THE GREASE. 73 



to an excessive degree by exercise, and which 

 might be supposed to compensate for deficiencies 

 in other respects, yet it will be found, that the 

 result of excessive labour and perspiration will 

 be a proportionate debility, whereas the insen- 

 sible perspiration is a tranquil and imperceptible 

 evacuation, carried on without putting nature 

 to any expence of corporeal powers. The bad 

 effects arising from the foregoing causes, are 

 considerably aggravated by confinement to one 

 situation, probably during eighteen hours out of 

 the twenty-four. The pavement of the stall 

 being on an ascent, will throw three-fourths of 

 the weight of the body on the hind legs, and 

 w^ill also distress them by the toe being placed 

 upon higher ground than the heel, whereby the 

 ligaments and membranes are kept constantly 

 distended. Under these unfavourable circum- 

 stances the legs swell, a rupture of the skin 

 eventually takes place, and a serous discharge 

 ensues, which, by exposure to the atmosphere, 

 acquires a fetid and ^crirnQnious quality. As 



the 



