. 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. 556 DESCRIPTION OF SPECIES. diam., singly, in pairs, and in masses. They can be cultivated at 37° C. The colonies on agar are milk- white and prominent. Later, off- shoots occur from the margin, producing a rosetted appearance. Inoculated in the depth of gelatine the cocci form clubbed or stalactitic out-growths from the filament which develops in the track of the needle. On the surface of agar a creamy layer is formed
. 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. 556 DESCRIPTION OF SPECIES. diam., singly, in pairs, and in masses. They can be cultivated at 37° C. The colonies on agar are milk- white and prominent. Later, off- shoots occur from the margin, producing a rosetted appearance. Inoculated in the depth of gelatine the cocci form clubbed or stalactitic out-growths from the filament which develops in the track of the needle. On the surface of agar a creamy layer is formed with similar ofE- shoots. Injected into the lungs of guinea- pigs they are said to produce broncho-pneumonia. They were obtained from the bullae in acute pemphigus. Micrococcus in pneumonia (Manfredi).âOval cocci â & to 1 /j. in width, 1 to 1'5 fi in length, singly, in pairs, and short chains. Colonies on gelatine are circular, whitish, and later spread out and become bluish by transmitted light, and of a pearly lustre by reflected light. Inoculated in the depth of gela- tine there is a limited growth along the track of the needle. On blood serum they form a shining, granular, faintly greenish- yellow layer. They also can be cultivated on potato and in broth. They are pathogenic in dogs, rabbits, guinea-pigs, mice and birds. Birds die in a few days ; mammals in from one to three weeks. After death new growths composed of granulation tissue are found in the internal organs, varying in size from a millet seed to a pea. They were obtained from the sputum of pneumonia complicating measles. Micrococcus in progressive abscess formation in rabbits (Koch).--Cocci only about -15 /^ in diam., principally in thick zooglcsa. The disease was induced by the in- jection into rabbits of decomposing blood. At the place of injection a spreading abscess formed, which was fatal to the animal in about twelve days. No bacteria were observed in the blood, but in the walls of the abscess thic
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Keywords: ., bookcentury1800, bookdecade1890, bookpublisherphila, bookyear1897
