Manual of Bacteriology for Practitioners And Students With Especial References
The book Manual of Bacteriology for Practitioners And Students With Especial References was written by author Samuel Leopold Schenk Here you can read free online of Manual of Bacteriology for Practitioners And Students With Especial References book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Manual of Bacteriology for Practitioners And Students With Especial References a good or bad book?
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To gain sonie preliminary information as to what micro-organisms are present, a few drops of the water to be examined are evaporated on a cover-glass, which is drawn several times through the gas flame to fix the dry residue and covered with one or two drops of a staining solution. In washing off the stain, the stream from the wash-bottle should not be directed on the actual deposit from the water. It is advisable that every examination by culture should be preceded by sedimentation, for which ...purpose Finkelnburg has contrived an apparatus consisting of a cylindrical vessel with a bottom capable of being lifted out. Water being allowed to drop in through an opening in the bottom which can be closed by a glass tap, the floating particles gather on the movable bottom of the glass, and in this way a de- position of the organised impurities can rapidly be obtained. Csokor's or Gartner's centrifugal machine serves this pur- pose still better. In order to isolate the bacilli of cholera and typhoid and other bacteria endowed with motility, Ali Cohen has brought forward a peculiar method depending on the chemotactic action of certain stimulating substances, especially of the juice of raw potatoes.
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