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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.