The Popular Science Monthly 



Sntered in the Pott Office in Lancaster, Pa., at second-class matter. 



CONTENTS OF MARCH NUMBER 

 A Defence of Pragmatism. Professor William James. 



The Century Plant and Some Other Plants of the Dry 

 Country : Professor William Trelease. 



Notes on the Development of Telephone Service. 

 Fred DeLand. 



Denatured Alcohol. 



LOW. 



Professor S. Lawrence Bige- 



Spelling Reform and .the Conservation of Energy. 

 Professor W. Le Conte Stevens. 



Fritz Schaudinn. Professor Thos. H. Montgomery. 



The Value of Science. M. H. Poinoare. 



The Progress of Science : 



The Smithsonian Institution and its Secretary ; 

 The Report of the President of the Carnegie Insti- 

 tution ; Mr. Rockefeller's Gift to the Board of Ed- 

 ucation ; Scientific Items. 



CONTENTS OF APRIL NUMBER 



Pioneers of Science in America: 



Benjamin Franklin: Dr. S. Weir Mitchell. Alex- 

 ander von Humboldt: Baron Speck von Sternberg. 

 John James Audubon: Dr. C. Hart Merriam. 

 John Torrey: Dr. N. L. Britton. Joseph Henry: 

 Dr. Robert S. Woodward. Louis Agassiz: Trie 

 Rev. Edward Everett Hale. James Dwight Dana: 

 President Arthur T. Hadley. Spencer Fullerton 

 Baird: Dr. Hugh M. Smith. Joseph Leidv: Pro- 

 fessor William Keith Brooks. Edward Drinker 

 Cope: Professor Henry Fairfield Osborn. 



Notes on Development of Telephone Service. Fred 

 DeLand. 



The General Economic Importance of Mosquitoes : 

 Professor John B. Smith. 



How shall the Destructive Tendencies of Modern Life 

 be met and overcome? : Dr. Richard Cole 

 Newton. 



The Value of Science. Professor M. H. Poincare. 



A Defence of Pragmatism: Professor William James. 



Civology— A Suggestion: Professor Lindley M. 

 Keasbey. 



The Reclamation of the North Platte Valley: W. S. 



CCULTER. 



Shorter Articles: 



A Vocabulary Test: E. H. Babbitt. 



The Progress of Science : 



A National Department of Health; The Research 

 Departments of the Carnegie Institution; The 

 Sage Foundation; The Problems of Astronomy; 

 Scientific Items. 



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