142 ANIMAL INTELLIGENCE 



quietly in the sawdust arose, a ad looked towards the 

 source of the sound. 



54th day. The same sort of pawing, and at the same 

 places as before. 



It is scarcely possible to go into the kennel anywhere 

 now when they are awake without some of them 

 detecting my presence by ear, eye, or smell, or by all 

 three, as is now evidently often the case. 



55th day. Warm. Much barking and restlessness. 

 They have for some two or three weeks had the range 

 of two compartments of the kennel, but they would 

 evidently like the range of the whole yard as well as 

 the outside run; and if this were once permitted, 

 experience with other puppies has taught me, they 

 might be unwilling to stay in the kennel at all during 

 the day, which condition of things would not in several 

 respects be desirable. 



The dog trodden upon still shows that he remembers, 

 but will now turn to the lip-call. 



56th day. Eighth week. Though the litter remains 

 an even one, changes characteristic of growth and 

 development are evident. 



The bitch puppy shows very pronounced changes in 

 colour of coat, expression of face, temperament, etc., 

 and has the most marked individuality of any of them 

 at present. She seems still precocious. 



57th day. They are so active it is difficult to move 

 around among them. 



It is noteworthy that they use the kennel compart- 

 ment they occupied originally as a retiring place to 

 answer to nature's calls, while they play, rest, and sleep 

 chiefly in the additional compartment last given them. 

 Perhaps this is to be accounted for in part by the 

 fact that, from the latter, there is a door opening out- 

 ward, and another of wire-netting, through which they 

 can look out and catch an occasional breeze. 



