. Milk. Milk. Fig. 186.—^Warm box of water-bath, kept at 45° C, used to keep the little plates warm while the agar is being spread. (Frost, in Jour. Amer. Med. Assoc, vol. 66, 1916.) Since quick results are under some conditions desirable, at- tention has recently been given to bacterial enumeration by direct microscopic examination. This is really a revival of the first. Fig. 187.—Incubating cabinet. Little plates are kept moist during incubation. Cabinet is put in incubator. (Frost, in Jour. Amer. Med. Assoc, vol. 66, 1916.) attempts made to count bacteria. Before the plate method was evolve
. Milk. Milk. Fig. 186.—^Warm box of water-bath, kept at 45° C, used to keep the little plates warm while the agar is being spread. (Frost, in Jour. Amer. Med. Assoc, vol. 66, 1916.) Since quick results are under some conditions desirable, at- tention has recently been given to bacterial enumeration by direct microscopic examination. This is really a revival of the first. Fig. 187.—Incubating cabinet. Little plates are kept moist during incubation. Cabinet is put in incubator. (Frost, in Jour. Amer. Med. Assoc, vol. 66, 1916.) attempts made to count bacteria. Before the plate method was evolved numbers were estimated by direct observation. A micro- scopic method for enumerating bacteria in sewage was devised by Winslow in 1905, while Slack was the first to apply the method. 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 Heinemann, Paul Gustav. Philadelphia and London, W. B. Saunders Company
Size: 1706px × 1464px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorheineman, bookcentury1900, bookdecade1910, bookyear1919
