

Vol. LXX. No. 1 JANUARY, 1907 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEN CATTELL 

 CONTENTS 



The Possibilities of Sal ton Sea : Charles Alma Byers ....... 5 



The Sanitation of Air. Konrad Meier 19 



The Jews ; a Study of Eace and Environment. Dr. Maurice Fishberg. 33 



Notes on the Development of the Telephone Service. Fred DeLand . . 48 

 Fo3sil Insects and the Development of the Class Insecta. Anton Hand- 



lirsch 55 



Nature Names in America. Professor Spencer Trotter 63 



Comparative Psychology. Professor C. Judson Herrick 76 



The Value of Science. M. H. Poincare 79 



The Progress of Science : 



The Nobel Prizes ; the Scientific Meetings of Convocation Week ; The Opsonic Index 

 of Wright and Douglas ; Scientific Items 90 



THE SCIENCE PRESS 



LANCASTER, PA. GARRISON, N. Y. 



NEW YOEK: Sub-Station 84 

 Singlk Number, 30 Cents Yearly Subscription, $3.00 



Copyright, 1907, by THE SCIENCE PRESS 



