. A manual of bacteriology. Bacteriology. PATHOGENIC BACTERIA. 369 As a result of his research, Wright* comes to different ronclusions from many of those who have studied the ray-fungus. He regards the organism as essen- tially anaerobic; seldom found in external nature; probably present in the normal alimentary canal. He succeeded in obtaining club shapes in serum cultures, and in producing nodules by inoculation of animals. The bodies called spores by other observers are not to be regarded as spores. According to Wright's description, the organism represented by Fig. 89 would have to be rega
. A manual of bacteriology. Bacteriology. PATHOGENIC BACTERIA. 369 As a result of his research, Wright* comes to different ronclusions from many of those who have studied the ray-fungus. He regards the organism as essen- tially anaerobic; seldom found in external nature; probably present in the normal alimentary canal. He succeeded in obtaining club shapes in serum cultures, and in producing nodules by inoculation of animals. The bodies called spores by other observers are not to be regarded as spores. According to Wright's description, the organism represented by Fig. 89 would have to be regarded not as the true ray-fungus but as one of its saprophytic congeners. 'Besides the common actinomyces, there are numerous other ray-fungi, more or less closely related, and whose pathogenic properties are not fuUy deter- mined. Generally speaking, they appear to be essentially saprophytes, which. Fig. 94.—Actmomyces bovis, smear preparation from a pure culture, stained by Gram's method. (X 1000.) occasionally become parasitic and pathogenic under especially favorable con- ditions A number of species have been found in air, dust, etc., some of them chromoeenic. Wolff and Israel described an anaerobic species, pathogenic to man and animals. Madura disease, Madura foot, or mycetoma is a disease occurring in India (rarely elsewhere), affecting one of the extremities, character ized by sweUings, nodular deposits and abscesses. Some cases are certainly due to a member of the aetinomyces group, t Other branching organisms, some of them acid-poof, have been described *Wright. Journal oj Medical Research. XIII., p. 349. tCompare Wright. Journal Experimental Medicine. Vol. III., p. 421. 24. 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 Williams, Herbert Upham, 1866-; Bolton, Benjamin Meade, 1857-1929. Philadelp
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