Skip to contentSkip to Braille Studio

Library / Physics / Treatise on light - In which are explained the causes of that which occurs in reflexion, & in refraction and / Braille

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.