠞⠗⠑⠁⠞⠊⠎⠑⠀⠕⠝⠀⠞⠓⠑⠀
⠠⠛⠑⠕⠍⠑⠞⠗⠽⠀⠕⠋⠀⠞⠓⠑⠀⠠⠉⠊⠗⠉⠇⠑⠂⠀⠠⠝⠑⠺⠀⠠⠽⠕⠗⠅⠂⠀
⠼⠁⠓⠊⠁⠆⠀⠠⠍⠲⠀⠠⠎⠊⠍⠕⠝⠂⠀⠠⠥⠑⠃⠑⠗⠀⠙⠊⠑⠀
⠠⠑⠝⠞⠺⠊⠉⠅⠇⠥⠝⠛⠀⠙⠑⠗⠀⠠⠑⠇⠑⠍⠑⠝⠞⠁⠗⠤⠠⠛⠑⠕⠍⠑⠞⠗⠊⠑⠀
⠊⠍⠀⠠⠠⠭⠊⠭⠲⠀⠠⠚⠁⠓⠗⠓⠥⠝⠙⠑⠗⠞⠂⠀⠠⠇⠑⠊⠏⠵⠊⠛⠂⠀⠼⠁⠊⠚⠋⠲
⠀⠀⠀⠀⠀⠠⠠⠉⠓⠁⠏⠞⠑⠗⠀⠠⠠⠊⠧⠀⠀⠠⠠⠙⠑⠧⠑⠇⠕⠏⠍⠑⠝⠞⠀⠠⠠⠕⠋⠀
⠠⠠⠞⠓⠑⠀⠠⠠⠞⠑⠁⠉⠓⠊⠝⠛⠀⠠⠠⠕⠋⠀⠠⠠⠛⠑⠕⠍⠑⠞⠗⠽⠀⠀⠀⠠⠺⠑⠀
⠅⠝⠕⠺⠀⠇⠊⠞⠞⠇⠑⠀⠕⠋⠀⠞⠓⠑⠀⠞⠑⠁⠉⠓⠊⠝⠛⠀⠕⠋⠀⠛⠑⠕⠍⠑⠞⠗⠽⠀
⠊⠝⠀⠧⠑⠗⠽⠀⠁⠝⠉⠊⠑⠝⠞⠀⠞⠊⠍⠑⠎⠂⠀⠃⠥⠞⠀⠺⠑⠀⠉⠁⠝⠀⠊⠝⠋⠑⠗⠀
⠊⠞⠎⠀⠝⠁⠞⠥⠗⠑⠀⠋⠗⠕⠍⠀⠞⠓⠑⠀⠞⠑⠁⠉⠓⠊⠝⠛⠀⠞⠓⠁⠞⠀⠊⠎⠀
⠎⠞⠊⠇⠇⠀⠎⠑⠑⠝⠀⠊⠝⠀⠞⠓⠑⠀⠝⠁⠞⠊⠧⠑⠀⠎⠉⠓⠕⠕⠇⠎⠀⠕⠋⠀⠞⠓⠑⠀
⠠⠑⠁⠎⠞⠲⠀⠠⠓⠑⠗⠑⠀⠁⠀⠍⠁⠝⠂⠀⠇⠑⠁⠗⠝⠑⠙⠀⠊⠝⠀⠁⠝⠽⠀
⠎⠉⠊⠑⠝⠉⠑⠂⠀⠺⠊⠇⠇⠀⠓⠁⠧⠑⠀⠁⠀⠛⠗⠕⠥⠏⠀⠕⠋⠀⠧⠕⠇⠥⠝⠞⠁⠗⠽⠀
⠎⠞⠥⠙⠑⠝⠞⠎⠀⠎⠊⠞⠞⠊⠝⠛⠀⠁⠃⠕⠥⠞⠀⠓⠊⠍⠂⠀⠁⠝⠙⠀⠞⠕⠀⠞⠓⠑⠍⠀
⠓⠑⠀⠺⠊⠇⠇⠀⠑⠭⠏⠕⠥⠝⠙⠀⠞⠓⠑⠀⠞⠗⠥⠞⠓⠲⠀⠠⠎⠥⠉⠓⠀⠎⠉⠓⠕⠕⠇⠎
⠀⠍⠁⠽⠀⠎⠞⠊⠇⠇⠀⠃⠑⠀⠎⠑⠑⠝⠀⠊⠝⠀⠠⠊⠝⠙⠊⠁⠂⠀⠠⠏⠑⠗⠎⠊⠁⠂⠀
⠁⠝⠙⠀⠠⠉⠓⠊⠝⠁⠂⠀⠞⠓⠑⠀⠍⠁⠎⠞⠑⠗⠀⠎⠊⠞⠞⠊⠝⠛⠀⠕⠝⠀⠁⠀⠍⠁⠞⠀
⠏⠇⠁⠉⠑⠙⠀⠕⠝⠀⠞⠓⠑⠀⠛⠗⠕⠥⠝⠙⠀⠕⠗⠀⠕⠝⠀⠞⠓⠑⠀⠋⠇⠕⠕⠗⠀⠕⠋⠀
⠁⠀⠧⠑⠗⠁⠝⠙⠁⠂⠀⠁⠝⠙⠀⠞⠓⠑⠀⠏⠥⠏⠊⠇⠎⠀⠗⠑⠁⠙⠊⠝⠛⠀⠁⠇⠕⠥⠙⠀
⠕⠗⠀⠇⠊⠎⠞⠑⠝⠊⠝⠛⠀⠞⠕⠀⠓⠊⠎⠀⠺⠕⠗⠙⠎⠀⠕⠋⠀⠑⠭⠏⠕⠎⠊⠞⠊⠕⠝⠲

These are the same pages the .brf download embosses — form-feed breaks and all. BRF opens in braille software (Duxbury, BrailleBlaster), on embossers, and on refreshable displays.