The Popular Science Monthly 



Entered in the Post Of/Use in Lancaster, Pa., as second-class matter. 



CONTENTS OF JUNE NUMBER 



The Movement toward " Physiological Psychology." 

 Professor R. M. Wenley. 



Coincident Activities of the Earth and the Sun. Dr. 

 Ellsworth Huntington. 



Springs as a Geographic Influence of Humid Climates. 



Professor Frank Carney. 

 Johannes Miiller. Dr. Philip B. Hadley. 



The Gensis of Ores in the Light of Modern Theory. 

 Horace V. Winchell. 



The Relation between Recent Industrial Progress and 

 Educational Advance. Dr. Frank T. Carlton. 



The Dawn of Quadrupeds in North America. Dr. 

 Roy L. Moodie. 



The Progress of Science : 



The National Academy of Sciences and the 

 American Philosophical Society ; Dedication of 

 the New Buildings of the College of the City of 

 New York ; Lewis Henry Morgan ; The Sargent 

 Anniversary Medal ; Scientific Items. 



index to Volume LXXTI. 



CONTENTS OF JULY NUMBER 



Soil Wastage. Professor Thomas Chrowder 

 Chamberlin. 



The Mississippi River Problem. Dr. Walter Shel- 

 don Tower. 



The High School Course. President David Starr 

 Jordan. 



Count Rumford. John Candee Dean. 



Hypothesis of Radiant Matter. Dr. Morris Loeb. 



The New Philosophy called Pragmatism. Professor 

 H. Heath Bawden. 



The Movement towards "Physiological Psychology." 

 Professor R. M. Wenley. 



A Physiological Problem — Enzymes. Dr. Orville 

 Harry Brown. 



Needed— A System of Aquatic Farming. Professor 

 Herbert Osborn 



The Progress of Science : 



Administrative Methods in American Univer- 

 sities; The Boyden Department of the Harvard 

 College Observatory ; The Hanover Meeting of 

 the American Association ; Scientific Items. 



The MONTHLY will be sent to new subscribers for six months for One Dollar 

 SUBSCRIPTION ORDER 



To THE SCIENCE PRESS, 



Publishers of THE POPULAR SCIENCE MONTHLY, 

 Sub-Station 84, New York City. 



Please find enclosed check or money order for three dollars, subscrip- 

 tion to THE POPULAR SCIENCE MONTHLY for one year, begin- 

 ning August, 1908. 



Please find enclosed from a new subscriber one dollar (sent at your 

 risk), subscription for six months to THE POPULAR SCIENCE 

 MONTHLY, beginning August, 1908. 



Name _„ _„ „ .._ 



Address.. 



Single Numbers 30 Cents Yearly Subscription, $3,00 



THE SCIENCE PRESS 



GARRISON-ON-HUDSON, N. Y. 41 NORTH QUEEN ST., LANCASTER, PA. 



Sub-Station 84: NEW YORK 



press of tmc new era phhh»« oomc-ht 



