V«. LXX. No. 3 MARCH, 1907 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEW CATTELL 



CONTENTS 



A Defence of Pragmatism. Professor William James 193 



The Century Plant and Some Other Plants of the Dry Country : Professor 



William Trelease 207 



Notes on the Development of Telephone Service. Fred DeLand . . . 229 



Denatured Alcohol. Professor S. Lawrence Bigelow 243 



Spelling Keform and the Conservation of Energy. Professor W. Le 



Conte Stevens 265 



Fritz Schaudinn. Professor Thos. H. Montgomery 274 



The Value of Science. M. H. Poincare 279 



The Progress of Science: 



The Smithsonian Institution and its Secretary ; The Report of the President of the 

 . Carnegie Institution ; Mr. Rockefeller's Gift to the Board of Education; Scientific Items 285 



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Copyright, 1907, bt THE SCIENCE PRESS 



