. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. TUBERCULOSIS. 395 one of the posterior teats. The rabbit placed in a separate hutch, and death from general tuberculosis occurred ninety-two days after inoculation. The diaphragm and mesentery were studded with tubercles the size of a pin's head. The kidneys superficially showed whitish rounded nodules projecting above the surface. These were found on section to be continuous, with wedge-shaped deposits in the sub-
. A text-book of bacteriology, including the etiology and prevention of infective diseases and a short account of yeasts, and moulds, haematazoa, and psorosperms. Bacteriology. TUBERCULOSIS. 395 one of the posterior teats. The rabbit placed in a separate hutch, and death from general tuberculosis occurred ninety-two days after inoculation. The diaphragm and mesentery were studded with tubercles the size of a pin's head. The kidneys superficially showed whitish rounded nodules projecting above the surface. These were found on section to be continuous, with wedge-shaped deposits in the sub- stance of the kidney. The lungs presented a very striking appear- ance, being, in short, a mass of tubercular deposit; and the bronchial and tracheal glands were similarly affected. In sections of the kidney and lung the bacilli were present, but they were distributed irregularly; in one part of a section it was difficult to detect a single bacillus, in other parts they were present in large numbers. The milk from the two cows, previously to their coming under observation, had been mixed with the general supply of a dairy. There is indeed ample evidence that, both in this and in other countries, the milk of tuberculous animals finds its way into the market. The question which naturally arises is the possi- bility of any manifestation of tuber- culosis in man, arising from the consumption of unboiled milk con- taining tubercle bacilli. We must admit that there is no direct evidence of the transmission of tuberculosis by milk from cow to man; but this may arise from the difficulty in tracing such a source of infection, owing to the long time which elapses before symptoms manifest themselves in man. Yet, if milk be a source of infection, we should naturally expect that primary tuberculosis of the intestine would be by no means an uncommon manifestation of the disease; and this in the adult is not in accordance with clinical experience. Such an argument would tend to contra-indica
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