VETERINARY SCIENCE AND PRACTICE. 491 



place. For thin purpose apparent!}' healthy animals were selected and tested -with 

 tuberculin. If they failed to react they were inoculated with the tubercle bacillus 

 and tested at intervals afterwards-, in order to determine how soon they would react 

 to tul)erculin. One animal which gave a decided reaction when tested on October 9 

 subsecjuently failed to react, or reacted alternately. For 2 months it received large 

 quantities of tuberculin and entirely ceased to react. The animal was inoculated 

 with tubercle bacilli on February 6 and reacted to tuberculin 8 days after inoculation. 

 The animal was then treated with large doses of tuberculin without reaction. When 

 killed on May 22 no trace of tuberculous lesion was found except a casefied and inert 

 tubercle in a mesenteric gland. In other experiments it was found that in many 

 cases reaction to tuberculin did not occur until from 40 to 50 days after the animals 

 were inoculated with tuberculosis. In several cases which reacted decidedly on the 

 first test, a complete failure to react was noted if the test was repeated within a short 

 time. The authors believe that repeated injections of tuberculin may have some 

 curative effect, or may retard the progress of the disease to some extent, and that this 

 matter is largely influenced liy the individuality of each animal. A few animals 

 could not be inoculated with virulent tubercle bacilli, although they had not been 

 previously treated with tuberculin, and appeared to be entirely resistant to tuber- 

 culosis. The facts elicited with regard to reaction of animals to a second or later test 

 with tuberculin were so variable that no attempt was made to tabulate them. From 

 the numerous experiments the author concluded that with few exceptions tubercu- 

 losis may be recognized in a post-mortem examination of animals which give a decided 

 reaction to tuberculin, and that no such lesions are found in animals which fail to 

 react or react only slightly to the tulierculin test. 



Is the Bacillus tuberculosis of cattle permanently different from that of 

 man? J. Law {Rpi.Neio York State Deiif. Agr., 7 {1899), I, pp. 3 13-554). —The author 

 gives a general review of the literature of this subject, dealing especially with the 

 possibility of transmission of tuberculosis from man to animals and from animals to 

 man, and also with direct experiments in infecting animals with tubercle bacillus of 

 human origin. A general account is also given of the nature, value, and reliability 

 of tuberculin. 



Tuberculosis in calves, Rabus {Wchnschr. Thierhellk. u. Viehzucht, 45 {1901), 

 No. 9, pp. 97, 98). — A brief discussion of the literature of this subject, together with 

 notes on a case observed by the author which was apparently of prenatal origin. 

 The percentage of tuberculosis in calves in Bavaria, as shown by statistics based upon 

 several million calves, is from 0.02 to 0.05. 



Contribution to tuberculosis in the horse, F. Hendrickx {Ann. Med. Vet., 49 

 {1900), No. 10, pp. 575-55^).— Detailed description is given of the symptoms and 

 pathological lesions of 2 cases in horses. The disease is quite easily distinguished 

 from glanders. The lungs in both, cases were affected, and caseous tubercles were 

 found in the liver and kidneys. The spleen w-as somewhat enlarged and contained 

 pathological structures which were pr(jbably tubercles in the process of formation. 



Historical and bibliographical study on the use of raw meat in the treat- 

 ment of tuberculosis, C. Richet {Ann. Med. Vet., 49 {1900), No. 8, pp. 410-4^7).— 

 A critical review of the literature of the subject, with, numerous bibliographical 

 references. It is concluded from this study that the evidence for the value of raw 

 meat in the treatment of tuberculosis is very strong, and that raw meat or muscle 

 plasma is not only a nutritious food, but has also the effect of an antitoxic agent. 



Arrangements for inoculation against tick fever {Agr. Gnz. New South Wales, 

 12 {1901), No. 4, p. 497 ) .—^^hu-ii tlie cattle tick appears to be making only a slow 

 progress in its distribution from Brisbane as a center, the stock inspector has deferred 

 the general preventive inoculation of cattle. In order to be prepared, however, 

 for the sudden appearance of ticks among cattle outside of the infested area, arrange- 

 ments have been made to secure immune cattle from which blood may be obtained 

 for inoculation. 



