SOURCES OF INFECTION IK THE STABLE. 49 



cnlosis, but, to make up for it, is the more contagious for 

 cows. As in case of tuberculosis it is caused by bacteria, 

 and has frequently been the cause of large losses. We 

 may here only recall the great damage which it caused 

 in Holstein, 1873-78, where, e.g., at the estate " Stendorf " 

 the whole herd of 200 milch-cows was attacked. As an 

 example of the extremely contagious nature of the inflam- 

 mation of the udder, the following may be cited : During 

 the epidemic mentioned, the dairyman at Stendorf was 

 once called to a remote farm where inflammation of the 

 udder had never yet appeared, in order to assist in a hard 

 parturition case of a cow. Six days after his visit the first 

 case of inflammation of the udder was observed at the 

 latter place, and before long six of the nine cows on the 

 farm were attacked. The dairyman had doubtless brought 

 the bacterium causing the inflammation to this farm. 

 Milk from cows attacked by this disease may be recog- 



tuberculosis is to human life. In banishing the disease from the 

 cow stables we banish one of the causes of its spreading among the 

 human race." 



The following publications contain the main contributions to 

 our knowledge of tuberculosis in cattle in America : 



Mass. (Hatch) Experiment Station Bulletin No. 8, April, 1890. 



Maine Experiment Station Report 1890, pp. 59-64. 



Pennsylvania Experiment Station Bulletin No. 31, Oct. 1892. 



Virginia Experiment Station Bulletin No. 26, March 1893. 



Ottawa (Canada) Central Experimental Farm Bulletin No. 20. 



Cornell Experiment Station Bulletin No. 65, April, 1894. 



Wisconsin Experiment Station Bulletin No. 40, July, 1894. 



Report on Tuberculosis in Ontario (Bryce), Toronto, 1894. 



Veterinary Magazine, 1894, p, 12. 



Also, Annual Reports of Bureau of Animal Industry, U. S. Dept. 

 of Agriculture, Washington, D. C. W. 



