THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 119 
5th day.—When pinched, they gave evidence of feel- 
ing by a cry and movement, though the latter is not very 
marked. When the hand is laid over them in a caress- 
ing way just afterwards they are at once quieted. I 
regret that this experiment was not made earlier. 
6th day—Several attempts are made to ascertain if 
they smell, but with uncertain results. Warm milk 
and meat were held near their noses. I think there was 
some sniffing as a result, but cannot be certain. 
7th day.—Growing well. Two specimens (females) 
weigh 2 lbs. 7 oz. and 2 lbs. 10 oz. respectively. Tested 
taste by the use of milk and of aloes. A finger dipped 
in milk is long sucked. When aloes, in solution, is 
placed on the finger, the latter is not long sucked, and 
the facial movements indicate disgust, quite the reverse 
in the case of anything sweet. I endeavoured to learn 
whether they knew if the dam were near them by smell, 
but could not establish it. Up to this date, and long 
after, no evidence of hearing to be elicited. 
9th day.—When the dam is out of the pen, as she now 
often is, the puppies suck frequently at different parts 
of the bodies of each other. They will suck vigorously 
and for some time at my finger. 
It is easy to notice now great progress in power of 
movement, especially as regards the forelimb, mouth 
parts, and head or neck. No movement of the tail at 
all yet nor for some time. 
10th day.—I again attempted to determine whether 
they could smell, in the same manner as before, but 
with no definite results, though strongly inclined to 
believe that they could to some extent. 
When the dam, after an absence, steps into the pen, 
two or three may happen to get between her legs after 
she lies down. Presently these and others commence 
to move in a lively way in all directions, and before long 
manage to reach the teats. 
