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Treatise on light - In which are explained the causes of that which occurs in reflexion, & in refraction and ⠃⠗⠋ 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

214,368 braille cells · 226 embossed pages at 40×25 · 322 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.