1896.] Psychology. 345 



the construction of the mechanism of new habits from tissues capable 

 of reconstruction or of modification, a quality which resides very 

 probably in brain tissue, or at least certainly has resided in it at various 

 stages of organic evolution, when new "selections through pleasure, 

 pain, experience, association, etc.," were made ; otherwise the selection 

 would have been impossible. This is the history of all the other tissues, 

 and why not of brain tissue? Though Prof. Baldwin denies the neces- 

 sity of the Lamarckian Factor, he admits it in this doctrine of selec- 

 tion ; and his denial of inheritance, only covers the case of physcho- 

 logical sports, as above pointed out. Hence he both admits and 

 denies both Lamarckian and Weismannism. 



Weismannism has recently struck the physchological camp, and in 

 Prof. Baldwin and in Mr. Benjamin Kidd, we see some of its recent 

 effects. But since the biologists have generally repudiated Weismann- 

 ism, the evolutionary physchologists must try and get along withdul it. 

 Nevertheless, as above remarked, Prof. Baldwin's " Social Heredity " 

 is a real factor, especially in human evolution ; but as it is not heredity,. 

 I think it should have a new name, which shall, be less confusing. 

 E. D. Cope. 



Psychologic Data Wanted. — For purpose of extended compar- 

 ison I wish data as to habit, instinct or intelligence in animals, above 

 all, minor and trifling ones not in the books, useless or detrimental ones, 

 and the particular breed, species or genus showing each. Purring, 

 licking, washing face, kneading objects with fore-paws, humping back, 

 and "worrying" captured prey (like the cat), baying (at moon or 

 otherwise) ; urination and defecation habits (eating, covering up, etc.) ; 

 disposition of feces and shells in nest; rolling on carrion ; cackling (or 

 other disturbance) after laying; eating " afterbirth " or young; sexual 

 habits ; transporting eggs or young ; nest-sharing ; hunting partner- 

 ships or sin; amission of 

 8 ; rearing young of other species with resulting modification 

 of instinct ; feigning death ; suicide ; " fascination ; " are examples. 

 Circular of information will be sent and full credit given for data used, 

 or sender's name will be confidential, as preferred. 



Answer as fully as possible, always stating age, sex, place, date («r 

 season), species, breed, and whether personally observed. 



R. R. GuftLEY, M. D. 



Clark University, Worcester, Mass. 



