96 MASTITIS OF THE COW 



of this kind. According to reports, the udder of the cow 

 had been hooked, inducing a wound. The wound gave rise 

 to a fistula. A number of tubercules were produced in the 

 walls of the fistula and adjacent udder-tissue which were 

 very similar in character. 



Secondary or Embolic Udder-tuberculosis. — This type, 

 as before stated, is the most common and constitutes ap- 

 proximately 90 per cent, of all cases. 



In 115 cases of udder- tuberculosis with synchronous 

 lung-tuberculosis, that is in 115 cases which were exclusively 

 of the embolic type of udder-tuberculosis, the condition is 

 designated in the different quarters in the following 

 manner: 



A. In one quarter : 



In left posterior quarter. . . 28 udders, i.e., 23 per cent, of cases 

 In left anterior quarter. ... 5 udders, i.e„ 5 per cent, of cases 

 In right posterior quarter. 16 udders, i.e., 14 per cent, of cases 

 In right anterior quarter . . 5 udders, t.^., 5 per cent, of cases 



Summary 54 udders, i.e., 47 per cent, of cases 



B. In two quarters: 



In both posterior quarters. 13 udders, i.e., 11 per cent, of cases 



In left posterior and ante- 

 rior quarters 6 udders, i.e., 5 per cent, of cases 



In right posterior and an- 

 terior quarters 13 udders, i.e., 11 per cent, of cases 



In left posterior and right 



anterior quarters 2 udders, i.e., 2 per cent, of cases 



In right posterior and left 



anterior quarters 4 udders, i.e., 4 per cent, of cases 



Summary 38 udders, i.e., 33 per cent, of cases 



