Tuberculosis. 493 



panied, it may be, by colic and tympany. There is a tendency 

 to formation of pea or nut-like nodes under the skin of the flank, 

 and Kleinpaul claims that the tubercles or^ vegetations on the 

 rumen can be felt by manipulation of the left flank. Clearer 

 evidence can often be had by rectal exploration, the tubercles 

 and enlarged glands being felt on the rumen, in the knotted 

 mesentery and in the sublumbar and subsacral region. 



In case of uterine tuberculosis, the nymphomania may be sup- 

 plemented by a purulent discharge, and rectal exploration may 

 detect the tubercles on its surface, in the broad ligaments or even 

 in the enlarged ovaries. 



Great f oetor of the faeces may indicate ulceration of the mucosa, 

 indigestion or impaired hepatic function. 



For a great length of time the disease may be virtually con- 

 fined to the mesenteric or portal glands, or even to the spleen, 

 while the animal enjoys fairly good health. Again, in some in- 

 stances, the subject may be fat and sleek, though the rumen, 

 omentum or mesentery is to a large extent literally covered with 

 tuberculous vegetations. The tuberculization of the intestines, 

 mesenteric glands, liver or pancreas interferes far more with the 

 general health than does even extensive peritoneal tuberculosis. 



As the case advances it tends to generalization and winds up 

 with the general symptoms predicated above of pulmonary tuber- 

 culosis. 



Genital Tuberculosis in the bull is associated with nodular 

 swelling of the testicle, epididymus or cord, hydrocele, and ex- 

 ceptionally tubercle on the penis, or in the prostatic sac. 



Mammary Tuberculosis. This may be primary and circum- 

 scribed under direct infection through a trauma or by the milk 

 ducts, but more coinmonly it is secondary to generalized tubercu- 

 losis. It may be a rather firm, uniform, painless swelling of one 

 or two quarters (usually hind ones) without at first serious inter- 

 ference with milk secretion. As the disease advances, the follicles 

 and ducts being invaded, an irregular knotted condition is de- 

 veloped, the milk becomes pale, watery, semi -coagulated and 

 filled with bacilli, and the climax is reached in a densely indur- 

 ated condition of the gland. From the first the mammary lymph 

 glands, behind and it may be in front of the organ, become 



