. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. DESCRIPTION OF SPECIES. 567 to 12 li long, 1-5 to 2-6 /* thick. They are colourless, but the con- tents include strongly refractive sulphur granules. Also spirals 6 to 75 fi in height, which are actively â motile. They were found in brackish water. Spirillum mbrum (Esmarck). âCurved rods, spirilla and spiro- chetsB. They are actively motile. The growth on artificial media is extremely slow. Inoculated in the depth of ge
. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. DESCRIPTION OF SPECIES. 567 to 12 li long, 1-5 to 2-6 /* thick. They are colourless, but the con- tents include strongly refractive sulphur granules. Also spirals 6 to 75 fi in height, which are actively â motile. They were found in brackish water. Spirillum mbrum (Esmarck). âCurved rods, spirilla and spiro- chetsB. They are actively motile. The growth on artificial media is extremely slow. Inoculated in the depth of gela- tine they grow along the track of the needle, forming a filament of a wine-red colour, without causing liquefaction ; and on the free sur- face the growth is colourless. In broth long spirillar threads are formed. They were isolated from the putrid tissues of a mouse. Spirilliim rufum (Perty).â Filaments from 8 to 16 /i in length, with 1^ to 4 screiv curves ; non- segmented ; chiefly motile ; tinged with red. They form rose or dark red spots on the sides of wells. Spirillum sanguineum (Cohn). âThreads 3 /i and more in thick- ness, with 2 to 2^ spirals, each 9 to 12 /x high. The ends are provided with flagella. Their colour is due to the presence of reddish granules contained in the cells. They were observed in brackish water containing putrefying sub- stances. (Vide Beggiatoa roseo- persiciua.) Spirillum sapropMles.â(I.) Curved rods with pointed ends, 6 fi in width, 3 ^ in length ; spirUla, spirilliform filaments, and involu- tion forms. Colonies yellowish or greenish- yellow. Inoculated in the depth of gela- tine a white growth forms in the track of the needle, later becoming yellowish ; and on the free surface there is a white growth, and beyond this a transparent film spreads over the jelly. On agar the growthi s creamy, and the jelly clouded beneath it. On potato the growth is slimy and yellowish or dark-brown in colour. They were obtained from sewage. Fia. 226.âC
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1897
