Report Volume 18, PT. 1900

Report Volume 18, PT. 1900

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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. 1901 edition. Excerpt: ... grown at 65 F., hundreds of thousands; number of bacteria per cc able to liquefy gelatin, many; number of bacteria per cc when incubated at 100 F., 475, of which 25 were acid-producing germs. Results of fermentation tests: Lactose bouillon--glucose bouillon, -positive in 3 us, also in 50 cc. Relation of gases. H: C02:: --: --. Relation of gases. H: CO2:: li:1-Results of special physiological tests: Indol tests--no fecal odor--slight positive test for indol. General Remarks: Contains enormous number of germs, but positive diagnosis impossible as conditions were same as in No. 42. Positive gas fermentation shows poor conditions. H. L. Russell, Consulting Bacteriologist. Potosi--Biological analysis, October 20, 1899. The following report is herewith submitted on a sample of well water received from Dr. T. B. Ennor of Potosi, Wis., labeled sample (c). Date of shipment; date of arrival, 10/16, 10 A. M.; condition on arrival, fair; temperature of water, 69 F.; number of bacteria per cc (cubic centimeter, which is approximately 20 drops) on nutrient gelatin grown at 65 F., innumerable; number of bacteria per cc able to liquefy gelatin, liquefied all plates in 30 hours; number of bacteria per cc when incubated at 100 F., 1,020, of which 50 were acidproducing germs. Results of fermentation tests: Lactose bouillon--glucose bouillon, very slight where 50 cc was used. Results of special physiological tests: ISTo fecal odor in glucose--free broth but slight positive test for indol. General Remarks: Biologically, this sample shows but a trace of fermentation although germ content is again very high. IT. L. Russell, Consulting Bacteriologist. Potosi--Biological analysis, October 20, 1899. The following report is herewith submitted on a sample of well washow more

Product details

  • Paperback | 94 pages
  • 189 x 246 x 5mm | 181g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 123691547X
  • 9781236915474