Abstracts of Bacteriology, Volumen4

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Williams and Wilkins., 1920
Includes: Scientific proceedings of the Society of American Bacteriologists.
 

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Página 124 - Normal fresh milk gives a grayish-blue color. The production of a lighter or darker color serves to awaken suspicion in regard to the normal character of the milk. The color is made lighter by acids, acid salts, formaldehyde, and also by heating above the usual point of pasteurization. The color becomes deeper blue in the case of milk from diseased udders-, watered milk, skimmed milk, and milk containing added alkaline salts. In the inspection of milk, a sample is taken for further detailed examination...
Página 341 - ... 3. All of the available evidence obtained from the use of fractions of the fatty acids of chaulmoogra oil indicates that the therapeutic action is due to one or more of the fatty acids of the oil or to some as yet unidentified substance associated therewith. The various methods of fractionation heretofore employed have failed to demonstrate the active agent.
Página 152 - That although tetanus toxin ascends to the central nervous system by way of the axis cylinders of the nerves, it also to a very great extent passes up the nerves to the cord by way of the perineural lymphatics.
Página 25 - B. arsenreducens, and other resistant members probably exist. Resistance to arsenic is therefore not a rigorous group characteristic, although it is probably as characteristic as any other biochemical feature, and might find a place in diagnostic bacteriology. Apart from the members of the putidum group five highly resistant bacteria (ie, non-spprulating rod forms) are described but not named.
Página 149 - Three definite morphological types of the spotted fever parasite can be recognized : (1) An extra-nuclear bacillus-like form without chromatoid granules, relatively large and only present in ticks during the initial multiplication of the parasites; (2) a relatively small rod-shaped form with chromatoid granules, probably the same form seen within nuclei in sections of ticks, and rarely in smooth muscle cells in the blood vessels of mammals; and (3) a relatively large lanceolate paired form present...
Página 143 - Section 1. All types of drinking fountains with vertical jets are to be condemned. 2. Most types of drinking fountains with slanting jets are to be condemned. 3. To be sanitary, drinking fountains should conform to the following specifications : a. The jets shall be slanting.
Página 111 - ... the repelling action of the ion with the same sign of charge as that of water increases more rapidly with a further increase in concentration than the attractive action of the ion with the opposite charge upon the water.

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