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Practical Talks by an Astronomer ⠃⠗⠋ 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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222,865 braille cells · 233 embossed pages at 40×25 · 728 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.