242 CLINICAL VETERINARY MEDICINE AND SURGERY. 



sputum. In order to guard the dog against distemper Mme. V — , 

 following the advice of some gossip, gave the animal from time to time 

 the contents of the spittoon. This went on for several months. The 

 dog ended by becoming tuberculous. Large lesions in the mesenteric 

 glands and liver showed that infection had occurred through the 

 intestine. 



Without reference, however, to the source and channel of infection, 

 the dog may become dangerous to man as soon as affected with lesions 

 from which contagious material is externally discharged. A tubercu- 

 lous dog which lives in or enters rooms inhabited by its master may 

 there distribute such discharge. If it plays with, is petted, or looked 

 after by children, this discharge may come in contact with their clothes, 

 or even with their faces. Pet dogs may even infect the sleeping apart- 

 ments or beds of their owners. In 1894 I was several times consulted 

 by Mme. C — , living in the Rue Favart, at Paris, concerning a little 

 terrier which for a long time had appeared thin, and at intervals had 

 shown cough and nasal discharge. The dog was very closely watched, and 

 without doubt had contracted tuberculosis in one of the watering-places 

 in the south of France where Mme. C — annually resorted. I informed 

 her that the dog was probably tuberculous, and suggested the necessary 

 precautions to take, but only after some time would she consent to 

 send it away. Though ill for a whole year the animal had passed most 

 of its time in Mme. C — 's living room, and all its nights in her sleeping 

 apartment. The post-mortem examination of this dog showed, in addi- 

 tion to other lesions, cavernous spaces in both pulmonary lobes and 

 a tuberculous ulcer in the larynx. 



My case-books contain a number of instances of this kind. I will 

 only relate the most recent. On the 13th October last a dog, which 

 the owner, a working man, thought pure-bred and of great value, was 

 killed when in the last stage of emaciation. Its existence had been 

 passed in two rooms, inhabited by this man, his wife, a three-year-old 

 child, and the dog. The dog had been ill for five months, had had 

 frequent attacks of coughing, discharge from the nose, and vomiting. 

 It had not left the house except on the day when it was brought to 

 Alfort. On post-mortem examination we found generalised tuberculous 

 lesions ; both lungs were full of tubercles, and in part destroyed by 

 cavernous spaces. 



You have noted that many tuberculous dogs show no discharge, or 

 only a trifling running from the nose, and in the majority of those 

 which do discharge the material is only seen at certain times. But 



