168 THE DISEASES OP THE DOG. 



dressings of the smaller ones with caustic, preferably 

 acidum aceticum. The parts should be examined daily 

 after this, and weak solutions of nitrate of silver or zinc 

 sulphate applied to promote healing. 



Congenital Malfoemations op the Penis are occasionally 

 seen in dogs. Thus a case is related (' Veterinarian/ 1877, 

 p. 249) by Grill, of Hastings, in which a pup seemed to 

 pass his urine from the rectum in drops. Amputation of 

 the skin over the glans penis (circumcision) effected a 

 complete cure. Here there was evidently imperforate 

 prepuce, of which, also, Hill relates a case. 



Amputation op the Penis is performed on the dog in 

 the usual manner, except that the bone must be divided 

 with a saw or by means of a strong pair of bone forceps. 

 Peuch and Toussaint, in describing the operation, remind 

 us that a retraction of the urethra is apt to occur after opera- 

 tion and urination thereby become impeded, a contingency 

 which must be provided against by insertion of a cannula 

 or a short catheter, and its retention for some few days in 

 position. In a case of cancer of the whole of the corpora 

 cavernosa I recently removed the whole penis and testes, 

 leaving the opening of the urethra in the perinseum. 

 Remarkably little blood escaped on operation, but the 

 patient being in an extremely weak state died in three 

 hours from exhaustion. 



The scrotum of the dog sometimes undergoes Inflam- 

 mation with very severe after-effects of a nature which has 

 not been thoroughly explained. After a short period of 

 severe irritation of the parts a marked erythema sets in, 

 which runs its course rapidly and generally yields to 

 simple antiphlogistic measures. In other cases, in conse- 

 quence of neglect or constitutional peculiarity of the 

 patient and deficiency in tone of his system, although the 

 parts seem to be healing freely, changes are taking place 

 which involve the deeper coats of the scrotum, extending 

 from the inflamed skin. Thus the scrotal tissues may 

 assume a semi-cartilaginous consistence, or their changes 

 may seem more of a malignant character, the tissues 

 forming a ragged ulcer, generally as a result of their 



