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 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.