Srcrion IV., 1895. [191] Trans. R. S. C. 
VIIL.—The Psychic Development of Young Animals and its Physical 
Correlation. 
By Weszey Miuts, MA. MD. F.R.S.C. 
Professor of Physiology in McGill University, Montreal. 
(Read May 16, 1895.) 
Ii.— Tae Cat. 
The present paper is a continuation of that series on the psychic 
development of animals, or psychogenesis, the first part of which appeared 
in the Transactions of the Royal Society for 1894. 
As the desirability, purpose and scope of such investigations have 
been set forth in the paper on the dog, just referred to, no lengthened 
introduction will be necessary in the present instance. 
The records were made under more favourable circumstances, and are 
more extensive and complete than those concerning any other animal 
that I have up to the present been able to study. 
The kitten seems to me to have been one of more than ordinary 
interest, and though the observations extend over 135 days, had the 
animal not disappeared, I should have continued my records. 
The diary will tell to each reader its own story, and I shall, therefore, 
make the observations upon itsomewhat brief and suggestive, rather than 
attempt to exhaust the lessons it teaches, and as this paper will be followed 
by one in which the dog and the cat will be compared, there is additional 
reason for making the notes upon the records, and the part of the paper 
devoted to conclusions from the observations briefer than they might 
otherwise be. 
The readers who peruse the first of the series, and the subsequent 
papers, will naturally derive more profit—whatever that may be—from 
the present paper. 
Diary. 
The following notes were made on a litter of kittens, the parents of 
which were ordinary domestic cats. 
They were born July 29th, 1894, and came first under my personal 
observation two days later. 
2nd day. Eyes and ears closed. No evidence of hearing on sounding 
a shrill dog whistle, ete. 
Rubbed hands well on a St. Bernard and a beagle dog and placed 
them near the nose of one of the kittens. It sniffed and became uneasy 
but did not hiss. 
