The Popular Science Monthly 



Bntered in the Post OJlcc m Lcmoaater, Fa., as seoond-class matter. 



CONTENTS OF FEBRUARY NUMBER 



The National Exposition at Rio de Janeiro, Professor 



Robert DeC. Ward. 

 A Biographical History of Botany at St. Louis, Missouri, 



Dr. Pseley Spaulding. 

 The Latest Calabrian Disaster. Professor Wm. H. Hobbs. 

 Jefferson Davis's Camel Experiment. Professor Walter 



L. Fleming. 

 Railroads and the Smoke Nuisance. Clinton Rogers 



Woodruff. 

 Account of a Trip in Southernmost Japan, with Early 



Records of Its Discovery. Robert Van Vleck 



Anderson, 

 An American Contribution to the History of the Phys- 

 iology of Digestion. Professor Lafayette B. 



Mendel. 

 The Instruments and Methods of Research, Dr. L. A. 



Bauer, 

 The Progress of Science : 



The Scientific Meetings at Baltimore; The Report 



of the Secretary of Agriculture ; Scientific Items, 



CONTENTS OF MARCH NUMBER 



The Electric iOperation of Steam Railways. Professor 

 J. B. Whitehead. 



The Influence of Radium Rays on a Few Life Processes 

 of Plants. Professor C. Stuaet Gager. 



The Work of Boards of Health, Dr. George P. Sopeb. 



A Biographical History of Botany at St, Louis, Missouri. 

 Dr. Peeley Spaulding. 



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



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

 Wagenen, 



Science and Morality. Professor Albert P, Mathews. 



Steps in the Evolution of Religion. Professor Frank 

 Sargent Hoffman. 



The American Public School. James P. Munroe, 



The Progress of Science : 



Harvard University and the Massachusetts Institute 

 of Technology ; English Vital Statistics ; Albert 

 Gaudry ; Scientific Items. 



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