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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 2 — contracted English braille (EBAE-compatible subset). Translated on this server by our own braille engine (BRF — Braille Ready Format, Library of Congress fdd000551). View Grade 1 instead.

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

175,786 braille cells · 184 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.