The Popular Science 



Entered in the Post Offl.ce in Lancaster, Pa., as seeond-class matter. 



CONTENTS OF JUNE NUMBER 



The Total Solar Eclipse of August 30, 1905. Professor 



W. W. Campbell. 

 Copernicus. Dr. Edward S. Holden. 



On the Significance of Characteristic Curves of Corn- 

 position. Dr. Robert E. Moritz. 



The Physiographic Control of the Chattanooga Cam- 

 paigns of the Civil War. Frederick V. Emerson. 



The Value of the Teeth as a means of Identification. 

 Dr. Alton Howard Thompson. 



Immigration. Dr. Allan McLaughlin. 



The Royal Prussian Academy of Science and the Fine 

 Arts. Edward F. Williams. 



The Progress of Science : 



The New Buildings of Cambridge University; 

 Developments in the Respiration Calorimeter; 

 Thorium, Carolinium and Berzelium ; The Insect 

 Enemies of Cotton; Scientific Education in 

 Schools; Scientific Items. 



CONTENTS OF JULY NUMBER 



A Visit to the Japanese Station at Misaki. Professor 

 Bashford Dean. 



Hugo de Vries's Theory of Mutations. Professor A 

 A. W. Hubrecht. 



The Immigrant, Past and Present. Dr. Allan Mc- 

 Laughlin. 



Why is the Human Ear Immobile? Dr. Walter 

 Smith. 



Some Eighteenth Century Evolutionists. Professor 

 Arthur O. Lovejoy. 



Salt. Professor Charles W. Super. 



Walter Reed. Major Walter D. McCaw. 



The Royal Prussian Academy of Science and the 

 Fine Arts. Edward F. Williams. 



Shorter Articles and Discussion : 



Alumna's Children Again. Another Alumna. 



The Progress of Science : 



The Sanitarian and The Popular Science 

 Monthly ; The Jubilee of the University of Wis- 

 consin ; The Chicago School of Education ; Sci- 

 entific Items. 



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