. Bacteriology in medicine and surgery. A practical manual for physicians, health officers, and students. Bacteriology. 624 APPENDIX. of tlie favus fungi in the stomach and intestine. On the scalp it first appears as a tiny sulphur-yellow disk or scutulum, depressed in the centre like a cup and pierced by a hair. This is the characteristic lesion. The cup-shape is attributed by Unna to growth at the sides proceeding more vigorously than at the centre. There is some difference of opinion as to whether there is only one or several varieties of favus fungus. It was suggested by Quincke that there
. Bacteriology in medicine and surgery. A practical manual for physicians, health officers, and students. Bacteriology. 624 APPENDIX. of tlie favus fungi in the stomach and intestine. On the scalp it first appears as a tiny sulphur-yellow disk or scutulum, depressed in the centre like a cup and pierced by a hair. This is the characteristic lesion. The cup-shape is attributed by Unna to growth at the sides proceeding more vigorously than at the centre. There is some difference of opinion as to whether there is only one or several varieties of favus fungus. It was suggested by Quincke that there are three dif- ferent species of favus fungus. Later investigations Fig. Five-months' old colony of favus on peptone maltose agar. Actual size. have apparently shown, however, that the achorion Schoenleinii is the only fungus of favus. The favus fungus is readily cultivated at the body- temperature, and also at room-temperature, in the or- dinary culture media, as agar, blood-serum, gelatin, bouillon, milk, infusion of malt, eggs, potato, etc. (Fig. 86). The growth develops slowly and shows a preference to grow beneath the surface of the medium— except on potato, upon which it develops on the surface in layers. The characteristic form of growth is that of moss-like projections from a central body. The color. 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 Park, William Hallock, 1863-1939; Guerard, Arthur Rose, 1851-. New York and Philadelphia, Lea Brothers & Co
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