The Popular Science Monthly 



Entered in the Post Of/ice »n Lancaster, Pa., as second-class matter. 



CONTENT8 OF DECEMBER NUMBER 



Notes on Asiatic Museums. Professor Bashford 

 Dean. 



The Place of Linnaeus in the History of Science. 

 Professor Arthur O. Lovejoy. 



The Problem of Age, Growth and Death. Professor 

 Charles S. Minot. 



The Radioactivity of Ordinary Substances. W. W. 

 Strong. 



The Influence of Diet on Endurance and General 

 Efficiency. Professor Russell H. Chittenden. 



Jean Louis Rudolphe Agassiz. Professor Edward S. 

 Morse. 



The Origin of Slavery Among Ants. Dr. William 

 Morton Wheeler. 



A Trip around Iceland : L. P. Gratacap. 



The Progress of Science : 



The Rise in Prices and the Salaries of Scientific 

 Men ; The Nantucket Maria Mitchell Memorial ; 

 Scientific Items. 



Index to Volume LXXI. 



CONTENTS OF JANUARY NUMBER 



The Institute of France and other Learned Scientific 

 Societies. Dr. Edward F. Williams. 



The Grayling at Caribou Crossing : President David 

 Starr Jordan. 



What is Matter? Dr. S. E. Mezes. 



Farm Tenancy, a Problem in American Agriculture. 

 Professor Homer C. Price. 



Some Recent Transmutations. 

 Baskerville. 



Professor Charles 



The Rule of the Road. Dr. George M. Gould. 



Gold. Theo. F. Van Wagenen. 



How shall we improve our Race? Dr. Gustave 

 Michaud. 



A Trip around Iceland. L. P. Gratacap. 



The Progress of Science : 



The Convocation Week Meeting at Chicago ; A 

 Statue of Joseph Leidy ; Scientific Items. 



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