The Popular Science Monthly 



Entered in the Post Office in Lancaster, Pa., as second-class matter. 



CONTENTS OF DECEMBER NUMBER 



The Bogoslofs : President David Starr Jordan and 



George Archibald Clark. 

 The Development of the Telephone Service. Fred 



DeLand. 

 The Jews : A Study of Race and Environment. Dr. 



Maurice Fishberg. 

 Physical Degeneracy or Race Suicide ? Sidney Webb 

 Waterway Defences of the Atlantic Coast. William 



S. Rose. 

 The Simplification of French Spelling. Professo 1 " 



Brander Matthews. 

 The Value of Science. Professor H. Poincare. 

 Vesuvius in the Early Middle Ages : Dr. Charles R. 



Eastman. 

 The Progress of Science : 



The New Engineering Building of the University 



of Pennsylvania; The Harveian Oration, Scientific 



Items. 



CONTENTS OF JANUARY NUMBER 



The Possibilities of Sal ton Sea : Charles Alma Byers. 



The Sanitation of Air. Konrad Meier. 



The Jews : a Study of Race and Environment. Dr. 

 Maurice Fishberg. 



Notes on the Development of the Telephone Service. 

 Fred DeLand. 



Fossil Insects and the Development of the Class 

 Insecta. Anton Handlirsch. 



Nature Names in America. Professor SrENCER 

 Trotter. 



Comparative Psychology. Professor C. Judson Her- 

 ri ck. 



The Value of Science. M. H. Poincabe. 



The Progress of Science : 



The Nobel Prizes ; the Scientific Meetings of Con- 

 vocation Week ; The Opsonic Index of Wright 

 and Douglas ; Scientific Items. 



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