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How to Use the Popular Science Library; History of Science; General Index ⠃⠗⠋ 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.

Download .brf — Grade 2 Download .brf — Grade 1 Plain-text reader .txt

1,124,526 braille cells · 1,175 embossed pages at 40×25 · 3,762 unrepresentable characters omitted

⠠⠃⠑⠇⠇⠀⠠⠞⠑⠇⠑⠏⠓⠕⠝⠑⠀⠠⠎⠽⠌⠑⠍⠂⠀⠧⠊⠊⠂⠀⠼⠊⠃⠆⠀⠀⠀⠀⠀⠀
⠁⠥⠞⠕⠍⠁⠞⠊⠉⠀⠞⠑⠇⠑⠏⠓⠕⠝⠑⠎⠂⠀⠼⠁⠚⠋⠀⠀⠀⠀⠀⠀
⠠⠃⠢⠫⠊⠉⠞⠔⠑⠀⠠⠕⠗⠙⠻⠂⠀⠍⠫⠊⠉⠁⠇⠀⠐⠺⠀⠷⠂⠀⠭⠂⠀⠼⠉⠋⠀⠀⠀⠀
⠠⠃⠢⠛⠥⠑⠇⠇⠁⠀⠠⠉⠥⠗⠗⠢⠞⠂⠀⠭⠊⠧⠂⠀⠼⠉⠚⠑⠀⠀⠀⠀⠀⠀⠠⠃⠢⠀
⠠⠝⠑⠧⠊⠎⠂⠀⠗⠊⠍⠑⠀⠛⠗⠪⠹⠂⠀⠊⠂⠀⠼⠁⠃⠃⠆⠀⠀⠀⠀⠀⠀⠠⠌⠲⠀
⠠⠑⠇⠍⠕⠄⠎⠀⠠⠋⠊⠗⠑⠂⠀⠼⠁⠑⠓⠀⠀⠀⠀⠀⠀⠠⠃⠢⠵⠂⠀⠠⠅⠜⠇⠂⠀⠧⠂⠀
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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.