[MrLLS] PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 195 
bottom of the box. This is the first indication of play or something closely 
akin to it that has been noticed. 
17th day.—Kitten follows with its eyes a small object at two feet 
distant and later my copy of a journal (11 x 84 inches) at 4 feet, Is able - 
to locate whether a light “hist” is uttered on the right or left. 
Licks its paws occasionally. 
Sleeps a great deal. 
18th day.—Seems to be following with its eyes the movements of a fly 
at 4 to 6 inches. 
Turns to bite at objects and puts paws together—a sort of feeble 
attempt at play. 
Climbs up side of box to the top and then cries as though desiring to 
get out. 
On calling “ puss”! “puss”! softly at about 3 feet the kitten turns 
toward the sound and moves the ear nearest to it. 
A piece of cooked meat is held near but no special effect is noticed. 
At 5.15 p.m., the kitten is seen to be plainly following flies with the 
eyes at 18 inches, and slightly raises paw in an attempt to catch them. 
Licks its own paw and then licks mother’s leg which is close to it. 
In the evening it gets lively and makes attempts at play, and crawls 
over the mother biting at her and itself [play]. 
The nose is now getting pigmented. 
19th day.—At 11 p.m. to-day, follows finger by lamplight at 4 to 5 
feet, climbs upon mother and sleeps there. 
20th day.—When “ puss”! “ puss ” ! is called to-day the kitten hisses 
softly (surprise). 
There is now nearly always a distinct movement of the ear towards 
the direction of sounds. 
Is taken from the box to-day and when free walks towards it. 
21st day.—Grows well, still sleeps much and is very quiet. 
After being out of box a short time it returns to it and tries to climb 
in. Makes two such attempts and almost succeeded. 
Can now follow a finger at 6 feet. 
Licks its right hind leg and holds it in a position convenient for the 
purpose. 
Some incisor teeth have appeared both above and below. 
22nd day.—Distinguishes a finger at 6 feet. 
When I scraped the fingers against the box in which it lies, hisses 
(surprise ). 
Licks herself on neck and chest, a difficult muscular feat. 
Biting skin like mother. 
Now walks relatively well. 
On two occasions to-day climbs to top of box from the outside, does 
not go in but puts paws on inside. 
