. 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. PNEUMONIA. 237 The injection of a minute quantity (-2 cc.) of a virulent culture subcutaneously proves fatal to mice and rabbits in from twenty- four to forty-eight hours. Immediately afterwards there is a rise of temperature of 2° or 3° C, later it falls, and just before death it is several degrees below normal. After death, the post-mortem appearances of septicaemia are observed, in addition to diffuse inflammatory oe
. 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. PNEUMONIA. 237 The injection of a minute quantity (-2 cc.) of a virulent culture subcutaneously proves fatal to mice and rabbits in from twenty- four to forty-eight hours. Immediately afterwards there is a rise of temperature of 2° or 3° C, later it falls, and just before death it is several degrees below normal. After death, the post-mortem appearances of septicaemia are observed, in addition to diffuse inflammatory oedema extending in all directions from the point of injection. The subcutaneous connective tissue contains sanguineous serum and micrococci in abundance. The liver and spleen are some-. FiG. 117.—Colonies of Steknbehg's Miceococcus. Agar plate-cultivation, after 24 hours, x 100 (Feankel and Pfeiffee). times dark and engorged, and blood from the heart and internal organs teems with mici'ococci. There is no indication of pneumonia after subcutaneous inocula- tion, but intra-pulmonary injections produce fibrinous pneumonia, often fatal (Talamon, Gamaleia). The result is usually fatal in rabbits .ind sheep, but dogs, as a rule, recover. Injection of cultures into the trachea of rabbits is said to induce typjcal pneumoiik. (Monti). ;flHli Sternberg concludes that this micrococcus is the cause of acute infectious pneumonia, but the micrococcus is undoubtedly associated with widely different pathological processes, and the possibility of its being a saprophyte, which finds in pneumonia a suitable soil for its development, must not be Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Crookshank, Edgar M. (Edgar March), 1858-1928. Philadelphia, W. B. Saunders
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