VETERINARY SCIENCE AND PRACTICE. 99 



been remarkably uniform in indicating that tubercle bacilli may be and often are 

 present in the milk of cows which are mere reactors and which, on post-mortem 

 examination, show no recognizable tuberculous lesion. 



Considerable space is devoted to a review of the work done by this Department. 

 The author comes to the conclusion that tubercle bacilli are to be found in the milk 

 of merely reacting cows quite commonly and much more frequently than has usually 

 been assumed. Attention is therefore called to the great importance of preventing 

 the spread of tuberculosis through the agency of the milk of tuberculous cows. 



Investigations on bovine tuberculosis (Wisconsin Sta. I!/>t. 1903, pp. 250-255, 

 fig. J). — A brief review of the results obtained in the following investigations pre- 

 viously published by the Wisconsin Station: 



Tuberculosis and the Tuberculin Test (E. S. R., 6, p. 333) ; Efficiency of Tuberculin 

 as a Diagnostic Agent in Tuberculosis ( E. S. R., 8, p. 332) ; Infectiousness of Milk fr< »m 

 Tuberculous Cows (E. S. R., 8, p. 334) ; Relation of Separator Slime to Tuberculosis 

 in Hogs (E. S. R., 8, p. 334); Tuberculin Inoculations for 1896 (E. S. R., 9, p. 594); 

 Restricting Tuberculosis by Isolation (E. S. R., 9, p. 591) ; History of a Tuberculous 

 Herd of Cows, by H. L. Russell (E. S. R., 11, p. 986); Effect of Different Influences 

 on Normal Temperatures of Cattle (E. S. R., 12, p. 92), by H. L. Russell and V. H. 

 Bassett; Examination of Milk for Tubercle Bacilli (E. S. R., 12, p. 90), by V. H. Bas- 

 sett; Bovine Tuberculosis in Wisconsin (E. S. R., 13, p. 284), by H. L. Russell and 

 E. G. Hastings; Thermal Death Point of Tubercle Bacilli under Commercial Condi- 

 tions (E. S. R., 13, p. 83). 



The tuberculin reaction, Feistmantel (Centbl. Bakt. u. Par., 1. Abt., Orig., 36 

 (1904), No. 2, pp. 282-290). — Some investigators have argued that the tuberculin 

 reaction can not be considered as specific since tuberculous animals react to other 

 substances than tuberculin and also since tuberculin may cause a reaction in diseases 

 other than tuberculosis. Tuberculins from various sources were compared with the 

 toxins of other closely related species of bacteria. 



In order to declare positively for a reaction in any case the author required the 

 fulfillment of the following conditions: Elevation of temperature, 1.2°; typical tuber- 

 culin curve; and the production of a temperature above any observed before injec- 

 tion or during the first day after injection. The final results will be published in a 

 forthcoming article by the author. 



Antifebrin used in masking- the effects of tuberculin, A. Gregoire and 

 J. Hendkick (Bui. Agr. [Brussels], 20 (1904), No. 3, pp. 445, 446).— The authors 

 describe in considerable detail a technical method for detecting this fraud by an 

 examination of the urine. The drug may be demonstrated by means of the usual 

 tests for acetanilid. It was found that paramidophenol could be detected in a solu- 

 tion of 1:10,000,000. The same test proved serviceable in demonstrating salicylic 

 acid, which is also used occasionally in masking a tuberculin reaction. 



Tuberculosis in bogs, L. L. Lewis (Oklahoma Sta. Bui. 63, j)p. 8). — The milk of 

 tuberculous cows was fed to pigs in considerable quantities for a period of 2 

 months. The experiment showed that such milk contained tubercle bacilli and 

 was pathogenic for hogs, some of which died of generalized tuberculosis. 



The physical symptoms even in serious cases of tuberculosis in hogs were not very 

 marked. The infected hogs were tested with tuberculin for the purpose of learning 

 the value of this reagent in diagnosing tuberculosis in hogs. It was found that in 

 hogs which were not used to being handled, the mere taking of the temperature 

 caused an elevation of 1 to 2 degrees. In general, however, the results obtained 

 from the tuberculin test were thoroughly reliable. 



Anthrax in Wisconsin ( Wisconsin Sta. Rpt. 1903, pp. 256-258).— This is a sum- 

 mary of the following articles: Outbreak of Anthrax Traceable to Tannery Refuse, 

 by H: L. Russell, and Experiments on Treatment of Anthrax Hides with Formal- 

 dehyde Solutions, by E. G. Hastings (E. S. R., 13, p* 91). 



