Transactions of the American Microscopical Society Volume 22-24

Transactions of the American Microscopical Society Volume 22-24

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 edition. Excerpt: ...result is obtained; that is, the water is alkaline to phenolphthalein and requires the addition of a certain amount of acid to make it neutral. This phenomenon is generally associated with the presence of microscopic organisms, as referred to below. (See Table XVI.) ll Chiefly Melosira and Synedra. 1! Chiefly Scenedesmus. The amount of free carbonic acid in ground water is generally higher than in surface waters. This may be seen by an inspection of Tables XVII, XVIII, and XIX. TABLE XVII TABLE SHOWING THE AMOUNT OF FREE CARBONIC ACID IN' VARIOUS DRIVE! WELLS ON LONG ISLAND CARBONIC WELL mrra aem (Pts. per mil.) Gravesend, driven wells..................... August 2), 1900.. 2.4 New Utrecht, driven wells................... July 20, 1901.. 4.0 Flatbush, driven wells...................... August 31, 1900.. 5.5 Pfalzgraf, driven wells...................... August 31, 1900.. 9.2 Blythebourne, driven wells.................. August 31, 1900.. 1.5 Far Rockaway, driven wells, before filtration. August 25, 1900.. 5.3 after filtration.. August 25, 1900.. 6.6 Long Island City, Station 1............... September 6, 1900.. 1.0 2.................. September 6,1900.. 3.5 3.................. September 6,190.1. 2.5 Jamaica Water-supply Co.................... September 7, 19(1).. 6.0 Montauk Water-works...................... September 7, 1900.. 6.5 German-America Water-supply Co........... September 7, 1900.. 2.0 Voodhaven P. S............................ September 8, 1900.. 3.0 Flushing Water-works...................... September 10, 1900.. 7.0 College Point Water-works.................. September 10, l9;l0.. 6.0 Oconee driven wells......................... September 14, 1900.. 2.0 Shetucket driven wells...................... September 14, 1900.. 7.0...show more

Product details

  • Paperback | 232 pages
  • 189 x 246 x 12mm | 422g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236739035
  • 9781236739032