46 The Management and Diseases of the Dog. 



It is almost needless to add that a dog so affected should 

 never be used for breeding purposes. 



POLYPUS. 



Polypus within the nose is occasionally met with in 

 canine practice. At times the tumour is visible externally, 

 protruding from the nostril ; whilst at others, and when 

 small, it may be situated high up and out of sight. 



Symptoms. — The animal frequently sneezes, and from the 

 obstruction to the free passage of air the respiration is 

 stuffy and difficult, and, if the obstruction has existed some 

 time, is accompanied with nasal discharge. Examination 

 reveals the presence of polypus. 



Treatment. — This consists in removal by ligature or for- 

 ceps, and the nostril may be syringed for a few days 

 afterwards with a weak solution of alum. 



OZ^NA, 



Though of common occurrence in the horse, is rarely seen 

 in the dog. The disease consists of a copious and foetid 

 discharge from one or both nostrils. ^ 



Causes. — Prolonged catarrh, irritation, from the presence 

 of foreign substances in the nasal chambers or frontal 

 sinuses, ulceration of the Schneiderian membrane, disease 

 of the turbinated bones, unsound teeth. 



Symptoms. — Discharge, as already described, which may 

 be continuous or periodical, obstructed breathing, haying a 

 rattling sound from the ingress and egress of air through 

 the said discharge ; frequent sneezing and occasional 

 cough. 



Treatment.— T\\t. nostrils should be daily syringed with 

 warm water, and where there is ulceration or diseased bone, 

 either of the following lotions may be injected : 



