128 ANIMAL INTELLIGENCE 



one case the nose is all but covered with the character- 

 istic black pigment, though this one is in advance of 

 the others in this respect. 



23rd day. On my return on this day a long time 

 was spent with the puppies, and the following noted : 



The dam is no longer so much inclined to stay with 

 her offspring, and does not wish to suckle them so 

 frequently. 



The puppies are fed on the top of a large box, two at 

 a time. It is found that unless straw is placed on the 

 top of the box the puppies will not feed. They decline 

 to take half milk and water any longer, but must have 

 richer food, and considerable attention must be paid to 

 the temperature of the liquid. 



Great improvement is noticed in lapping milk, 

 though one is observed attempting to gulp the milk as 

 it were (hunger, etc.). 



Soon after feeding, the finger placed in the mouth is 

 not sucked but rather chewed. 



The readiness with which all sorts of sounds are 

 heard, even when some distance away, is striking. 



The puppies now follow a small object or a piece of 

 paper (2 by 3 inches) held within a few inches of the 

 face. 



Much growling in play, also more advanced use of 

 tail. They also wag the tail now sometimes when an 

 object is presented to them, or when anything pleases 

 them. They turn the head quickly towards any part 

 of the body gently pinched. 



On pinching one of them frequently and rapidly 

 much irritation is shown by the voice, expression of 

 face, etc. 



They now very frequently stand with the paws on 

 the edge of the enclosing boards of the pen, and show 

 that they would like to get out. The height of the pen 

 is now about 15 inches. 



