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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.