282 ANIMAL INTELLIGENCE 



Comparative Psychology will, I fear, continue to suffer 

 till those who assume to deal with it authoritatively 

 spend more time among animals and less in their studies. 

 A few observations or experiments do not give them 

 insight into the psychic nature of animals, and it were 

 well, I venture to think, if the qualifications of the 

 comparative psychologist, as set forth by Dr Groos, in 

 the preface to his admirable work, "Die Spiele der 

 Thiere," were thoroughly known and believed in by all 

 psychologists. WESLEY MILLS. 



M'GiLL UNIVERSITY, MONTREAL. 



NEWLY-HATCHED CHICKENS INSTINCTIVELY DRINK. 



To THE EDITOR OF Science. In the issue of 6th 

 March 1896, appears an excellent and accurate note by 

 Wesley Mills, calling attention to an error of state- 

 ment made by Prof. Morgan in Science (issue of 14th 

 February 1896). 



With due deference to " The Writer of the Note," who 

 follows Mr Mills, and who says that Morgan's argu- 

 ment is satisfactory that " a chick might die of thirst 

 in the presence of water " I desire to say that this is 

 not my understanding of the case. I have been, during 

 the last thirty-five years, a breeder of fowls as an 

 amateur, and I have given the hatching and rearing of 

 chickens close and continued attention. I have re- 

 peatedly placed a shallow water-dish before the bars of 

 the coop in which a newly -hatched brood had been placed 

 the day previous, taken there directly from the hatching 

 nest, and in which they never had food or water 



