Vol. LVIII. No. 3. JANUARY, 1901. 



THE 



POPULAR SCIENCE 

 MONTHLY. 



EDITED BY J. McKEEJV CATTELLJ 



CONTENTS : 



Asphaltum for a Modern Street. S. F. Peckham 225 



The Effect of Physical Agents on Bacterial Life. Dr. Allan Macfadyen 238 



Flies and Typhoid Fever. Dr. L. O. Howard 249 



Geometry : Ancient and Modern. Professor Edwin S. Crawley. . . . 257 

 An Address before the Anthropological Department of the British 



Association. T. H. Huxley 267 



The Story of Autonous. Professor William Henry Hudson 276 



The Economic Life of France. Dr. Edward D. Jones 287 



Pearson's Grammar of Science. C. S. Peirce 296 



Chapters on the Stars. Professor Simon Newcomb 307 



Discussion and Correspondence : 



Needless Obscurity in Scientific Publications : An Editor 324 



Scientific Literature : 



Botany and Agriculture ; Neurology, Psychology and Education 327 



The Progress of Science : 



The Establishment of a National Standardizing Bureau ; The Bills now before Con- 

 gress and the Example of Foreign Countries ; American Astronomical Instruments ; 

 The Work of the Department of Agriculture ; Introduction of Foreign Plants ; 

 Forestry and Irrigation ; Publications and Organization of the Department ; The 

 Commission of Fish and Fisheries ; Artificial Propagation ; Sun-Spots, Rainfall and 

 Famines ; Scientific Items 330 



McCLURE, PHILLIPS & COMPANY, 



NEW YORK: 141 EAST 25th STREET, 



london: 10 norfolk street, strand, w. c. 

 Single Number, 25 Cents. Yearly Subscription, $3.00. 



Copyright, 1900, by McCLURE, PHILLIPS & COMPANY. 

 Entered at the Post Office at New York, and admitted for transmission through the mails at second-class rates. 



