128 DISEASES OF THE HOESB. 



manently, must be by a gradual and progressive improve- 

 ment. Five grain doses of arsenic, given once in the 

 twenty-four hours for two weeks; then, after a week's in- 

 termission, commencing as before, will soon cure many cases. 

 Give the animal feed in small bulk. Use as little hay, 

 or rough feed, in large bulk, as possible. Improve the 

 condition of the horse by every way or means, and you will 

 relieve the animal. 



Heat. — General heat of the skin indicates fever ; local 

 ' heat, inflammation. 



Hepatic Diseases. — (See Liver, Inflammation of the.) 



Hernia. — This is a name given to ruptures, (see Rup- 

 tures.) 



Herpes. — A name used in skin diseases, (see Mange 

 and Skin Diseases.) 



Hereditary Diseases. — No one, of any observation, 



can deny that hereditary influence exists in the production 

 of disease. This influence must not, in the production 

 of disease, be considered as invariably reliably. The fact 

 of horses or mares having a disease, is no reason why their 

 young will have the same disease, also. It was through 

 change or alteration of structure, action or function, that 

 existed in either of the parents, that disease fastened 

 upon them, and these same forms which existed in them 

 are likely to be transmitted to the offspring, thus carrying 

 the various formations of structure, which will ultimately, 

 in all probability, produce the same disease. A great num- 

 ber of the affections, which are usually styled hereditary, 

 do not make their appearance until years after their 

 birth, because it requires time and work to develop them. 

 Few persons would expect a horse with cow hock, (which 

 see,) to become curbed without work, as a secondary cause. 



