. Elements of applied microscopy. A text-book for beginners. Microscopy. 122 ELEMENTS OF APPLIED MICROSCOPY. of importance in the detection of admixture of its water with that from some other source. The great importance of the microscopical examination of drinking-water lies, however, in its application to the study of those organisms which produce tastes and odors in reservoirs. Such tastes and odors are in almost all cases due to the mul-. FiG. 47.—Trichina. (After Hager-Mez.) 50 diameters. tiplication of microscopic plants and animals belonging to the Algje and the Protozoa; and the study
. Elements of applied microscopy. A text-book for beginners. Microscopy. 122 ELEMENTS OF APPLIED MICROSCOPY. of importance in the detection of admixture of its water with that from some other source. The great importance of the microscopical examination of drinking-water lies, however, in its application to the study of those organisms which produce tastes and odors in reservoirs. Such tastes and odors are in almost all cases due to the mul-. FiG. 47.—Trichina. (After Hager-Mez.) 50 diameters. tiplication of microscopic plants and animals belonging to the Algje and the Protozoa; and the study and control of these organisms depends upon the systematic use of the microscope. A considerable concentration of the sample must, of course, precede the microscopical examination of drink- ing-water; and this is usually accomplished by filtration through a layer of fine* sand. The Sedgwick-R after method, in routine use by the State Board of Health and the Metropolitan Water Board of Massachusetts, the. 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 Winslow, C. -E. A. (Charles-Edward Amory), 1877-1957. New York, J. Wiley; London, Chapman & Hall
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