BLACK QUARTER. 297 



of iron in addition to the above. The iron, however, may 

 dry up the milk considerably. The case may resolve itself 

 whether it would be better to have a dead cow or a dry 

 one. Good and generous feeding is indicated in this 

 disease. 



Apoplexy. — (See Splenic Apoplexy.) 



Aptha or Thrush. — This is an eruption in the 

 mouth similar to small bladders, and is often mistaken 

 for a contagious disease called Epizootic Aptha. 



Cause, Irritation in the mouth of young cattle from 

 teething. 



Treatment. — If treatment be at all necessary, a weak 

 mixture of vinegar and cold water will answer, or a solu- 

 tion of alum or alum water applied to the mouth twice 

 a day will be all that is wanted. 



Biliary Calculi or Gallstones. — These are of 

 several colors. 



(1.) White Gallstones. 



(2.) Yellow Brown Gallsones. 



(3.) Dark Green Gallstones. — All of which are 

 hard, grooved, and have the odor of musk. During the 

 life of the animal, no symptoms are observed, whereby, 

 their presence can be detected. This however, is of little, 

 or no consequence as no treatment is necessary, and 

 scarcely ever cause the ox any inconvenience. 



Black ftuarter. — Joint Felon Quarter Evil — This is 

 the disease of young cattle, and occuring in the spring of 

 the year, and is characterised by one hind leg and thigh 

 being congested, and black with coagulated blood. The 

 other portions of the body retain their normal or healthy 

 appearance. It is sudden in its attack, and death follow 

 in a few hours. 



