THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 209 
Stamping with moderate force on the floor on the 
kennel (concussion), within 2 feet of the puppies, 
rouses them far more effectively than a sound of 
considerable loudness. 
One of the puppies is brought into my study. It 
moves about, crawling rather than walking, with its 
tau carried or held, much as in a turtle, the hind legs 
being much spread out. 
No great uneasiness manifested. 
The puppy is a picture of healthy vegetative existence. 
The incisor teeth are appearing. : 
As an evidence that the puppy is influenced by the 
change in the environment, it may be mentioned that 
the cheese and the meat do not produce now the effects 
they did when the puppy was in its own pen. 
Under favourable conditions a mere trace of salt 
causes decided signs of disgust. 
When blistering fluid is held within 2 to 3 inches 
of the nose the puppy acts as if something unpleasant 
were in its mouth. 
The puppy winks occasionally, apparently spon- 
taneously, but winking cannot be induced reflexly 
until the moving finger is approached so close to the 
eye as to almost touch the eyelashes. 
When the finger and thumb are moved, as in 
snapping the fingers, but without causing any noise, 
the puppy under observation ¢urvns its eyes in the 
direction of the object, so that I have no doubt that 
a small object, as a finger, is distinguished at 3 to 4 
inches, and a larger one at about 2 feet. When the 
fingers are snapped in the ordinary way, the head, as 
well as the eyes, are turned towards the exciting object, 
showing that vision and hearing are both stimulated 
effectively and together. 
Motor activity is still poorly developed. 
The coat, straight before, begins to show waviness. 
10) 
