DO ANIMALS THINK AND REFLECT? 
away. The wasp came out, brought it to the open- 
ing as before, and went within a second time; again 
the game was removed, again the wasp came out 
and brought it back and entered her nest as before. 
This little comedy was repeated over and over; 
each time the wasp felt compelled to enter her hole 
before dragging in the grasshopper. She was like 
a machine that would work that way and no other. 
Step must follow step in just such order. Any inter- 
ruption of the regular method and she must begin 
over again. This is instinct, and the incident shows 
how widely it differs from conscious intelligence. 
If you have a tame chipmunk, turn him loose 
in an empty room and give him some nuts. Find- 
ing no place to hide them, he will doubtless carry 
them into a corner and pretend to cover them up. 
You will see his paws move quickly about them for 
an instant as if in the act of pulling leaves or mould 
over them. His machine, too, must work in that way. 
After the nuts have been laid down, the next thing 
in order is to cover them, and he makes the motions 
all in due form. Intelligence would have omitted 
this useless act. 
A canary-bird in its cage will go through all the 
motions of taking a bath in front of the cup that 
holds its drinking-water when it can only dip its bill 
into the liquid. The sight or touch of the water ex- 
cites it and sets it going, and with now and then a 
drop thrown from its beak it will keep up the flirting 
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