146 ANIMAL INTELLIGENCE 



The extract from the diary of another litter of St 

 Bernards (their half brothers and sisters) is introduced 

 for comparison chiefly ; that of the Bedlington terriers 

 for this reason, and in addition because it supplements 

 the chief diary, and in some respects makes good 

 omissions in investigations in the early days. 



Remarks on the Diary, etc. 



As the litter of puppies on which these remarks are 

 chiefly based was a very healthy, active, and especially 

 even one, there being no weaklings, and none very 

 much in advance physically or otherwise, the notes 

 are of the more value as representing observations in 

 perfectly normal specimens of pure-bred dogs. 



The facts most striking in the first few days of life 

 are the frequent desire to suck, the perfect ability to 

 reach the teats of the dam just after birth, the misery 

 evident under cold or hunger, and the- fact that the 

 greater part of existence is spent in the sleeping state. 

 The latter is so well known that I have not thought 

 it necessary to make special notes upon the subject, 

 but it, of course, gradually gives way to a form of exist- 

 ence in which sleep has a less and less prominent share. 



There are many reasons why so much time is spent 

 in sleep, and why sleep is so readily induced, to some 

 of which reference has been made in the diary, and to 

 which I shall refer again. 



All parts of an animal's body, owing to nervous or 

 simply protoplasmic connections merely, are in relation 

 to each other, and this must constantly be borne in mind 

 if we would understand psychic as well as physical 

 (somatic) phenomena. The nervous centres, however, 

 constitute a sort of head office, or series of offices, where 

 the various changes of the body are reported, correlated, 

 etc., in all higher animals. In the youngest, though 



