THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 259 



It also pecks at its own foot and the nail of one's 

 hand. 



Chick C, hatched only a little while since, seems 

 feeble, creeps rather than stands, and is soon tire 

 out. 



All those tested do, without doubt, hear as well as see. 



They easily follow the hand by the eyes at a distance 

 of 6 inches. 



Can get the winking reflexes only when the eyes are 

 all but touched. 



A dark-coloured box, a piece of cotton, and the hand 

 are brought near the chicks in succession. The hand 

 alone is followed, showing that it is the ivarmth that 

 attracts. 



Solutions of salt and sugar, applied to the tongue, 

 produce no decisive signs of the possession of taste. 



Two pigeons the one a White Pouter, the other a 

 Black Owl were brought near, to test whether the 

 chicks would show any instinctive fear. They mani- 

 fested none whatever; on the contrary, they would 

 nestle under them. 



The birds are tested again about twenty-two hours 

 later. 



Previous to the first testing, they had not been from 

 under the hen, and since then they have been under 

 her and nowhere else. 



The three chicks now peck well at all that is put 

 before them, as oatmeal grains, canary seed, etc. They 

 peck readily, and touch the objects successfully. The 

 hardest objects are not always taken up at once, how- 

 ever. 



Some scales of dried lime-wash from the wall are 

 placed before the chicks. In one case a chick pecks at 

 a scale several times, then gets it into the mouth, but 

 only to eject it. 



