VETERINARY SCIENCE AND PRACTICE. 609 



Proceeding's of the thirteenth annual meeting of the Missouri State Dairy 

 Association, 1902 {Missouri State Bd. Agr. Mo. BaL, 2 {190-2), No.S^pp. 7,5, Jigs. 4).— 

 This fontains the addresses and discussions. Some of the topics treated were dairj-ing 

 in Missouri, the retail milk business, rations for dairy cows, silos and silage, butter 

 making as a profession, bitter milk, the literature of dairying, and the selection of 

 dairy cows. 



VETERINARY SCIENCE AND PRACTICE. 



The transference of bovine tuberculosis to man, R. Koch ( British Med. Jour., 

 1902, No. 2190, pp. 1885-1889). — This is a translation of an address delivered at the 

 Internaitional Conference on Tuberculosis in Berlin, October 25, 1902. In this 

 address the author discusses in a critical manner the 2 outbreaks and 28 individual 

 cases of tuberculosis in man which have been mentioned in the literature of the sub- 

 ject as being due to infection from eating meat or milk of tuberculous animals, or to 

 wound infection with tuberculous material of animal origin. In R. Koch's opinion 

 the proof of causal connection between the cases of human tuberculosis and infection 

 from animals is wanting in every case, and while it is not denied that individual cases 

 may arise in man from infection with milk of animal origin, it is argued that such 

 cases must be exceedingly rare, otherwise it is believed that more numerous 

 undoubted cases would be accessible. The author argues that if the meat and milk 

 of tuberculous animals were virulent or generally infectious toward man, numerous 

 outbreaks of extensive character should appear, on account of the fact that the 

 tuberculous milk and meat in any case would naturally be eaten by a number of 

 persons. Such outbreaks, however, have not been observed. In the case originally 

 reported by Ollivier and subsequently quoted at frequent intervals by various writers 

 on the : abject, the author calls attention to the fact that Ollivier subsequently 

 admitted his mistake in the original report and stated that the pupils who contracted 

 tuberculosis had not eaten the milk of the cow which was affected with tuberculosis 

 of the udder; the faculty of the institution, however, had eaten this milk and no 

 cases of tuberculosis develoi)ed among them. 



Are bovine and human tuberculosis identical or not? E. Klebs and Rievel 

 {Beut. Thierilrztl. Wchnschr., 10 {1902), No. 3, pp. 21-23).— The authors conclude from 

 their experiments on this question that tubercle bacilli of human origin, after having 

 been artificially cultured a long time, are capable of producing acute typical tubercu- 

 losis in calves. Tne tubercle bacilli of human origin are first exclusively confined to 

 the lymphatic glan '" in the neighborhood of the point of inoculation; later, how- 

 ever, the tuberculoi. alterations may extend over the peritoneum and other organs. 



Some experiments upon the immunization of cattle against tuberculosis, 

 L. Pearson and S. H. Gilliland {Philadelphia Med. Jour., 10 {190^), No. 22, pp. 

 842-848, figs. 4)- — In this article a summary account is given of experiments during 

 which it was found that the subcutaneous injection of tuberculin has the influence of 

 increasing the resistance of cows to tuberculous lung material given by way of the 

 mouth. The more important literature upon the subject of immunizing cattle against 

 tuberculosis is critically reviewed. This literature includes the publications of E. A. 

 de Schweinitz, J. McFadyean, and E. von Behring. 



Experiments with 2 young cattle showed that cattle may be refractory to large 

 quantities of human tubercle bacilli when injected into the blood. One of the 2 

 animals upon which these experiments were made exhibited considerable resistance 

 to a virulent culture of bovine tubercle bacilli. In March, 1902, a definite test was 

 made of the possibility of immunizing cattle to tuberculosis l)y repeated intravenous 

 inoculations of human tubercle bacilli not virulent for cattle. In these experiments 

 4 young cattle were used. They were tested with tuberculin and found to be free 

 from tuberculosis, after which 2 were \aceinated with human tubercle bacdli and 



