The Popular Science Monthly 



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



CONTENTS OF AUGUST NUMBER 



The Investigation of the San Francisco Earthquake- 

 G. K. Gilbert. 



Seismograph and Magnetograph Records of the San 

 Francisco Earthquake. Dr.L.A. Bauer. 



Reminiscences of Yukon Exploration. William 

 Healey Dall. 



Fact and Fable in Animal Psychology. Professor 

 Joseph Jastrow. 



The World State. Professor C. C. Eckhardt. 



The Measure of Progress. Dr. Edward S. Holden. 



The Effects of Immigration on Homicide in Ameri- 

 can Cities. Maynaed Shipley. 



The Study of Variable Stars, Professor Solon I 

 Bailev. 



The Progress of Science : 



Cornell University and the Summer Meeting of 

 the American Association; Legislation and 

 Science ; Scientific Items. 



CONTENTS OF SEPTEMBER NUMBER 



The Value of Science. M. H. Poincare. 



Discontinuous Variation in Pedigree-cultures. DR 

 D. T. MacDougal. 



America and Seismological Research. Dr. William 

 Herbert Hobbs. 



Immunity in Tuberculosis. Dr. Simon Flexner. 



The Protection of the Alluvial Basin of Mississippi. 

 Robert Marshall Brown. 



The Jews, a Study of Race Environment. Maurice 

 Fishberg. 



The Development of Mechanics. Dr. S. E. Slocum. 



Diamonds and Carbons in Brazil. H. W. Furniss. 



Shorter Articles: 

 Sigma Xi : M. B. 



The Progress of Science : 



The Bureau of Education ; Professor Mendeleeff; 

 Appropriations for the Department of Agricul- 

 ture ; The Will of Alfred Beit ; Scientific Items. 



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