Vol. LXXXIV, No. 1 JANUARY, 1914 



- 



THE 



POPULAR SCIENCE 



MONTHLY M& 



EDITED BY J. McKEEN GATTELl^ l * * . _ P 



Mas*' 



CONTENTS 



The Mechanism of Heredity as indicated by the Inheritance of Linked 



Characters. Professor T. H. Morgan 5 



The Present Status of Cancer Research. Dr. Leo Loeb . . . .17 



Psychology : Science or Technology. E. B. Titcheneb . . . .39 



The Illinois System of Permanent Fertility. Professor Cybil G. Hopkins 52 



Chabaneau : an Early Worker on Platinum. Professor Jas. Lewis 

 Howe 64 



The Biologist's Problem. Professor T. D. A. Cockebell . . .71 



A Comparison of "White and Colored Children measured by the Binet 

 Scale of Intelligence. Dr. Josiah Mobse 75 



The Struggle for Equality in the United States. Professor Charles F. 



Emebick 80 



The Democratic Organization of a State University. Professor Joseph 

 K. Habt 91 



The Progress of Science : 



The Anniversary Meeting of the Eoyal Sooiety ; A Celestial Sphere in a Natural 

 History Museum ; Scientific Items . . ..... 101 



THE SCIENCE PRESS 



LANCASTER, PA. GARRISON, N. Y. 



NEW YOKE : Sub-Station 84 

 Single Number, 30 Cents Yearly Subscription, $3.00 



Copyright, 1912, by THE SCIENCE PRESS 



