SCIENCE 



Friday, May 1, 1914 



CONTENTS 

 The Study of Suman Behavior: Peopessob 

 EOBEBT M. Yerkes 625 



Sweating the Scientist 633 



Effect on the Propagation of Electric Waves 

 of the Total Eclipse of the Sun 638 



The Napier Tercentenary Celebration: C. G. 

 Knott 639 



The American Association for the Advance- 

 ment of Science 640 



Scientific Notes and News 641 



University and Educational News 644 



Discussion and Correspondence: — 

 Interpretations of the Anomalies of Gravity: 

 Dr. J. W. Spencer. Heads of Departments : 

 Pkoeessoe r. L. Washburn 645 



Scientific BooTcs: — 

 De Vries 's Gruppenweise Arfbildung : Dr. 

 Bradley M. Davis. Mo-nographia Uredi- 

 nearum: Frank D. Kern. Todd on the 

 Primitive Family: Elsie Clews Parsons . . 649 



Notes cm the Sea Elephant: Dr. Rot Chap- 

 man Andrews 656 



Special Articles: — 

 Cards as Psychological Apparatus: Dr. 

 Linus W. Kjline and Chester E. Kellogg. 657 



Societies and Academies: — 



The Illinois Academy of Science: Pro- 

 fessor Edgar N. Teanseau. The Biological 

 Society of Washington: D. E. Lantz 659 



MSS. intended for publiciition and books, etc.. intended for 

 rSTiew should be sent to Professor J. McKeen C»ttell, Garrison- 

 On-Hudson, N. Y 



THE STUDY OF HUMAN BEHAVIOBi- 

 My part in this symposium must be that 

 of the comparative psychologist who, while 

 professionally engaged in the experimental 

 study of the behavior of lower organisms, 

 is keenlj^ interested in human behavior and 

 in the development of methods by which it 

 may be profitably studied. I propose, in 

 this discussion, to try to bring some of the 

 experiences of the student of the behavior 

 of animals to bear upon the problems which 

 the eugenic investigator meets. Especially 

 I shall attempt to indicate the necessity 

 for an analytic procedure on the basis of 

 carefully wrought out methods of experi- 

 mental control and observation, and the 

 thorough-going study of the components of 

 human responses to situations rather than 

 of complexes such as are actually pre- 

 sented to us in the behavior of human 

 beings. 



Human behavior is only a part, albeit a 

 most important part, of the materials of the 

 general science of organic behavior. It 

 presents essentially the same kinds of prob- 

 lems as does the behavior of any other 

 mammal ; and it must be studied by meth- 

 ods similar to, if not actually identical 

 with, those employed by the student of 

 infra-human behavior. I should be in- 



1 The substance of the writer's contribution to a 

 symposium on the Study of Human Behavior at 

 the Conference on Eugenics, held at Cold Spring 

 Harbor, Long Island, June 19 and 20, 1913. Be- 

 ing Contributions from the Psychopathic Hospital, 

 Boston, Massachusetts, No. 25 (1913. 25): previ- 

 ous Contribution, P. H. Contributions 1913. 24, 

 was Robert M. Yerkes: "Comparative Psychology: 

 A Question of Definitions. ' ' The Journal of Phi- 

 losophy, Psychology and Scientific Methods, Oc- 

 tober 9, 1913. 



