188 
ANIMAL INTELLIGENCE. 
pull the glazed leather cover off a trunk which was near kim : 
I pulled the trunk away, and when he found it was out of his 
reach he ran and pushed the marble towards the trunk in the 
manner I have described, and when he knew his chain was 
then sufficiently long to reach the trunk, he ran to the latter 
and hastily resumed his destructive process. 
29th. I notice that nothing the person does who has hold 
of his chain offends him. I mean, although he is furiously 
angry at having anything taken away from him, he is not 
at all angry if he is pulled away by his chain. If he is 
trying to bite a person, and another person takes hold of his 
chain behind him and so prevents his spring forward, he does 
not turn to bite the person who has taken hold of his chain, as 
a dog would do under similar circumstances, but quietly submits 
to be thus held. He seems to look upon his confinement and 
management by a chain as a natural law against which it is 
useless to struggle. On the other hand, he seems to be quite 
aware of the place where his chain is fastened, and to know 
that if he were clever enough to undo it he would be free. 
After we found he could move about the marble slab of the 
washhand-stand in the way described, we had a ring sunk in 
the floor to tie him to. The moment the chain was fastened to 
that 1 he began to investigate its new connection, and continued 
to do so for hours, passing the chain rapidly backward and for- 
wards through the ring. When he found this did not loosen it, 
lie began to hammer it and the ring also with all his strength, 
and this he continued to do for the rest of the day. 
30th. He still continues to work at the chain where it is 
fastened to the ring. He passed the whole of the chain through 
the ring so many times with his fingers that it became quite 
blocked up in the ring, which made it very short, and it took 
me a quarter of an hour to disentangle it. He was very much 
interested in this process, sitting quietly beside me and watching 
my fingers intently, sometimes gently pulling my fingers on one 
side in order to see better, and sometimes casting a quick in- 
telligent glance into my face as if asking how I did it. After I 
had disentangled and lengthened the chain he worked at it 
again for hours, but took care not to twist it into the ring a 
second time. 
31st. Today he hurt himself by getting one of his toes 
caught in a hinge of the clothes-horse. He did not make any 
1 January 14, 1881. The marble slab was left with him after the 
chain had been fastened to the ring ; but since that time he has nevei 
attempted to move the marble. 
