S52 MODERN FARRIER. 



appears on the nipples of the cows in the form of 

 irregular pustules. At their first appearance they 

 are commonly of a palish blue, or rather of a colour 

 somewhat approaching to livid, and are surrounded 

 by an erysipelatous inflammation. These pustules, 

 unless a timely remedy be applied, frequently dege- 

 nerate into phagedenic ulcers, which prove extremely 

 troublesome. The animals become indisposed, and 

 the secretion of milk is much lessened.' 



There sometimes appears another kind of eruption 

 on the udder of the cow, which on a superficial vievv^ 

 may be mistaken for cow-pox. It consists of a 

 number of white blisters on the nipples, and these 

 blisters are filled with a whitish serous fluid. They 

 are to be distinguished from the pustules that take 

 place in the cov/-pox, by their not having the blueisli 

 colour of the latter, and by their never eating into 

 the fleshy parts, being confined to the skin, and 

 ending in scabs. This eruption also appears to be 

 infectious, but not nearly in so great a degree as the 

 true cow-pox. 



Dr. Jenner considers this spurious eruption as 

 being chiefly produced by the transition which is 

 made by the cow, in the spring, from a poor diet to 

 one that is more nourishing, by which the udder at 

 this season becomes more than usually vascular for 

 the supply of milk. There is, however, another 

 sort of inflammation and pustules, which appears to 

 be not uncommon in all the dairy counties in the 

 west of England. A cov*^ intended to be exposed 

 for sale, and having naturally a small udder, is for a 

 day or two previously neither milked by the milker, 

 nor is her calf suffered to have access to her ; thus 

 the milk is preternaturally accumulated, and the 

 udder and nipple become greatly distended. The 

 consequences frequently are inflammation and pus- 

 tular eruption. 



As the eruption of the cow-pox disappears in a 

 few days, little more is required than t-o keep the 



