. 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. 571 to, if not identical with, Strepto- coccus pyogenes bovis(Crookshank). Streptococcus in progressive tissue necrosis in mice.âKoch produced a disease in mice by sub- cutaneous injection of putrid blood. In tissue sections a chain coccus was found which was similar to Streptococcus Jig. 229.âStkeptococcus in Pro- GKESsivE Tissue Necrosis in Mice. a. Necrotic cartilage cells, and (6)
. 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. 571 to, if not identical with, Strepto- coccus pyogenes bovis(Crookshank). Streptococcus in progressive tissue necrosis in mice.âKoch produced a disease in mice by sub- cutaneous injection of putrid blood. In tissue sections a chain coccus was found which was similar to Streptococcus Jig. 229.âStkeptococcus in Pro- GKESsivE Tissue Necrosis in Mice. a. Necrotic cartilage cells, and (6) chains in masses; o, isolated chains. (Koch.) Streptococcus in Strangles (Sohutz).âCocci forming long â chains, which, it is said, do not grow on nutrient gelatine or agar, but form a transparent iridescent cul- ture on blood serum. Cultures in hrpth produced the disease in horses and mice. Rabbits, guinea-pigs, and pigeons are not affected. ' Strangles is a disease of the horse, associated with suppuration of the glands of the head and neck, prin- -cipally in the sub-maxillary, sub- parotideal, and retro-pharyngeal regions. Schutz found that the pus contains streptococci and produces a fatal disease in mice. Streptococcus liquefaciens (Sternberg).âSpherical and oval cocci, -4 to -6 fi in diam., singly, in pairs and short chains. Inoculated in the depth of gela- tine liquefaction occurs rapidly in the track of the needle, and in a week the gelatine is completely liquefied, shghtly opalescent, and a scanty deposit forms at the bottom of the tube. In the depth of agar a filament is formed composed of closely- crowded colonies. On potato a thin and limited dry white layer is formed along the line of inoculation in four to five days. They are non-pathogenic. They were isolated from the liver and intestines of fatal cases of yellow fever. Streptococcus mirahilis (Ros- coe and Lunt).âCocci 4 /i in diam., singly, and in long chains. The growth on nutrient media is very scanty. I
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