THE PSYCHIC DEVELOPMENT OF YOUNG ANIMALS 20? 



It seemed to me desirable for many reasons that the 

 mongrel should also be studied, accordingly this paper 

 will be devoted to that purpose, and to a comparison 

 between the mongrel and the pure-bred dog, in a 

 manner to harmonise with my general plan of treat- 

 ment of the subject of psychogenesis in the lower 

 animals. 



Diary, 



The puppies under observation belonged to a litter 

 of nine, of which seven were preserved. The dam was a 

 strong, healthy black animal, and the sire was unknown. 

 The dam and puppies were kept under similar con- 

 ditions to those described in my first paper on the Dog, 

 i.e. in a pen on the floor of a separate compartment of 

 the kennel, on which at first there was abundance of 

 good straw, and at a later date sawdust. The puppies 

 were born in December, and artificial heat was 

 maintained in the kennel constantly, so that the 

 animals were always comfortable. The dam was well 

 fed, and otherwise properly cared for throughout, and 

 from beginning to end was perfectly well, and able to 

 nurse her puppies in an entirely satisfactory manner. 



1st day. Vigour of puppies shown by a strong voice, 

 somewhat between a growl and a bark. 



They respond to a prick or punch and to a hot body, 

 but not so quickly. Oil of wormseed placed near the 

 nose causes a sniffing; pure carbolic acid causes the 

 face to be distorted ; blistering fluid leads to protrusion 

 of the tongue ; and tincture of iodine to sniffing. 



When soup is similarly placed before the nose there 

 is TIO evidence of smell. 



Solutions of salt and of sugar, also cow's milk, are 

 presented at different times. Certain conclusions 

 cannot be drawn. The brush on which the solution 

 of sugar is presented, is sucked vigorously, however. 



The puppies will not crawl off a table, etc, 



