152 ANIMAL INTELLIGENCE 
with first of all a dazed sort of expression, then one of 
ereat surprise and enquiry, followed shortly by her 
throwing herself upon me with a bark, almost a shriek 
of joy. She passed through al] the stages the puppy 
manifests, but with those added ones coming from 
enlarged experience and a richer psychic life. 
The part smell plays in the ordinary and extra- 
ordinary life of the dog is a most interesting and by 
no means exhausted subject, which, though tempting 
to pursue, is somewhat aside from the scope of the 
present paper. 
As illustrating the development taste undergoes in a 
few days, special attention is called to the accounts 
given on the 28th, 31st, and 34th days. 
Experiments on taste might have been made at an 
earlier date, but this omission was supplied in the case 
of another litter of puppies to which reference will be 
found in extracts from a diary introduced later. 
Some references to smell, as it influences habits, even 
in very young puppies, have been referred to in the 
diary. 
In the dog, much more than in the man, are smell 
and taste associated, and this becomes evident in the 
early as well as the later psychic hfe of this animal, 
as shown by the diary, though this is like many other 
features, much more evident to the one who daily 
associates with animals, than it can be from the best 
description it is possible to write. 
Vis1on.—Owing to the gradual opening of the eyes, 
it is difficult to see the pupil, and to make observations 
on the reaction of the inis to ight. Apart from this, 
the record of the development of vision will, it is 
hoped, be found pretty complete. 
The “opening of the eyes” is really a separation of 
the lids, which are practically one at birth, by a process 
of growth and absorption along the lne of their future 
