308 



ring for a head. The chimpanzees would swing on these ropes, chasing 

 each other from end to end of the cage. We found that the more exer- 

 cise they took, the longer they would live in captivity. One day one of 

 the bolts came loose and fell to the floor. The manager got into the 

 cage, picked up the bolt and handing it to Joe, told him to put it up thei-e 

 in place, pointing to the hole, and hold it until he could make it fast. 

 Joe took the bolt, climbed to the top of the cage, put it into its proper 

 hole and held it there until the manager got on top and fastened it. The 

 head keeper was standing near, and exclaimed, "By George, that's going 

 some." His words expressed the thought of all us. It was the strongest 

 manifestation of intelligence I had ever seen from an animal. 



One Christmas morning a gentleman with a Great Dane came into 

 the room. Mike and Joe were much excited and not a little afraid of 

 the dog. Joe climbed over the senior partner's back. Mike got a piece 

 of board into which Joe had been driving nails, and made desperate at- 

 tempts to throw it. He would swing his arm back and forth, but did 

 not seem to understand just when to let go, and the board was just as 

 likely to go back over his shoulder as toward the dog. But now and 

 then he came very near the dog and hit him a telling blow. Mike kept 

 practicing at throwing till he became expert. He got into the infamous 

 habit of throwing the hammer out among the people in front of the stage, 

 and we had to keep it out of his reach. The wife of the manager came 

 out of the kitchen with a half head of cabbage and cast it over the bars 

 onto the stage, there being no top on to the chimpanzee cage at that 

 time. Mike picked up the cabbage and tossed it back to her with just 

 as much dexterity and precision as she had used. 



We once had a very intelligent chimpanzee called Sallie. A negro 

 connected with the menagerie had a needle and thread with which he 

 mended his clothes. Sallie watched the operation very intently. A little 

 later she was noticed with a string trying to find an eye in a nail. She 

 was given a small darning needle, and a heavy cotton thread, and at once 

 threaded the needle, just as she had seen the negro do. After that she 

 could not be deceived. When given a nail or piece of wire, she would 

 look for an eye and, if there was none, she would throw away the coun- 

 terfeit. She would begin by wetting the end of the thread in her mouth, 

 would place the eye of her needle in line with her eye, insert the thread 



