. Bacteria in relation to plant diseases. Bacteriology; Plant diseases. ii6 BACTERIA IN RELATION TO PLANT DISEASES. where it is drawn, taking care, of conrse, in case of high magnification, to start one cross line from the outside and the other from the inside of the image of the lines. This method of recording magnifications is urged on all. It takes but a moment, does away with troublesome computations, and enables anyone at any time to deter- mine just what was the magnification. The magnification is determined, of course, 1))' dividing the apparent size by the actual portion of the scale s
. Bacteria in relation to plant diseases. Bacteriology; Plant diseases. ii6 BACTERIA IN RELATION TO PLANT DISEASES. where it is drawn, taking care, of conrse, in case of high magnification, to start one cross line from the outside and the other from the inside of the image of the lines. This method of recording magnifications is urged on all. It takes but a moment, does away with troublesome computations, and enables anyone at any time to deter- mine just what was the magnification. The magnification is determined, of course, 1))' dividing the apparent size by the actual portion of the scale shown. For. Fig. 103.* example, if the scale drawn on the paper is lo mm. long and represents mm. of the actual micrometer scale, then the magnification is X looo; if it represents the entire millimeter of the uiicrometer scale, the magnification is X lo. For fine weighings, Christian Becker's balances are very satisfactory. 'â Fig. 103.âPillsljiiry slide-Iioxes empty and full, made by Bauscli & Lomb, Rochester, N. Y. These boxes arc simple, inexpensive, and satisfactory, especially for serial 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 Smith, Erwin F. (Erwin Frink), 1854-1927. Washington, D. C. , Carnegie Institution of Washington
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