The Popular Science Monthly 



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



CONTENTS OF DECEMBER NUMBER 



The Planet Venus. Dr. Percival Lowell. 



The Argument for Organic Evolution before the "Origin 

 of Species." Professor Arthur O. Love joy. 



An Arraignment of the Theories of Mimicry and Warning 



Colors. Abbott H. Thayer. 

 What Pragmatism is, as I understand it. Thomas 



Mitchell Shackleford. 



Immigration and the Future American Kace. Dr. Al- 

 bert Alleman. 



Environment and Productive Scholarship. Dr. W. J. 

 Humphreys. 



Medieval Creation Myths. Professor B. K. Emerson. 



The Progress of Science : 



The Medical School and the College ; Kakichi Mitsu- 

 kuri, 1858-1909 ; The Spruce Tree House of the Mesa 

 Verde National Park ; Scientific Items. 



Index to Volume LXXV. 



CONTENTS OF JANUARY NUMBER 



Halley's Comet. Professor C. L. Doolittle. 



The Darwin Celebration at Cambridge. Professor T. 



D. A. COCKERELL. 



Darwin's Probable Place in Future Biology. Pro- 

 fessor William E. Ritter. 



The Evolution of Man and Its Control. Eoswell H; 

 Johnson. 



College Diversions. Professor John J. Stevenson. 



The Theory of Style. Professor Walter Libby. 



The Transmission of Disease by Money. A. Ceessy 

 Morrison. 



How could an Explorer find the P«le? Professor 

 Harry Fielding Reid. 



The Progress of Science : 



Anton Dohrn ; The Convocation Week Meetings 

 at Boston ; The Non-Magnetic Yacht "Carnegie" ; 

 Scientific Items. 



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