. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. Unstained spores in slightly distendedbacilli. (The spores are the light ovalspaces in the heavily stained bacilli.) Unstained spores in distended ends ofbacilli. than is possible for them to do in the growing or vegetative is true that in all non-spore bearing cultures a certain proportion ofthe bacteria are more resistant than the average. No marked differ-ence in protoplasm, however, has been noted in them other than theability to stain more intensely


. Pathogenic micro-organisms, including bacteria and Protozoa; a practical manual for students, physicians and health officers. Unstained spores in slightly distendedbacilli. (The spores are the light ovalspaces in the heavily stained bacilli.) Unstained spores in distended ends ofbacilli. than is possible for them to do in the growing or vegetative is true that in all non-spore bearing cultures a certain proportion ofthe bacteria are more resistant than the average. No marked differ-ence in protoplasm, however, has been noted in them other than theability to stain more intensely and sometimes to show strong meta-chromatic, areas. The difference between these and the less resistantforms is not great. Some have believed that this resistance is due tocertain bodies called arthrosfores, which are abnormally large cells with,usually, a thickened cell wall and increased staining properties, formedas a rule in old cultures. Fullerton and others have described similarforms in some of the higher bacteria and consider them spores. Seenocardia (streptothrix.) The true spores of the lower bacteria aredefinit


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