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ditions of the affection. Where the same cause can be properly 

 assigned in producing different diseases, although apparently dis- 

 similar, the treatment must be the same. Thus, if the acari is the 

 cause of more than one kind of skin disease, of course the treat- 

 ment must be directed to the destruction or removal of this insect 

 or mite, before a cure can be effected ; so, aloo, with faulty assimi- 

 lation or digestion, which so often gives rise to skin disease, and 

 which must be improved and corrected before the effect (disease), 

 will cease and be cured. 



(1.) Baldness. — Parts of the skin of the horse become denuded 

 of the hair, occasioned by minute or small pimples, which usually 

 contain a fluid, and burst, or break, carrying the hair with it. 

 These pimples, or small tumors, however, are sometimes vesicular, 

 sometimes popular, and sometimes scaly. They are caused by 

 faulty digestioD, and should be treated by soft feed, or fresh-cut 

 grass. The hair will grow again. 



Baldness is caused by scalds, burns, and blisters ; and where the 

 true skin is not entirely destroyed, the hair can be restored by 

 using a weak ointment of iodine — iodine, half a drachm ; hog's lard, 

 eight drachms ; mix, and apply by rubbing with the hand, once 

 every third day, till there are evidences of a growth of hair spring- 

 ing up. Gunpowder and lard have no more power in causing 

 hair to grow, than as much lard, saltpetre, sulphur, and char- 

 coal would have ; nor is it to be compared to the iodine, because, 

 if iodine does not restore the hair in all cases, it will certainly dye 

 or stain the skin a dark color, which cannot be washed off; and 

 hence, in dark-skinned horses, is of much use in removing the 

 bare, bald-look of a white spot. 



(2.) Ma^ge, Itch, Psora, or Scabies. 



Cause. The result of an insect breeding and burrowing in the 

 skin, and is called acari, a variety of mite or animalcule. 



Symptoms. At first, a fine crop of pustules, not at this time 

 always seen, about the head and neck, and under the mane. By 

 the horse rubbing himself against whatever he can get at, the hair 

 falls off, and exposes an angry and red-colored skin, with red 

 points and lines, fissures, wrinkles, or scratches. After this con- 

 dition, we have dryness, scruffiness, baldness, and whitening of the 

 «kin, accompanied with great itchiness. 



