The Popular Science Monthly 



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



CONTENTS OF JUNE NUMBER 



The Tides and their Causes. Rollin Arthur Harris. 



Facts concerning the Determination and Inheritance of 

 Sex. Professor H. E. Jordan. 



Josiah Willard.Gibbs and his relation to Modern Science. 

 Dr. Fielding H. Garrison. 



Suggestions from Two Ca3es of Cerebral Surgery with- 

 out Anesthetics. Professor George Trumbull 

 Ladd. 



Hysteria as an Asset. Dr. Pearce Bailey. 

 JTotes on Certain Philosophies of the Day. Professor 

 Alexander F. Chamberlain. 



Formative Influences. Professor G. J. Pearce. 

 Training College Teachers. Dr. W. B. Pitkin. 

 Okefinokee Swamp. Roland M. Harper. 

 The Progress of Science : 



Scientific and Educational Meetings; Justus yon 



Liebig ; Scientific Items. 



Index to Volume LXXIV. 



CONTENTS OF JULY NUMBER 



Natural Resistance to Infectious Diseases and Its Rein- 

 forcement. Dr. Simon Flexner. 



Some Practical Aspects of Gyrostatic Action. Professor 

 W. S. Franklin. 



Josiah Willard Gibbs and His Relation to Modern Science. 



Fielding H. Garrison. 

 A Revolution in Dentistry. Dr. Richard Cole Newton. 



The Origin of the Nervous System and its Appropriation 

 of Effectors. Professor G. H. Parker. 



The Preparation for the Study of Medicine. Dr. Fred- 

 eric T Lewis. 



Darwinism in the Theory of Social Evolution. Professor 

 Franklin H. Giddings. 



Darwin's Influence upon Philosophy. Professor John 



Dewey. 

 The Progress of Science : 



The College and the Student ; The New Buildings of 



the University of Pittsburgh ; The Percy Sladen 



Memorial Fund ; Scientific Items. 





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