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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 · 7,688 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.