EXERCISE. 229 



If a threatened disorder in the eye is sup- 

 posed to be the effect of repletion and re- 

 sulting viscidity, some judgment may be 

 formed from a minute examination of the . 

 blood, which will bear resemblance to the 

 state accurately explained when the horse is 

 too much above himself in condition, and the 

 vessels more or fess overcharged with impu- 

 rities. Exclusive of a sole dependence upon 

 which prognostic much information may be 

 collected from external appearance ; the eyes 

 are full, heavy, and dull, with an apparent 

 tendency to inflammation in the lids above 

 and below, and exceedingly turbid in the 

 centre ; displaying in such state a perpetual 

 drowsiness, his eyes being frequently closed 

 when standing in the stable undisturbed and 

 seemingly unperceived, but without the least 

 discharge tending to discover the original 

 cause of complaint. 



On the contrary, when arising from an 

 impoverished and acrimonious state of the 

 blood, the eyes become upon the first attack 

 full and inflamed ; almost immediately dis- 

 chaj'ging a sharp scalding serum, that is in- 

 cessantly rolling down the cheeks, and in its 



