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In a healtliy horse in summer, a reverse 

 action may be observed. If the animal is 

 standing or moving slowly in the hot sun, 

 the hair will be seen to rise, to shut off the 

 effect of the sun and to preserve the skin 

 from being too much heated. Here the 

 coat is practically thickened, to keep the 

 sun from injuring the skin — to keep the 

 heat out, — just, as in winter, the coat rises 

 to keep the heat in. 



I have often noticed the rising of the 

 summer coat in the hot sunshine. It puts 

 on the appearance of cut velvet. The far- 

 mers say the horse raises his coat to keep 

 off the flies. 



If, however, when the summer coat is 

 up against the sun's rays, you quicken his 

 motion, and consequently his internal fires, 



