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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

⠠⠁⠝⠙⠗⠕⠍⠑⠙⠁⠂⠀⠝⠑⠃⠥⠇⠁⠀⠊⠝⠂⠀⠊⠊⠂⠀⠼⠁⠉⠑⠤⠋⠂⠀
⠼⠁⠉⠋⠤⠛⠂⠀⠼⠉⠑⠛⠂⠀⠼⠉⠋⠁⠆⠀⠀⠀⠀⠀⠀⠝⠑⠺⠀⠎⠞⠁⠗⠎⠀⠊⠝⠀
⠝⠑⠃⠥⠇⠁⠂⠀⠼⠉⠉⠃⠤⠉⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠇⠂⠀⠠⠙⠕⠍⠊⠝⠊⠟⠥⠑⠂⠀
⠭⠂⠀⠼⠊⠚⠤⠁⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠍⠊⠁⠂⠀⠭⠂⠀⠼⠉⠉⠛⠆⠀⠀⠀⠀⠀⠀
⠃⠇⠕⠕⠙⠀⠞⠗⠁⠝⠎⠋⠥⠎⠊⠕⠝⠀⠊⠝⠂⠀⠼⠉⠉⠓⠆⠀⠀⠀⠀⠀⠀⠉⠁⠥⠎⠑⠀
⠁⠝⠙⠀⠑⠋⠋⠑⠉⠞⠎⠂⠀⠭⠊⠂⠀⠼⠉⠛⠚⠤⠁⠆⠀⠀⠀⠀⠀⠀⠕⠋⠀
⠁⠙⠕⠇⠑⠎⠉⠑⠝⠉⠑⠂⠀⠭⠂⠀⠼⠃⠉⠛⠆⠀⠀⠀⠀⠀⠀⠏⠑⠗⠝⠊⠉⠊⠕⠥⠎⠂⠀
⠙⠊⠎⠉⠕⠧⠑⠗⠽⠀⠕⠋⠂⠀⠼⠁⠁⠃⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠍⠕⠛⠗⠁⠍⠎⠂⠀⠊⠂⠀
⠼⠃⠊⠑⠂⠀⠼⠉⠋⠋⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠍⠕⠍⠑⠞⠑⠗⠎⠂⠀⠊⠂⠀⠼⠓⠉⠤⠙⠂⠀
⠼⠉⠋⠋⠆⠀⠀⠀⠀⠀⠀⠋⠕⠗⠀⠛⠥⠎⠞⠎⠂⠀⠼⠃⠊⠑⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠗⠕⠊⠙
⠀⠠⠃⠁⠗⠕⠍⠑⠞⠑⠗⠂⠀⠊⠂⠀⠼⠛⠁⠂⠀⠼⠛⠃⠂⠀⠼⠉⠋⠋⠂⠀⠊⠧⠂⠀
⠼⠁⠃⠉⠤⠙⠂⠀⠼⠉⠓⠁⠀⠀⠀⠀⠀⠀⠠⠁⠝⠑⠎⠞⠓⠑⠞⠊⠉⠎⠂⠀
⠙⠊⠎⠉⠕⠧⠑⠗⠽⠀⠁⠝⠙⠀⠥⠎⠑⠀⠊⠝⠀⠎⠥⠗⠛⠑⠗⠽⠂⠀⠭⠂⠀⠼⠁⠃⠉⠤⠑⠂
⠀⠼⠁⠙⠓⠂⠀⠭⠧⠊⠂⠀⠼⠁⠓⠚⠂⠀⠼⠁⠓⠑⠆⠀⠀⠀⠀⠀⠀⠑⠋⠋⠑⠉⠞⠀⠕⠝⠀
⠊⠍⠏⠥⠇⠎⠑⠎⠂⠀⠭⠊⠂⠀⠼⠃⠚⠆⠀⠀⠀⠀⠀⠀⠠⠓⠊⠝⠙⠥⠀⠥⠎⠑⠀⠕⠋⠂⠀
⠭⠂⠀⠼⠁⠉⠆⠀⠀⠀⠀⠀⠀⠍⠑⠙⠊⠑⠧⠁⠇⠂⠀⠼⠙⠁⠀⠀⠀⠀⠀⠀
⠠⠁⠝⠑⠥⠗⠊⠎⠍⠎⠂⠀⠭⠂⠀⠼⠃⠓⠀⠝⠕⠞⠑⠆⠀⠀⠀⠀⠀⠀⠋⠕⠗⠍⠁⠞⠊⠕⠝⠀
⠁⠝⠙⠀⠗⠥⠏⠞⠥⠗⠑⠀⠕⠋⠂⠀⠼⠉⠉⠋⠆⠀⠀⠀⠀⠀⠀⠞⠗⠑⠁⠞⠍⠑⠝⠞⠀⠕⠋⠂
⠀⠼⠃⠓⠂⠀⠼⠊⠁⠤⠃⠀⠀⠀⠀⠀⠀⠠⠁⠝⠛⠑⠇⠀⠠⠋⠊⠎⠓⠂⠀⠭⠊⠊⠂⠀⠼⠁⠋⠙
⠀⠀⠀⠀⠀⠀⠠⠁⠝⠛⠑⠗⠂⠀⠭⠊⠂⠀⠼⠁⠉⠊⠂⠀⠼⠁⠙⠁⠆⠀⠀⠀⠀⠀⠀⠃⠁⠎⠊⠉
⠀⠉⠁⠥⠎⠑⠎⠀⠕⠋⠂⠀⠊⠭⠂⠀⠼⠁⠑⠉⠂⠀⠼⠁⠋⠋⠆⠀⠀⠀⠀⠀⠀
⠑⠭⠏⠗⠑⠎⠎⠊⠕⠝⠀⠕⠋⠂⠀⠃⠽⠀⠍⠕⠝⠅⠑⠽⠎⠂⠀⠭⠧⠂⠀⠼⠋⠙⠆⠀⠀⠀⠀⠀
⠊⠝⠀⠧⠁⠗⠊⠕⠥⠎⠀⠎⠑⠝⠞⠊⠍⠑⠝⠞⠎⠂⠀⠭⠊⠂⠀⠼⠁⠙⠋⠂⠀⠼⠁⠙⠓⠂⠀
⠼⠁⠙⠊⠂⠀⠼⠁⠑⠚⠆⠀⠀⠀⠀⠀⠀⠏⠁⠊⠝⠀⠁⠝⠙⠂⠀⠼⠁⠃⠚⠆⠀⠀⠀⠀⠀⠀
⠏⠓⠽⠎⠊⠉⠁⠇⠀⠁⠉⠉⠕⠍⠏⠁⠝⠊⠍⠑⠝⠞⠎⠀⠕⠋⠂⠀⠊⠭⠂⠀⠼⠃⠙⠚⠤⠁⠆⠀

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