. Pathological technique; a practical manual for workers in pathological histology and bacteriology. Fig. 85.—Bacillus of anthrax : gelatin stab-culture seven days old (Gunther). Blood-serum.—Irregularly rounded colonies, several milli-meters in diameter after twenty-four hours in the colonies are grayish, finely granular, and have the ap- 330 PATHOLOGICAL TECHNIQUE. pearance of being made up of a dense network of delicatefibrillar. The blood-serum is slowly liquefied. Gelatin Stab.—Growth along the line of stab, with radiat-ing filaments extending laterally into the gelatin, whi
. Pathological technique; a practical manual for workers in pathological histology and bacteriology. Fig. 85.—Bacillus of anthrax : gelatin stab-culture seven days old (Gunther). Blood-serum.—Irregularly rounded colonies, several milli-meters in diameter after twenty-four hours in the colonies are grayish, finely granular, and have the ap- 330 PATHOLOGICAL TECHNIQUE. pearance of being made up of a dense network of delicatefibrillar. The blood-serum is slowly liquefied. Gelatin Stab.—Growth along the line of stab, with radiat-ing filaments extending laterally into the gelatin, which isslowly liquefied in funnel form (Fig. 85). Bouillon.—Growth in the form of cotton-like flakes andfilamentous masses. No clouding of the medium. Agar-agar.—Matted network of translucent filaments. / / Fig. 86.—Bacillus of an-thrax; cover-slip prepara-tion from vesicle. Stainedby W. H. Smiths method ;X 1800 (W. H. Smith;photo, by L. S. Brown).. Fig. 87.—Colony of bacillus of anthrax,slightly magnified (Fliigge). Under a lower magnifying power the growth is seen to bemade up of twisted and contorted masses of filaments, giv-ing the appearance of curled hair (Fig. 87). Potato.—Grayish-white, rather thick, dry layer, having theappearance of frosted glass. Occurrence.—In malignant pustules, wool-sorters disease,and intestinal anthrax. Found in the blood of animals deadof anthrax. In man the infection is usually localized atfirst at the point of inoculation, either on the skin or on themucous membrane of the air-passages or intestinal , a general invasion of the blood may occur and a fatalsepticemia result. The organism or its spores may be pres-ent in wool or hides, and infection may take place from —The bacilli may be found by the cover-glass PATHOGENIC BACTERIA AND FUNGI. 331 examination of the contents of the small blebs and bacillus of anthrax may be identified by its morpholog
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