The Popular Science Monthly 



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



CONTENTS OF THE 8EPTEMBER NUMBER 



The Bureau of Standards. Professor Henky 8. Cab- 



hart. 

 On the History of Internal Medicine. Dr. John 



Benjamin Nichols. 

 Science and Social Progress. Dr. Frederick A. 



Bushee. 

 Attempts to explain Gravitation. Wilson C. Morris. 

 The Purpose and Some Principles of Systematic 



Zoology. Hubert Lyman Clark. 

 The Narrowing Circle of the Animal Kingdom. 



Thos. D. Eason. 

 Food Preparation and Its Relation to the Develop- 

 ment of Efficient Personality in the Home. 



Laura Clarke Rockwood. 

 The Constitutional Conservatism of Women. Dr. 



Otto Charles Glaser. 

 Floating Islands. Sidney Powers. 

 The Progress of Science : Charles Otis Whitman; The 



American Geographical Society ; Scientific Items 



CONTENT8 OF THE OOTOBER NUMBER 



Genetics. W. Bateson. 



Civilization and Vegetation. Professor George J. 

 Peirce. 



English as an International Language. Professor 

 Albert Leon Guerard. 



Perfect Flowers in Maize. Professor E. G. Mont- 

 gomery. 



The Sounds " ch " and " J." Winifred Scripture. 



The Relative Importance of Mental Pain. Dr. 

 Smith Baker. 



Language Study and Language Psychology. Pro- 

 fessor E. W. Fay. 



Agriculture in the High School: Josiah Main. 



The Laws of Environmental Influence. Professor 

 Simon N. Patten. 



The Race Fiber of the Chinese. Professor Edward 

 A. Ross. 



The Progress of Science: 



The Langley Memoir on Mechanical Flight ; Ad- 

 dress of the President of the British Association ; 

 The Director of the American Museum of Natural 

 History ; Scientific Items. 



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