Legislative Documents Volume 7, No. 45 download

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Legislative Documents Volume 7, No. 45 download

Legislative Documents Volume 7, No. 45 by New York Legislature

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Author: New York Legislature
Page Count: 218 pages
Published Date: 01 Mar 2012
Publisher: Rarebooksclub.com
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781130628012
Download Link: Legislative Documents Volume 7, No. 45
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 Excerpt: ...etc. It is this condition of affairs that has made the development of a second, fundamentally different, method of counting bacteria in milk doubly important. Microscopic methods of counting have now been so perfectedl that it is possible not only to secure data regarding the actual size of the clumps of bacteria in milk, but also to make comparative analyses of a series of milk samples both by the usual agar plate method and by direct microscopic examination. This permits us to study the accuracy of the counts in a manner not heretofore possible. Already extended scries of comparative analyses have been made and published (see Bulletins 373 and 439). The analyses mentioned have, however, been largely the work of a single analyst, and are subject to the "constant" and "personal" errors which are always possible where analyses are made by a single person. Some preliminary comparative counts by several analysts from different laboratories were made in the series of counts discussed by Conn; but these were preliminary in nature, and, because of the difficulties involved in continuing the work where the laboratories were so widely separated, the work was discontinued. For these reasons, the authors of the present paper in 1915 drew up a plan of investigation under which a series of samples of milk were to be analysed in each of two laboratories maintained by the State, which were fortunately situated within 50 miles of each other. One of these was the laboratory maintained by the New York Agricultural Experiment Station at Geneva and the other that maintained by the Department of Dairy Industry of the State College of Agriculture at Ithaca. The associates and assistants in 1 Breed R. S. and Brew, J. D. Counting bacteria by means of the micro...

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