13 THE GREASE. \ 



acclivity of the pavement of the stall, cutting i 

 the hair off the heels, and want of proper ex- 

 ercise and cleaning. ' j 



I 



In the winter season, at which period the j 

 grease is most prevalent, the insensible perspira- ■ 

 lion of the body is not so regular, nor so pro- , 

 fuse as in the summer; but nature generally | 

 provides against this decrease, by increasing the 

 discharge of urine, and the expiration of vapour I 

 from the lungs; and this mode of expulsion 

 would be fully sufficient for the purposes of the 

 animal oeconomy, if the horse remained in a 

 state of nature. But it is far different with him 

 in a domesticated state, in which he is alter- 

 nately exposed to a warm and cold atmosphere, 

 as he is within or without the stable. The se- 

 cretion and evacuation of urine is disturbed in 

 its process, by forcing him to proceed in his 

 labour at the moment when the fulness of the 

 bladder stimulates him to discharge its contents; 

 and although the perspiration may be increased 



to 



