ANIMALS. 413 



The vivacity, or the languid motion of the eyes, 

 gives the strongest marks to physiognomy ; and 

 their colour contributes still more to enforce the 

 expression* The different colours of the eye are, 

 the dark hazel, the light hazel, the green, the 

 blue, and grey, the whitish grey, " and also the 

 red." These different colours arise from the 

 different colours of the little muscles that serve 

 to contract the pupil ; " and they are very often 

 found to change colour with disorder and with 

 age." 



The most ordinary colours are the hazel and 

 the blue, and very often both these colours are 

 found in the eyes of the same person. Those 

 eyes which are called black are only of the dark 

 hazel, which may be easily seen upon closer in- 

 spection ; however, those eyes are reckoned the 

 most beautiful where the shade is the deepest; and 

 either in these, or the blue eyes, the fire which 

 gives its finest expression to the eye, is more dis- 

 tinguishable in proportion to the darkness of the 

 tint. For this reason, the black eyes, as they 

 are called, have the greatest vivacity ; but pro- 

 bably the blue have the most powerful effect in 

 beauty, as they reflect a greater variety of lights, 

 being composed of more various colours. 



This variety which is found in the colour of 

 the eyes> is peculiar to man, and one or two other 

 kinds of animals ; but, in general, the colour in 

 any one individual is the same in all the rest. 

 The eyes of oxen are brown ; those of sheep of a 

 water colour ; those of goats are grey : " and it 

 may also be in general remarked, that the eyes 



