242 



CANINE AND FELINE SURGERY 



In one instance the author removed eleven calculi at one urethrotomy 

 operation, the patient being a St. Bernard dog whose owner had un- 

 fortunately allowed the case to progress so far before surgical aid was 

 called in that the extremity of the penis was gangrenous. 



On each of two other occasions the author counted more than fifty 

 small calculi in the urethra and bladder. 



Fig. 157. — Usual Position of Incision in Urethrotomy, with 

 Two Calculi in situ. 



On account of the short and comparativel}' elastic urethra 

 of the female, it is not common for calculi to lodge there, 

 but occasionalh' such cases are met ^\■ith. Gray-' has re- 

 corded one instance in which eight were discovered to be 

 present in the urethra of an aged female terrier. It ma^' occur 

 at almost anj' age, but is more common in the adult or aged 



' Journal of Comparative Pathology and TJierapeutics, \o\. x., p. 88. 



