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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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