144 f^® HORSB. 



was withoHt avail, except, perhaps, the use of iodine, injected in the 

 circulation in as large quantities as could be tolerated by the system. 

 This treatment gives good results in the human being, but requires too 

 much personal attention to be economical in animals when the disease 

 occurs in epidemic form, although it may be used in the horse when oc- 

 curring in an animal of great value. 



The prophylactic treatment formerl}' consisted in the avoidance of 

 certain fields and marshes which were recognized as contaminated dur- 

 ing the months of August and September and had been occupied the 

 years in which the outbreaks usuallj' occurred. It underwent, however, 

 a revolution after the discovery by Pasteur of the possibility of a pro- 

 phylactic inocculation which granted immunity from future attacks of 

 the disease equal to that granted by the recovery of an animal from an 

 ordinary attack of the disease. 



This treatment consists in an artificial cultivation of the virus of an- 

 thrax in broths, jellies, or other media, and in the treatment of it by 

 means of continued exposure to the atmosphere or to a high temperature 

 for a certain length of time, which weakens the virus to such an extent 

 that it is only capable of producing an ephemeral fever in the animal in 

 which it is inoculated, and which yet has retained a suflScient amount of 

 its power to protect the animal from inoculation of a stronger virus. The 

 production of this virus, which is carried on in some countries at the 

 expense of the government and is furnished at a small cost to the farm- 

 ers in regions where the disease prevails, in this country is made only in 

 private laboratories. 



Inflammation with Pustules. This is often wrongly named 

 "farcy buds." In this affection the individual elevations on the in- 

 flamed skin show in the center a small sac of white, creamy pus, 

 in place of the clear liquid of a blister. They vary in size from a 

 millet seed to a hazel nut. The pustules of glanders (farcy buds) 

 are to be distinguished by the watery contents and the cord-like 

 swelling, extending from the pustules along the line of the veins, 

 and those of boils by the inflammation and sloughing out of a core 

 of the true skin. The hair on the pustule stands erect, and is often 

 shed with the scab which results. When itching is severe the parts 

 become excoriated by rubbing, and, as iu the other forms of skin 

 disease, the character of the eruption may become indistinct. Old 

 horses suffer mainly at the root of the mane and tail, and about the 



