Vol. LXXII. No. 1. JANUARY, 1908 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEX CATTELL 



CONTENTS 



The Institute of France and other Learned Scientific Societies. Dr. Ed- 

 ward F. Williams 5 



The Grayling at Caribou Crossing : President David Starr Jordan. . 23 



What is Matter? Dr. S. E. Mezes 28 



Farm Tenancy, a Problem in American Agriculture. Professor Homer 



C. Price 40 



Some Recent Transmutations. Professor Charles Baskerville. . . 46 



The Rule of the Road. Dr. George M. Gould 52 



Gold. H. F. Wagenen 65 



How shall we improve our Race ? Dr. Gustave Michatjd 75 



A Trip around Iceland. L. P. Gratacap 79 



The Progress of Science : 



The Convocation Week Meeting at Chicago ; A Statue of Joseph Leidy ; Scientific 

 Items 91 



THE SCIENCE PRESS 



LANCASTER, PA GARRISON, N. Y. 



NEW YOKE: Sub-Station 84 



Single Numbeb, 30 Cents Yeably Subscription, $3.00 



Copyright, i90cS, by THE SCIENCE PRESS 



