Vol. LSXIV. No. 3. MARCH, 1909 



THE 



POPULAR SCIENCE 

 MONTHLY 



EDITED BY J. McKEEM CATTELL 



CONTENTS 



The Electric Operation of Steam Eailways. Professor J. B. Whitehead 209 



The Influence of Eadium Eays on a Few Life Processes of Plants. Pro- 

 fessor C. Stuart Gager 222 



The Work of Boards of Health. Dr. George A. Soper 233 



A Biographical History of Botany at St. Lonis, Missouri. Dr. Perlbt 



Spaulding 240 



Fire's Havoc a Senseless Waste. F. W. Fitzpatrick 259 



The World's Annual Metal Crop. Theo. F. Van Wagenen .... 271 



Science and Morality. Professor Albert P. Mathews , . . . . . 284 



Steps in the Evolution of Eeligion. Professor Frank Sargent Hoffman 290 



The American Public School. James P. Munroe ........ 300 



The Progress of Science : 



Harvard University and the Massachusetts Institute of Technology ; 

 English Vital Statistics ; Albert Gaudry ; Scientific Items .... 308 



THE SCIENCE PEESS 



LANCASTER, PA. GARRISON, N. Y. 



NEW YOEK : Sub-Station 84 

 Single Ntjmbeb, 30 Cents Yeakly Subsceiption, $3.00 



Copyright, 1908, by THE SCIENCE PRESS 



