CONTAGIOUS AND EPIZOOTIC DISEASES. 1 



surface and agglutinates the hairs in yellowish scabs, on the 

 removal of which a red, raw depression is seen with the scab 

 fixed in its centre. In three or four days the secretion ceases, 

 the scabs dry up and the parts heal spontaneously. It is easily 

 transmitted from horse to horse, to man or to the cow. N(? 

 treatment is required. 



COW-POX. 



This is the same disease appearing in the cow. There is a 

 preliminary slight fever, usually overlooked, succeeded by some 

 diminution and increased coagulability of the milk and the 

 appearance of the pox on the udder and teats. The udder is 

 hot and tender for a day or two, then little pale-red nodules, 

 about as big as peas appear, growing to three-fourths to one 

 inch in breadth by the eighth or tenth day, acquiring liquid 

 contents, and often a central depression on the summit. The 

 liquid in each pock is contained in several distinct sacs, and 

 cannot be all extracted without a succession of punctures on 

 different parts. The liquid, at first clear, changes to yellowish 

 white (pus) and soon dries up, the whole forming a hard crust 

 which is gradually detached. On the teats the blisters are early 

 ruptured and raw sores form, often proving very obstinate, 

 and even leading to inflammation of the udder, abortion, or 

 death. 



Treatment is scarcely ever demanded further than to obviate 

 sores on the teats. A mild laxative of Epsom salts is, however, 

 usually desirable. The teats may be smeared with an ointment 

 formed of an ounce each of spermaceti and almond oil and 

 half a drachm of myrrh. Milking tubes may be necessary to 

 avoid injury by drawing the teats. 



In many localities the disease appears to all newly-calved 

 heifers on particular farms, in which case it would be well to 

 purify the barns by a thorough disinfection. 



