SOME DISEASES OCCURRING ABROAD 



but such animals are often mere physical wrecks, and their 

 value over-estimated. Cape horse sickness is most prevalent 

 during the rainy season, frost being one of the best natural 

 preventives, although cases have occurred when snow has 

 been on the ground. 



The average period for the incubation of this disease is 

 about a week. It assumes several forms. In one form the 

 tongue swells and turns blue through engorgement with impure 

 blood, probably protruding from the mouth. This is the so- 

 called blue tongue. In other cases the head and neck swell — 

 dikkop. The pulmonary form is common, and the patient does 

 not as a rule live longer than three or four days. 



The first intimation that a horse has been infected with 

 this disease is denoted by shivering and a rise of temperature, 

 more especially in the evening. In addition to all the ordinary 

 signs accompanying an acute illness, there is a frothy discharge 

 from the nostrils, and it is said also a bulging of the pits over 

 the eyes. Sometimes death occurs within a few hours, generally 

 within three or four days. Sometimes recovery takes place, 

 though the death-rate must be considered very high. i\s a 

 preventive, horses must be kept away from the grass until the 

 dew is off. 



EPIZOOTIC LYMPHANGITIS. 



This disease is uncommon in this country, and most of the 

 cases have been recorded by Army veterinary surgeons. In 

 some respects the malady is not unlike farcy — that is, glanders — 

 showing itself in connection with the absorbents and skin. 



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