138 . ANIMAL INTELLIGENCE 



43rd day. It is warm, and two are noticed lying in 

 a darker and more secluded part of the kennel, where 

 there are fewer flies perhaps. 



It is noticed that now one often acts as does another ; 

 one seems to take its cue from another. 



4Ath day. So very warm, the puppies are prostrated 

 by the heat, and lie about, maintaining mere existence. 



45th day. To-day, for the first time, the door of their 

 compartment was left open, so that they might enter 

 an adjoining one, which is in general fitted up in the 

 same way, so that the environment is substantially 

 the same. 



It was curious to note the results. It was some 

 minutes before the puppies, the precocious bitch ex- 

 cepted, realised that the door was really open, and 

 that they had free access to a new compartment. They 

 did not at once surmount the difficulty presented by the 

 door case only a few inches high. When some of them 

 came in and saw the water vessel attached to the other 

 side of the wire-mesh partition, they did not at once 

 comprehend that they could not drink from it, when 

 they saw their fellow on the distant side lapping. All 

 this, however, lasted but a very few minutes. Soon 

 they all were busy investigating the new place with 

 nose, eyes, feet, etc. 



The new experiences evidently afford them unusual 

 pleasure in spite of the heat, as they play more than 

 for some days. 



To-day I first used a switch to learn what effect it 

 would have on their crying, etc. 



They seem to make the mental association to some 

 extent, but only imperfectly. 



One of them, as they crowded around me, was trodden 

 upon, and this had a decided and somewhat lasting 

 psychic effect, as will be seen later. As he was running 

 away after this accident, I caught him, and was trying to 



