240 GORILLAS AND CHIMPANZEES 



saw him, but as a rule they move so stealthily as not 

 to be heard. I know of no other animal of equal 

 weight that makes so little noise in going through 

 the forest. During the short time he stood gazing 

 at me I sat still as a statue, and I think he was in 

 doubt as to whether I was alive or not. He did not 

 turn and run away, but after a brief pause turned off 

 at an angle and departed. He lost no time, but 

 made no great haste. The only sound he made was 

 a low grunt, and this he did not repeat. 



At another time I heard two making a noise 

 among the plantains near me. I could only obtain 

 a glimpse of them, but as well as I could see they 

 were of good size, being almost grown. They were 

 making a low sound from time to time, something 

 like I have described, but I could not see them well 

 enough to frame any opinion as to what it meant. 

 They were certainly not quarrelling, and I am not 

 sure that they were eating, for I afterwards went 

 and looked to see if I could find where they had 

 broken any of the stalks. Their trail was visible 

 through the grass and weeds, but I could find no 

 stalk broken. They were moving at a very leisurely 

 gait, and must have been within hearing ten or 

 twelve minutes. They were quite alike in colour, 

 and appeared to be so in size, although it is well 

 known that the adult male attains a much greater 

 size than the female. 



On one occasion when I was standing outside of 

 the cage some twenty yards away, Moses was sit- 

 ting on a dead log near by. I turned to him, and 



