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Natural Philosophy ⠃⠗⠋ 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.
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⠞⠓⠗⠕⠺⠀⠁⠀⠀⠎⠞⠕⠝⠑⠂⠀⠊⠞⠀⠺⠊⠇⠇⠀⠙⠑⠎⠉⠗⠊⠃⠑⠀⠁⠝⠀ ⠁⠏⠏⠗⠕⠭⠊⠍⠁⠞⠑⠀⠏⠁⠗⠁⠃⠕⠇⠊⠉⠀⠉⠥⠗⠧⠑⠀⠊⠝⠀⠋⠁⠇⠇⠊⠝⠛⠀ ⠞⠕⠀⠞⠓⠑⠀⠀⠛⠗⠕⠥⠝⠙⠲⠀⠠⠃⠥⠞⠀⠊⠋⠀⠺⠑⠀⠎⠓⠕⠥⠇⠙⠀ ⠁⠞⠞⠑⠍⠏⠞⠀⠞⠕⠀⠙⠑⠞⠑⠗⠍⠊⠝⠑⠀⠊⠞⠎⠀⠉⠕⠥⠗⠎⠑⠀ ⠁⠉⠉⠥⠗⠁⠞⠑⠇⠽⠂⠀⠺⠑⠀⠀⠎⠓⠕⠥⠇⠙⠀⠓⠁⠧⠑⠀⠞⠕⠀⠞⠁⠅⠑⠀⠊⠝⠞⠕ ⠀⠉⠕⠝⠎⠊⠙⠑⠗⠁⠞⠊⠕⠝⠀⠞⠓⠑⠀⠗⠑⠎⠊⠎⠞⠁⠝⠉⠑⠀⠕⠋⠀⠞⠓⠑⠀ ⠁⠊⠗⠂⠀⠞⠓⠑⠀⠀⠗⠕⠞⠁⠞⠕⠗⠽⠀⠍⠕⠞⠊⠕⠝⠀⠕⠋⠀⠞⠓⠑⠀⠎⠞⠕⠝⠑⠀ ⠥⠏⠕⠝⠀⠃⠑⠊⠝⠛⠀⠞⠓⠗⠕⠺⠝⠂⠀⠞⠓⠑⠀⠍⠕⠧⠑⠍⠑⠝⠞⠀⠕⠋⠀⠞⠓⠑⠀⠀ ⠑⠁⠗⠞⠓⠂⠀⠁⠝⠙⠀⠝⠥⠍⠑⠗⠕⠥⠎⠀⠕⠞⠓⠑⠗⠀⠉⠊⠗⠉⠥⠍⠎⠞⠁⠝⠉⠑⠎⠂ ⠀⠞⠓⠑⠀⠑⠭⠁⠉⠞⠀⠙⠑⠞⠑⠗⠍⠊⠝⠁⠞⠊⠕⠝⠀⠕⠋⠀⠀⠺⠓⠊⠉⠓⠀⠊⠎⠀⠁⠀ ⠍⠁⠞⠞⠑⠗⠀⠃⠑⠽⠕⠝⠙⠀⠞⠓⠑⠀⠏⠕⠺⠑⠗⠀⠕⠋⠀⠁⠇⠇⠀⠎⠉⠊⠑⠝⠉⠑⠎⠲ ⠀⠠⠝⠕⠞⠓⠊⠝⠛⠀⠃⠥⠞⠀⠁⠝⠀⠀⠁⠏⠏⠗⠕⠭⠊⠍⠁⠞⠑⠀ ⠙⠑⠞⠑⠗⠍⠊⠝⠁⠞⠊⠕⠝⠀⠕⠋⠀⠞⠓⠑⠀⠎⠞⠕⠝⠑⠄⠎⠀⠉⠕⠥⠗⠎⠑⠀⠊⠎⠀ ⠏⠕⠎⠎⠊⠃⠇⠑⠂⠀⠁⠝⠙⠀⠑⠧⠑⠗⠽⠀⠀⠎⠞⠑⠏⠀⠋⠕⠗⠺⠁⠗⠙⠀⠞⠕⠺⠁⠗⠙ ⠀⠁⠉⠉⠥⠗⠁⠉⠽⠀⠁⠝⠙⠀⠁⠃⠎⠕⠇⠥⠞⠑⠝⠑⠎⠎⠀⠺⠕⠥⠇⠙⠀⠗⠑⠟⠥⠊⠗⠑ ⠀⠎⠉⠊⠑⠝⠞⠊⠋⠊⠉⠀⠀⠁⠙⠧⠁⠝⠉⠑⠎⠀⠺⠓⠊⠉⠓⠀⠊⠞⠀⠺⠕⠥⠇⠙⠀ ⠏⠗⠕⠃⠁⠃⠇⠽⠀⠞⠁⠅⠑⠀⠉⠑⠝⠞⠥⠗⠊⠑⠎⠀⠞⠕⠀⠁⠉⠉⠕⠍⠏⠇⠊⠎⠓⠲⠀⠀ ⠠⠎⠉⠊⠑⠝⠉⠑⠂⠀⠞⠓⠑⠗⠑⠋⠕⠗⠑⠂⠀⠉⠁⠝⠀⠃⠽⠀⠝⠕⠀⠍⠑⠁⠝⠎⠀ ⠙⠑⠞⠑⠗⠍⠊⠝⠑⠀⠞⠓⠑⠀⠑⠭⠁⠉⠞⠀⠇⠊⠝⠑⠁⠗⠀⠉⠕⠥⠗⠎⠑⠀⠀⠞⠓⠁⠞⠀ ⠞⠓⠑⠀⠎⠞⠕⠝⠑⠀⠺⠊⠇⠇⠀⠞⠁⠅⠑⠀⠊⠝⠀⠊⠞⠎⠀⠋⠁⠇⠇⠲⠀⠠⠊⠞⠀⠉⠁⠝ ⠀⠍⠑⠗⠑⠇⠽⠀⠑⠎⠞⠁⠃⠇⠊⠎⠓⠀⠁⠀⠉⠑⠗⠞⠁⠊⠝⠀⠀⠃⠗⠕⠁⠙⠑⠗⠀ ⠏⠁⠞⠓⠀⠺⠊⠞⠓⠊⠝⠀⠺⠓⠊⠉⠓⠀⠞⠓⠑⠀⠎⠞⠕⠝⠑⠄⠎⠀⠍⠕⠧⠑⠍⠑⠝⠞⠀ ⠺⠊⠇⠇⠀⠗⠑⠍⠁⠊⠝⠲⠀⠠⠁⠝⠙⠀⠞⠓⠑⠀⠏⠁⠞⠓⠀⠀⠊⠎⠀⠞⠓⠑⠀⠺⠊⠙⠑⠗ ⠀⠞⠓⠑⠀⠎⠍⠁⠇⠇⠑⠗⠀⠞⠓⠑⠀⠏⠗⠕⠛⠗⠑⠎⠎⠀⠎⠉⠊⠑⠝⠉⠑⠀⠓⠁⠎⠀ ⠍⠁⠙⠑⠀⠊⠝⠀⠞⠓⠑⠀⠃⠗⠁⠝⠉⠓⠀⠊⠝⠀⠀⠟⠥⠑⠎⠞⠊⠕⠝⠲⠀⠠⠞⠓⠑⠀
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.