. Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten. Bacteriology; Parasitology; Communicable diseases; Medical microbiology; Bacteriology; Communicable Diseases; Microbiology; Parasitology. Debono, On some anaerobical bacteria of the normal human intestine. 233 It thrives well both in piain and in sugar broth, producing a uni- form turbidity and a large quantity of indol. The cultures have a very nasty sniell which recalls that of the intestine on P. M. examination, due no doubt to the production of valerianic acid and similar bodies. It acts upon milk, subsequently pre
. Centralblatt für Bakteriologie, Parasitenkunde und Infektionskrankheiten. Bacteriology; Parasitology; Communicable diseases; Medical microbiology; Bacteriology; Communicable Diseases; Microbiology; Parasitology. Debono, On some anaerobical bacteria of the normal human intestine. 233 It thrives well both in piain and in sugar broth, producing a uni- form turbidity and a large quantity of indol. The cultures have a very nasty sniell which recalls that of the intestine on P. M. examination, due no doubt to the production of valerianic acid and similar bodies. It acts upon milk, subsequently precipitating the casein, and render- ing the milk alkaline, leaving a yellowish sligthly opalescent super- natant serum. It ferments glucose and lactose with production of acid and gas in small quantity, but does not act upon Saccharose or dulcite. The foul smelling gases seem to be produced not from its actiou on sugars but on peptones for the odour is equally well marked in sugar-free media. This organism closely approaches the Bacillus III of Rodella, it differs from this species, however. in the shape of the colonies and in its action upon milk; moreover, the rods are thicker. It also ditfers from the varieties of the Bacillus of Rodella described but Tis- sier; in fact the variety described byTissier does not produce Indol, while the Bacillus described above produces this substance in large quantities. Bacillus tortuosus. From faeces we have obtained auother bacillus, having the following morphological and biological characters. In cultures this organisms appears as straight rods with rounded ends which vary slightly in size; usually they are about the size of the Diphtheria bacillus; sometimes they seem to assume a diphtheroid disposition and long chains are common, especially in agar and broth culture. It does not form spores and its vitality is limited. It is not motile but retains the Gram stain. This bacillus is rather difficult to cultivate, it is a strict anaerobe; i
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