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The filtration of public water-supplies ⠃⠗⠋ 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.

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

662,978 braille cells · 673 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.