THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 191 
leg, it fears to leap, but walks up higher, where there it 
finds a natural bridge. 
The kitten is put on the window ledge where there 
is some milk. It soon wishes to get down, hesitates, 
eries, looks to mother apparently for aid, walks along 
the whole ledge, in doing which, as the window is open, 
it must pass over a surface only 14 inches wide. At 
last I hold a journal a little way from the ledge upon 
which the kitten steps and is lowered by me to the 
floor. 
Sucks mother now practically only at night, though 
up to the present it has eaten no solid food. 
39th day.—When lapping milk the old difficulty is 
noticed to-day and occasionally still. 
Climbs on my lap, and thence upon the table by 
which I sit, making use of the table-cloth as a means of 
ascent. 
Gets from an ordinary chair to the table, and comes 
upon my lap by a little leap—the distance being about 
7 inches—first crying, however, as if aware of the 
danger and difficulty. 
If at any time it is out of the room a little way, and 
hears footsteps, ete., runs back. 
Now goes from table to any chair that may be near it, 
and thence to the floor by a sort of scrambling descent. 
On dangling a string before it, the kitten at first 
hisses, and then in a moment plays with it, catching it 
with her paws again and again. 
Goes to pan spontaneously. Always cries before 
answering nature’s calls, and paws the sand invariably 
afterwards, and sometimes before. 
40th day—Weight 14 lbs. Growing well. 
Tries to get on a low chair about a foot from the 
floor, on which there is a stool that almost covers the 
top. In this it fails. The kitten then goes to the book- 
shelf near, and tries to reach the chair. The stretch is 
