C. F. AMERY. 163 



the other, awaken dormant memories constitutionally in- 

 grained in the brain of the individual as memories of the 

 past experience and observation of the race. Instinct is 

 awakened only by sensation ; intuition is called into activity 

 only by perception through the senses. 



To add another illustration, we find the chicks a few 

 days old pecking at innumerable small objects lying on the 

 surface ; for a time they seize and swallow indiscriminately, 

 both substances fit and unfit for food, but experience soon 

 teaches them to discriminate, and at the end of a week we 

 find them selecting only what is edible. Here the condition 

 of the stomach produces the sensation of hunger, which 

 impels to action ; intuition guides to the performance of the 

 necessary act of adjustment, but only imperfectly ; neverthe- 

 less, it plays an important part by directing the faculties of 

 observation to the right channel, and by initiating the ex- 

 periments which result in intelligent discrimination. In- 

 tuition is now relegated to the background, it has no further 

 function in this department, but the instinct persists, for 

 nothing but its imperious demands would suffice, even in 

 man, to prompt to the necessary efforts to maintain his place 

 in the struggle for existence. 



These few illustrations of the functions of instinct and 

 intuition will easily render it clear that they can, neither of 

 them, afford any aid in the wondrous feat of the homing 

 pigeon. Instinct is but an impulse, a craving, a desire. 

 The bird at a hundred miles from its cote has a desire to 

 return to it, but this desire is not even instinctive, it is a 

 psychological emotion, powerful as instinct to impel, but 

 utterly valueless as a guide. Intuition again is only a con- 

 stitutional memory, born of the experience of the ancestral 

 stock and can exercise no function here. It may play a 

 certain subordinate part in bird-migration, but over a course 

 which the ancestral stock never traversed it is without a 

 suggestion. 



It is evident, then, that to account for the homing faculty 



