Some yeast infection images:
Image from page 323 of “Pathological technique; a practical manual for workers in pathological histology and bacteriology” (1918)
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Title: Pathological technique; a practical manual for workers in pathological histology and bacteriology
Year: 1918 (1910s)
Authors: Mallory, Frank Burr, 1862-1941 Wright, James Homer, 1869-1928, joint author
Publisher: Philadelphia and London, W. B. Saunders company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress
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Text Appearing Before Image:
diarrheal and dysenteric discharges. Maycause general infection in human beings. With or withoutgeneral infection it may cause hemorrhagic and necrotic en-teritis, a form of pyocyaneous infection in human beings whichwe have repeatedly observed at autopsy. Instances of in-vasion of the body from wounds by the bacillus pyocyaneushave not been observed (Welch). Bacillus of Bubonic Plague.—Morphology.—In the 32f \. PATHOLOGICAL TECHNIQUE. tissues the organism occurs as a medium-sized short bacilluswith rounded /ends. In cultures its size and length varyand its median portion may be swollen so that an ovoidform is produced; it may grow in pairs and in chains,and it may occur as long, thread-like forms. Involutionforms of elliptical or round shape, and often of large size,sometimes resembling yeast-cells, are frequent in old cult-ures or in cultures on special media. These involutionforms are easily produced by cultivation on agar-agar con-taining 2y2 to 3^ per cent, of sodium chlorid.
Text Appearing After Image:
Fig. 80.— Bacillus of bubonic plague (Yersin). • Staining.—-The organism stains with the usual aniline dyes,and is decolorized by Grams method of staining. In thetissues it stains more deeply at its extremities than at itscentral portions, and it sometimes appears to possess a cap-sule. The polar staining may sometimes be brought outin cultures by weak staining solutions or by decolorizationby alcohol. It is not motile, and it does not form spores. • Gelatin Plates.—The colonies on the surface appear aftertwenty-four to forty-eight hours at 22° C. They are flat,rOund, and white or yellowish white in color. Under a lowmagnifying power the central portion of the colony is gran-ular, while the marginal portion is clear. The colonies donot spread over the surface of the medium. Gelatin Stab.—Growth all along the line of inoculation PATHOGENIC BACTERIA AND FUNGI. 32$ with the formation of a layer of growth at the surface of awhitish color. There is no liquefaction of the gelat
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