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Practical Talks by an Astronomer ⠃⠗⠋ 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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266,586 braille cells · 282 embossed pages at 40×25 · 728 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.