162 MASTITIS OF THE COW 



The milk sample was of normal appearance and of a 

 grayish-white color. The sediment consisted of a large 

 quantity of yellow pus which contained a moderate number 

 of Gram positive streptococci arranged as diplococci. 



C. REVIEW OF A DESCRIPTION BY H. WELIN, VETERINARIAN AT 



STORA HOF 



Contagious mastitis was present in a cow stable for three 

 years, which affected all the cows. The animals manifested 

 a sudden severe swelling and hardness of the udder with 

 purulent milk or a slight swelling of the udder with some- 

 what normal viscid or flocculent milk. In addition these 

 latter cases often showed swollen and painful tarsal joints, 

 due to metastatic arthritis. One case died, but was not 

 autopsied. In the same stable two similar cases developed. 

 The diseased cows showed fever and weakness, swelling of 

 the udder, together with swollen, painful joints. The 

 animals could scarcely stand, and the quantity of milk was 

 decreased. 



The milk sample submitted was nearly normal in ap- 

 pearance. The sediment consisted of a moderate quantity 

 of whitish-yellow pus, containing many streptococci in short 

 chains. 



II. Contagious Udder- pyobacillosis 



REVIEW OF A description BY K. KUHLMAN, VETERINARIAN 

 AT LANGHUNDRA 



In a cow stable containing approximately sixty cows, 

 six developed contagious mastitis, by degrees, in one month. 

 Usually only one quarter was affected, sometimes two. The 

 diseased quarter was swollen and hard, but not painful. 

 The milk suddenly became flocculent, then purulent, thick 

 and stinking. 



The affected cows were isolated and treated with boric 



