PREVENTION AND FIRST AID TREATiMENT OF DISEASE. 34I 



view have given good results, and the following precautions are at 

 present observed in South Africa. 



(i) During the horse sickness season, i.e.^ from November till June, 



or until the first post, no horse or mule is taken out of stables 



between sunset and sunrise. 



(2) Water is not allowed to stand in or near stables, and all vegetation, 



except trees, is removed from them. 



(3) Some dung is allowed to remain behind the horses, as mosquitos 



will not approach it, and smoke fires are lighted at the entrances 

 of stables. 



(4) As the blood of the affected is very virulent, carcases are cremated 



and standings thoroughly disinfected. 

 The preventive inoculation of mules has also given satisfactory results 

 and is being carried out. 



