Vol. LXXIII. No. 1. JULY, 1908 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEJf CATTELL 

 CONTENTS 



Soil Wastage. Professor Thomas Chrowder Chamberlin .... 5 



The Mississippi River Problem. Dr. Walter Sheldon Tower ... 13 



The High School Course. President David Starr Jordan .... 20 



Count Rumford. John Candee Dean 32 



Hypothesis of Radiant Matter. Dr. Morris Loeb 52 



The New Philosophy called Pragmatism. Professor H. Heath Bawden 61 

 The Movement towards u Physiological Psychology. ' ' Professor R. M. 



Wenley 73 



A Physiological Problem — Enzymes. Dr. Orville Harry Brown . . 81 



Needed — A System of Aquatic Farming. Professor Herbert Osborn . 85 



The Progress of Science : 



Administrative Methods in American Universities ; The Boyden Department of the 

 Harvard College Observatory ; The Hanover Meeting of the American Association ; 



Scientific Items 92 



THE SCIENCE PRESS 



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Copyright, 1908, by THE SCIENCE PRESS 



