IN SEARCH OF A HORSE. 135 



to put him for a time in a farrier's hands, when 

 I took the opportunity of inquiring if his eyes 

 were good ; they were perfectly so ; not the least 

 trace of speck or cloud. I drove him for nearly 

 twelve months, and he never appeared to have his 

 sight at all affected, or. any other fault except 

 the tenderness of his heels. The jockey was right, 

 however, in his speculation: I re-sold him at a 

 profit. 



I have omitted one essential difference between 

 the human and the equine eye. The pupil in the 

 former is circular ; in the latter, an oval, with the 

 sides depressed, and the upper ridge of the oval is 

 rendered uneven by small bodies dependent from 

 the iris. 



I have been told that there are similar bodies on 

 the lower edge of the iris, but much more minute 

 in size. I have never observed them very distinctly 

 developed, but I by no means deny their existence. 



There is another variation between the horse's 

 and the human eye, of a very important and pecu- 

 liar character : at the inner angle of the eye, there 

 is found a dark membrane that, apparently at the 

 pleasure of the animal, is shot rapidly over the eye. 



