. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. clinically suspected to betuberculosis. Treatment.—^Recently homologous vaccines have been tried incertain cases, but it is yet too soon to determine with what result. Hihli()(;k.\[>hv. Foulerton. The Strepotrichoses and Tuberculcsos, The Lancot, , ciwviii.,, 62G and 709. Musgravc and Clegg. Phila. .Jour. Sci., iii., 1007, 2, 477. Wright. Jour. lOxp. Mod., ISKS, iii., 421, and the .Jouin. ol Mvi\. Ri-s, UK).), \!», and Modern Medicine, 1!»()7.
. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. clinically suspected to betuberculosis. Treatment.—^Recently homologous vaccines have been tried incertain cases, but it is yet too soon to determine with what result. Hihli()(;k.\[>hv. Foulerton. The Strepotrichoses and Tuberculcsos, The Lancot, , ciwviii.,, 62G and 709. Musgravc and Clegg. Phila. .Jour. Sci., iii., 1007, 2, 477. Wright. Jour. lOxp. Mod., ISKS, iii., 421, and the .Jouin. ol Mvi\. Ri-s, UK).), \!», and Modern Medicine, 1!»()7. i, :i27. CHAPTER XXXVI. THE PATHOGENIC MOULDS (HYPHOMYCETES, EUMYCETES) ANDYEASTS (BLASTOMYCETES)—DISEASES DUE TO MICRO-ORGANISMS NOT YET IDENTIFIED. THE HYPHOMYCETES. ^The majority of the moulds are not pathogenic and interest us merelyas organisms which are apt to infect our bacteriologic media. Someare, however, true parasites, and produce a number of rather commondiseases; for example, ringworm, favus, thrush, and pityriasis of the commoner moulds have also been reported from time to Fig. 153. Chlamydomucor racemosus: 1, branched hypha carrying sporangia; 2, cross-section of sporan-gium highly magnified showing (a) sporangium carrier; (6) columella, and (c) spores; 3 and 4, chlam-ydospore building; 5, developing chlamydospores and sporangium (e); 6 and 7, branching; 8, sprout-ing spores. (After Brefeld.) time as present in pathologic conditions in man as well as in the loweranimals. Many varieties have been found in plant diseases, andothers indirectly may be a source of danger to man. Indeed, whenthey form poisonous substances, as in the infection of grain by clavicepspurpurea (ergot poisoning), they are distinctly dangerous. The relation of the moulds to the bacteria is shown on p. 458. Likethe higher bacteria, these organisms grow in filaments, but the majority 472 PATHOGENIC MOULDS AND YEASTS. 473 of them show more complicated structure in poss
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