Vol. LXV. No. 3 JULY, 1904 



THE 



POPULAR SCIENCE 



t 



MONTHLY 



EDITED BY J. McKEEJV CATTELL 



CO NTKNTS 



A' Visit to the Japanese Zoological Station at Misaki. Professor 

 Bashford Dean 195 



Hugo de Vries's Theory of Mutations. Professor A. A. W. Hubrecht . 205 



The Immigrant, Past and Present. Dr. Allan McLaughlin .... 224 



Why is the Human Ear Immobile? Dr. Walter Smith 228 



Some Eighteenth Century Evolutionists. Professor Arthur Lovejoy 238 



Salt. Professor Charles W. Super 252 



Walter Reed. Major Walter D. McCaw 262 



The Royal Prussian Academy of Science and the Fine Arts. Edward F. 

 Williams 269 



Shorter Articles and Discussion : 



Alumna's Children Again : Another Alumna 279 



The Progress of Science : 



The Sanitarian and The Popular Science Monthly ; The Jubilee of the 

 University of Wisconsin ; The Chicago School of Education ; Scientific Items . . . 282 



THE SCIENCE PRESS 



LANCASTER, PA. GARRISON, N. T. 



NEW YORK : Sub-Station 84 

 Single Number, 30 Cents Yearly Subscription, $3.0* 



Copyright, 1904, BY THE SCIENCB PRESS 



