54 ANIMAL INTELLIGENCE 
manner described, I kept them under observation for 
the period during which they survived, viz. one for 
about a month and the other for between two and 
three months. From the first one of them seemed to 
take more kindly to his new surroundings than the 
other; one appeared shy and dull, while his fellow 
seemed as happy as any Chipmunk might be. They 
were captured in September, and it has often occurred 
to me that their habit of hibernation had something to 
do with the behaviour of the one, though we should 
expect that, in such a matter, both would be equally or 
considerably affected. The degree to which, while 
retaining their original habits, the latter became 
modified in confinement, furnished me with an interest- 
ing study, and suggested many problems. My ex- 
perience does not agree wholly with that of Audubon 
and Bachmann, who say in their “Quadrupeds of 
North America”: “We are doubtful whether this 
species can at any time be perfectly tamed.” The one 
of my Chipmunks that survived longest became, in a 
short time, so tame that he would eat from the hand, 
and even looked to be fed in this way. True, any 
noise, or any unusual movement, might startle the 
creature, when he would make the quick dart away 
so characteristic of the species in the wild state, but 
from this he very quickly recovered, and the tendency 
to be thus frightened grew less and less. The authors 
referred to also state that “they appeared to have some 
aversion to playing on a wheel, which is so favourite 
an amusement of the true squirrels.” 
This does not at all agree with my observations, 
for though at first my Chipmunk was apt to be startled 
when he found the revolver of his cage moving on his 
entering it, he soon got used to it, and delighted in it as 
much as any squirrel could—in fact, he used it by 
night and by day, manifesting an ability to control it 
