Vol. LXIX. No. 2 AUGUST, 1906
THE
POPULAR SCIENCE MONTHLY.
EDITED BY J. McKEEK CATTELL
CONTENTS
The Investigation of the San Francisco Earthquake. G. K. Gilbert . 97
Seismograph and Magnetograph Records of the San Francisco Earthquake.
Dr. L. A. Bauer 116
Reminiscences of Yukon Exploration. William Healey Dall . . . 128
Fact and Fable in Animal Psychology. Professor Joseph Jastrow . .138
The World State. Professor C. C. Eckhardt 147
The Measure of Progress. Dr. Edward S. Holden 155
The Effects of Immigration on Homicide in American Cities. Maynard
Shipley 160
The Study of Variable Stars. Professor Solon I. Bailey 1 76
The Progress of Science :
Cornell University and the Summer Meeting of the American Association ; Legislation
Science ; Scientific Items 187
THE SCIENCE PRESS
Lancaster, pa. garrison, n. y.
NEW YORK: Sub-Station 84
Single Number, 30 Cents Yearly Subscription, $3.00
Copyright, 1906, bt THE SCIENCE PRESS
