. Laboratory work in bacteriology. Bacteriology. GELATIN AND POTATO MEDIA. 179 a maximum flow the temperature in the inner compartment will be the minimum attainable. In this laboratory the temperature of the water during summer, as it comes from the ground, is 14^15°. This represents, then the lowest constant temperature attainable. By diminishing the flow of the water, heat is absorbed, and a higher temperature can be obtained. The inner compartment can thus be maintained at 18°, 20° or 22°. In the apparatus, as actually used, the flow is such that a temperature of 18-20° is maintained throu
. Laboratory work in bacteriology. Bacteriology. GELATIN AND POTATO MEDIA. 179 a maximum flow the temperature in the inner compartment will be the minimum attainable. In this laboratory the temperature of the water during summer, as it comes from the ground, is 14^15°. This represents, then the lowest constant temperature attainable. By diminishing the flow of the water, heat is absorbed, and a higher temperature can be obtained. The inner compartment can thus be maintained at 18°, 20° or 22°. In the apparatus, as actually used, the flow is such that a temperature of 18-20° is maintained throughout the summer months. It is well to keep inside of the apparatus a. Kappeler maximum and minimum Fig. 33. The author's constant, low temperature apparatus. Laboratory work.—The student will make plate cultures of the Bacillus prodigiosus and of Bacillus Indicus. The potato cultures made heretofore will supply the material for inoculation. Modified Gelatin Plate Cultures. The original plate method of Koch, as described on p. 172, has been subjected to several modifications, some of which may be considered as decided improvements. The iron box, plates, benches, moist-chambers and levelling- ap-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Novy, Frederick George, 1864- . Ann Arbor [Mich. ] G. Wahr
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