30 Animal Intelligence 
string which ran over a pulley and was fastened to the door, 
just as soon as the animal loosened the bolt or bar which 
held it. | Especial care was taken not to have the widest 
openings between the bars at all near the lever, or wire 
loop, or what not, which governed the bolt on the door. 
Z) 
1X71 
HLW/ 
For the animal instinctively attacks the large openings first, 
and if the mechanism which governs the opening of the door 
is situated near one of them, the animal’s task is rendered 
easier. (‘You do not then get the association-process so free 
from the helping hand of instinct as you do if you make the 
ut reference to the position of the mechanism to 
within it] These various mechanisms are so 
v verbal description will suffice in TAQSE CASES. } 
h the reader should note are the nature of the 
ch the cat had to make, the nature of the 
the movement was dirested, and the posi- 
t in the box. | In some special cases atten- 
A ed 
\ 
Fic. 1. 
