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The organisation of thought, educational and scientific ⠃⠗⠋ 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.

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267,003 braille cells · 281 embossed pages at 40×25 · 1,208 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.