This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...water or steam at 100 they live from two to five minutes, occasionally even from seven to twelve minutes. The varying resistance of different anthrax spores (v. Esmarch: Z. H., V., p. 67) seems to be partly a race peculiarity. It is very probable, moreover, that the nutrient medium, the temperature at the formation of ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...water or steam at 100 they live from two to five minutes, occasionally even from seven to twelve minutes. The varying resistance of different anthrax spores (v. Esmarch: Z. H., V., p. 67) seems to be partly a race peculiarity. It is very probable, moreover, that the nutrient medium, the temperature at the formation of the spores, the degree of maturity, etc., also exert an influence upon the resistance. Careful investigations on this subject are almost entirely lacking, but Percy Frankland has shown that spores formed at 20 are more resistant to light than those formed at incubation temperature (C. B., XV., p. 110). According to an observation of v. Esmarch the virulence of anthrax spores seems to be lost, in the course of time, before their power of germination. f Dry garden earth containing the spores of malignant oedema preserved the latter excellently in my laboratory for four years. On the other hand, tetanus spores which were dried on threads and kept in the room had perished at the end of three days; they were still alive on the second day. The resistance is tested by simply hanging in the steam chamber little tulle bags containing fragments or bits of glass upon which anthrax spores have been dried. From minute to minute a bag is removed and the bits of glass placed upon an agar plate which is kept at incubating temperature. Anthrax spores are obtained by careful removal of sporulating agar streak cultures, and warming the emulsion, prepared with little water, to 70 for five minutes. The varying resistance of apparently identical anthrax spores possesses great practical importance: (1) in disinfection tests which may be made only with spores of known resistance; (2) in differential diagnosis, because it shows that we must be on our guard against cre...
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Add this copy of Atlas and Essentials of Bacteriology to cart. $61.07, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
