Vol. LXX. No. 5. 



MAY, 1907 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEK CATTELL 



CONTENTS 





The Jamaica Earthquake. Professor Charles "W. Brown .... 385 



Notes oa the Development of Telephone Service. Fred DeLand . . . 404 



Sight and Seeing in Ancient Times. Professor Chas. W. Super . . . 413 



The Classification of the Arts. Professor Ira Howerth 429 



The Value of Science. M. H. Poincare 437 



Is the Mind in the Body? Professor George Stuart Fullerton . . , 452 



Drug Abuses and their Effects on the People. Dr. J. Madison Taylor . 459 



Illusions of Vision and the Canals of Mars. Professor Andrew Ellicott 



Douglass 464 



The Progress of Science: 



Berthelot and Moissan; The Founders of the Medical Department of 

 the Johns Hopkins University; The Directorship of the U. S. Geo- 

 logical Survey; Scientific Items 475 



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Copyright, 1907, bt THE SCIENCE PRESS 



