454 Veterinary Medicine. 



petence, fever and steadily advancing emaciation. In some cases 

 the enlarged tracheo-brouchial glands are seen to bulge forward 

 between the two first ribs, and by the sides of the trachea. Stock- 

 ing of the limbs is frequent. 



Abdominal tuberculosis is most common in the young foal and 

 when not secondary, may be due to feeding on tuberculous milk, 

 especially in those brought up by hand on cow's milk. There is 

 debility, emaciation, anaemia, irregular appetite, digestive disorder, 

 constipation alternating with diarrhoea, colics, pot-belly, falling 

 in beneath the lumbar transverse processes, dry, harsh, scurfy 

 skin and advancing marasmus. Rectal exploration will usually 

 detect the enlarged sublumbar and mesenteric glands, and the 

 simultaneous manifestations of disease of the lungs, superficial 

 lymph glands, throat, or bones serve to identify the disease. 



In the advanced stages of tuberculosis in solipeds pol) r uria is a 

 frequent phenomenon (Nocard) tending to hasten the general 

 anaemia and marasmus. 



The patient often works for months or years but with gradually 

 encreasing debility, which is soon fatal after the occurrence of 

 generalized tuberculosis. 



In estimating the nature of the disease, indications may often 

 be drawn from the environment, feeding, etc. Nocard as the re- 

 sult of a careful study of the morphology and habits of the bacilli 

 has shown that the more purely abdominal form of equine tuber- 

 culosis is near akin to that of the chicken, while the pronouncedly 

 pulmonary form resembles the human type. McFadyean on his 

 part adduces a number of cases of tuberculosis in horses that 

 had been fed largely on cows' milk, a most significant fact con- 

 sidering that such a ration is rare for this animal, and that few 

 horses contract tuberculosis casually. Exposure therefore to the 

 sputa of man, of the nasal or bowel products of birds or to the 

 milk of cows, may suggest the probability of tuberculosis in a 

 horse with chronic anaemia, debility and wasting. 



The discharges from the nose of the affected horse are more 

 available than those of cattle for examination and experimental 

 inoculation, yet in many occult cases the diagnosis by tuberculin 

 is the only reliable resort. 



