126 APES AND MONKEYS 



He had a certain amount of ingenuity, and often 

 evinced a degree of reason which was rather unexpected. 



It was not a rare thing for him to solve some problem 

 that involved a study of cause and effect, but this was 

 always in a limited degree. I would not be understood to 

 mean that he could work out any abstract problem, such 

 as belongs to the realm of mathematics, but only simple, 

 concrete problems, the object of which was present. 



On one occasion while walking through the forest, we 

 came to a small stream of water. The boy and myself 

 stepped across it, leaving Moses to get over without help. 

 He disliked getting his feet wet, and paused to be lifted 

 across. We walked a few steps away and waited. He 

 looked up and down the branch to see if there was any 

 way to avoid it. He walked back and forth a few yards, 

 but found no way to cross. He sat down on the bank 

 and declined to wade. After a few moments he waddled 

 along the bank about ten or twelve feet to a clump of tall, 

 slender bushes growing by the edge of the stream. Here 

 he halted, whined, and looked up thoughtfully into them. 

 At length he began to climb one of them that leaned over 

 the water. As he climbed up, the stalk bent with his 

 weight, and in an instant he was swung safely across the 

 little brook. He let go the plant, and came hobbling 

 along to me with a look of triumph on his face that plainly 

 indicated he was fully conscious of having performed a 

 very clever feat. 



One dark, rainy night I felt something pulling at my 

 blanket and mosquito bar. I could not for a moment 

 imagine what it was, but knew that it was something on 



