390 Diseases of the Genital Organs 



males. It is therefore impossible at present to make a re- 

 liable estimate of the frequency of its occurrence. Enough 

 study has been given the subject recently to show that 

 semino-cystitis is neither rare nor unimportant in breeding 

 bulls. 



Fig. 127 — Purulent Spermato- Vesiculitis. Bull. ( From same animal 



as Figs. 126 and 86). 



On the left is included a normal pelvic urethra, urinary bladder, 



and seminal bladder for comparison. 



/, /, Greatly enlarged vesiculae seminales; .?, 2, enlarged terminal portions 



of vasa deferentia ; ,'. urinary bladder ; /. pelvic urethra covered by 



Wilson's muscle and prostate gland : 5, body of prostate. 



The symptoms have not yet been clearly defined. In the 

 cases observed clinically, there was hesitancy in the ejacu- 

 lation of semen, and a markedly deficient volume of the 

 seminal fluid. Taking into account the present belief in 

 the function of the seminal vesicles, the symptoms thus far 



