LESSON III. 



THE EYE. 



22. — We now come to one of the four principal 

 things which you have to see is sound and all right 

 in buying a horse — namely, the eye. First take a 

 glance at both eyes in good daylight^ and compare 

 their size. It is of the highest importance that 

 they should be both one size, because if one is less 

 than the other it is very likely that the lesser one 

 has been attacked with inflammation which is called 

 ' opthalmia.' Now ' opthalmia ' is a disease that 

 returns again and again, and destroys the sight. 

 One of its effects is very often to leave the eye it 

 has attacked smaller than its fellow. It also leaves 

 other evidences, but these require a properly qualified 

 veterinarian to discover. 



The colour of the two eyes need not be alike and 

 yet the eyes may be quite sound. The colour of the 

 eye depends upon the colouring matter in the iris, 

 a structure to be spoken of by and by. It may be 



