Vol. LXVIII. No. 5 MAY, 1906 



THE 



POPULAR SCIENC 

 MONTHLY. 



EDITED BY J. McKEEN CATTELL 

 CONTENTS 



Watkins Glen and Other Gorges of the Finger Lake Region of Central 



New York. Professor Ralph S. Tarr 887 



A League of Peace. Andrew Carnegie 398 



The Body's Utilization of Fat Dr. Frank S. Mathews 425 



National Control of Introduced Insect Pests. Professor E. Dwight 

 Sanderson 431 



Individual Adaptation to Environment. Professor Joseph Hershey 



Bair 440 



The Disease and the Remedy. Dr. Alfred E. P. Rockwell .... 446 



The Psychology of Yellow. Havelock Ellis 456 



Bird Photography in Norway. Dr. R. W. Shufeldt 4C>4 



The Progress of Science : 



The Niagara Problem under Legislation ; The Report of the President of Harvard 

 University ; The Growth of the State Universities of the Central West ; The Tomb 

 of James Smithson ; Scientific Items 473 



THE SCIENCE PPvESS 



LANCASTER, PA. GARRISON, N. Y. 



NEW YORK : Sub-Station 84 

 Single Number, 30 Cents Yearly Subscription, $3.00 



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