SCIENCE 





Fridat, March 7, 1919 



CONTENTS 

 The Measurement and VtUizatifOn of Brain 

 Power in the Army 



Radium Froduction : Dr. Charles H. Viol . . 



A Statistical Study of the Influenza Epidemic: 

 De. Edwin W. Koch 



228 



Scientific Events : — 



George Francis Atkinson; Medical Sesearch 

 in Australia; The British Guiana. Sesearch 

 Station of the New York Zoological Society. 230 



Scientific Notes and News 232 



University and Educational News '23(> 



Discussion and Correspondence: — 



The Katmai National Monument and the 

 Valley of Ten Thousand Smokes: Professor 

 EoBEET F. Griggs. Hereditary Deficiencies 

 in the Sense of Smell: Professor Charles 

 B. Stockard 236 



Quotations : — 



The Organisation of Sesearch in Great 

 Britain 2 9 



Special Articles: — 



The Selation of the Sector Opening of the 

 Sector Photometer to the Extinction of Co- 

 efficient: De. H. S. Newcomer 241 



The American Association of Variable Star 

 Observers : L. C 243 



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

 review should be sent to The Editor of Science, Gairison-on- 

 Hudson, N. Y. 



THE MEASUREMENT AND UTILIZA- 

 TION OF BRAIN POWER IN 

 THE ARMYi 



History of Psychological Service. — The 

 psychologists of America, of whom upward 

 of two hundred served in the Army or 

 Navy, have rendered conspicuously impor- 

 tant assistance to the government in or- 

 ganizing an efficient fighting machine. 

 Chief among the civilian agencies respon- 

 sible for the development of this new and 

 unexpectedly significant variety of service 

 are the American Psj'chological Association 

 and the Psychology Committee of the Na- 

 tional Research Council. Nearly a score of 

 committees or subcommittees of these or- 

 ganizations functioned during the military 

 emergency. 



Within the Army three principal groups 

 of psychologists appear: one attached to 

 the Office of The Adjutant General of the 

 Armj- (specifically known as the Commit- 

 tee on Classification of Personnel in the 

 Army), another in the Office of the Sur- 

 geon General of the Armj^ (known as the 

 Division of Psychology of the Medical De- 

 partment), and a third in the Division of 

 Military Aeronautics (the Psychological 

 Section of the Medical Research Board). 

 Although the several tasks of these groups 

 of psychologists differed markedly, the pri- 

 mary purpose of each was the increase of 

 military efficiency through improved place- 

 ment with respect alike to occupational and 

 mental classifications. 



1 Published with the approval of the Surgeon- 

 General of the Army, from the Section of Psychol- 

 ogy, OflSce of the Surgeon-General, Major Robert 

 M. Yerkes, Chief. 



