The Popular Science Monthly 



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



CONTENTS OF JULY NUMBER 



The Relations of Embryology to Medical Progress. 

 Professor Charles Sedgwick Minot. 



The Largest American Collection of Meteorites. L. 

 P. Gratacap. 



The Plane of Ether. President David Starr 

 Jordan. 



Are the Elements Transmutable, the Atoms Divisible 

 and Forms of Matter but Modes of Motion ? Pro- 

 fessor S. Lawrence Bigelow. 



Pure Food Legislation. Robert McD. Allen. 



Wooden Flowers. Dr. Orville Paul Phillips. 



The Geological Prelude to the San Francisco Earth- 

 quake. George H. Ashley. 



Our Greatest Earthquakes. Myron Leslie Fuller. 



Shorter Articles: 



The Typhoid Fever Epidemic at Palo Alto. 

 Edyth V. Matzke. 



The Progress 1 of Science : 



The American Association for the Advancement 

 of Science ; The Boston Meeting of the American 

 Medical Association ; The New Harvard Medical 

 School ; Mr. Adams on the American College ; 

 The Causes of Death ; Scientific Items. 



CONTENT8 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. Maynard Shipley. 



The Study of Variable Stars, Professor Solon I. 

 Bailey. 



The Progress of Science : 



Cornell University and the Summer Meeting of 

 the American Association; Legislation and 

 Science ; Scientific Items. 



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