The Popular Science Monthly 



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



CONTENTS OF SEPTEMBER NUMBER 



The Value of Science. M. H. PoincarS:. 

 Discontinuous Variation in Pedigree-cultures. 



DR 



D. T. MacDovgal. 



America and Seismological Research. Dr. William 

 Herbert Hobbs. 



Immuuity 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 Bureau of Education ; Professor Mendeleeff; 

 Appropriations for the Department of Agricul- 

 ture ; The Will of Alfred Beit ; Scientific Items. 



CONTENT8 OF OCTOBER NUMBER 



The Earthquake Rift of 1906. President David 

 Starr Jordan. 



The Value of Science. M. H. Poincarb 

 Francis Bacon and the Modern University. Pro- 

 fessor Edward O. Sisson. 



Briticisms versus Americanisms. Professor Edwin 

 W. Bowen. 



Difficult Boys. Dr. J. Madison Taylor. 



Genius. Dr. Robert Morris Ogden. 



The Birth of the Idea of Spirit in Greek Thought. 

 President Mary Mills Patrick. 



The Scientific Aspects of Luther Burbank's Work. 

 Professor Vernon L. Kellogg. 



Discussion and Correspondence : 



The Effects of Immigration on Homicide. Pro- 

 fessor Morris Loeb. 



The Progress of Scien ce : 



The British Medical Association and the Univer- 

 sity of Toronto ; The National Pure Food Law ; 

 Scientific Items. 



£S~ The MONTHLY will be sent to new subscribers for six months for One Dollar 



SUBSCRIPTION ORDER 



To THE SCIENCE PRESS, 



Publishers of THE POPULAR SCIENCE MONTHLY, 

 Sub-Station 8^., New York City. 



Please find enclosed check or money order for three dollars, subscrip- 

 tion to THE POPULAR SCIENCE MONTHLY for one year, begin- 

 ning November, 1906. 



Please find enclosed from a new subscriber one dollar (sent at your 

 risk), subscription for six months to THE POPULAR SCIENCE 

 MONTHLY, beginning November, 1906. 



Name _ — 



Address.. 



Single Numbers 30 Cents 



Yearly Subscription, $3.00 



THE SCIENCE PRESS 



GARRISON-ON-HUDSON, N. Y. 41 NORTH QUEEN ST., LANCASTER, PA. 



Sub-Station 84: NEW YORK 



Pnaaa or the n«w ■■* printino company 



