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The filtration of public water-supplies ⠃⠗⠋ 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.

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

764,321 braille cells · 785 embossed pages at 40×25 · 7,914 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.