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The principles of science ⠃⠗⠋ 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.

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1,565,188 braille cells · 1,641 embossed pages at 40×25 · 7,065 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.