Vol. LXXIII. No. i. OCTOBER, 1908 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEN CATTELL 



CONTENTS 



The Spoliation of the Falls of Niagara. Dr. J. W. Spencer .... 289 



The Industries of Niagara Falls. Raymond H. Arnot 306 



The Classification of Mathematics. Professor G. A. Miller .... 319 

 Academic Aspects of Administration. Professor Joseph Jastrow . .326 

 Something new in ' k Freewill. " George Stuart Fullerton .... 345 

 The Specialist Blight on American Education. James P. Munroe . . 340 

 The Laws of Social Attraction. Professor Simon N. Patten .... 354 

 The Passing of the Sturgeon : A Case of the Unparalleled Extermination of 



a Species. Dr. Walter Sheldon Tower 391 



Foreign Associates of National Societies. Professor E. C. Pickering . 372 

 The Progress of Science : 



Doctorates conferred by American Universities ; Aerial Navigation ; The Photog- 

 raphy of Aquatic Animals in their Natural Environment ; Scientific Items . . . 380 



THE SCIENCE PRESS 



tANCASTER, PA GARRISON, N. T. 



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Single Numbeb, SO Cents Yearly Subscription, $3.00 



Copyright, 1908, by THE SCIENCE PRESS 



