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How to Use the Popular Science Library; History of Science; General Index ⠃⠗⠋ 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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1,228,378 braille cells · 1,293 embossed pages at 40×25 · 3,762 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.