TUBERCULOSIS. 335 



resist subcutaneous and intraocular inoculation. The post 

 iiiortcm examination of these animals reveals invasion of the 

 lungs, bronchial, mesenteric, and other glands, spleen, &c., and 

 when there is a discharge from the nose the bacilli can be found 

 in abundance. 



Care must be taken that actinomycosis, which is not a rare 

 disease in the goat, be not mistaken for tuberculosis. 



TUBEECULOSIS OF THE DOG. 



Though by no means frequently affected, the dog is sometimes 

 the subject of tuberculosis. In this animal the disease usually 

 assumes the acute miliary or generalised form. A case recently 

 occurred in the practice of the author. A fox terrier had been 

 ill for three or four weeks and was brought to the College. It 

 died three days after admission. On i^ost mortem examination 

 nearly every organ was found to be affected with tubercidar neo- 

 plasms. They appeared in great numbers on the surface of the 

 pleura, peritoneum, and diaphragm. In the peritoneal covering of 

 the bladder, in the substance of the kidney, and in the 

 liver they showed as minute pearly points, while in the lung 

 their confluence had formed nodes and excavations of various 

 sizes. The heart was studded with nodules, a large one being 

 placed on one of the cusps of the mitral valve. On the 

 base of the heart and bordered by the pulmonary artery was an 

 elongated tubercular abscess containing a couple of tablespoon- 

 fuls of pus. The spleen was apparently unaffected. The brain 

 and testes were unfortunately not examined. 



Cats are more frequently affected than dogs ; indeed it is little 

 suspected what a common cause of death consumption is in 

 these animals. The disease in them also often appears as a gener- 

 alised tuberculosis; sometimes, however,the abdominal viscera and 

 membranes are affected to the exclusion of other parts. Then 

 chains of tumefied glands can be seen along the course of the 

 large intestines, and one or several large tubercular glands in 

 the mesentery. They are extremely hard — cartilaginous in fact. 

 In the liver, kidney, and spleen the tubercle follicles are as a rule 

 quite small, and appear in sections as a round-celled infiltration, 

 containing, especially in the liver, where they affect the portal 

 space for the most part, beautil'ul examples of giant cells with 

 their brightly shining zone of nuclei. When in this animal 

 the lung is affected the formation of vomicae is quite common. 



