XATIOXAL GEOGRAPHIC MAGAZINE 



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POPULAR SCIENCE 

 MONTHLY 



T 



Edited by Professor J. McKEEN CATTELL 

 of Columbia University 



With the Co-operation of Leading American Jlfeii of Science 



IT is fortunate for American science that America's leading scien- 

 tific periodical should continue to be published under favorable 

 auspices. Since its establishment b}^ Messrs. D. Appleton & 

 Company and the late Dr. E. L. Youmans in 1S72, this journal has 

 been so important a factor in the distribution of scientific knowledge 

 that it seems almost u.seless to call attention to the great names which 

 have been associated with it during the past twenty-eight years — to 

 such names as those of Darwin, Huxley, Spencer, and many others, 

 to who.se works many Americans were first introduced through its 

 pages. 



In the future, as in the past, Thk Popular vSciknck Monthly 

 will afford an accurate and authoritative record of the progress of 

 contemporary science, and besides being indispensable to the pro- 

 fessional investigator, it will .seek to .secure that popular interest and 

 support which are of essential importance to the cau.se of .scientific 

 progress. 



THE NEW EDITOR 



Dr. J.\MKS McKKr{N Cattkll, I'rofes.sor of Psychology in 

 Columbia University, and hitherto lulilor of Science, occupies a 

 well-known position of di.stinction among American Men of vScience. 

 Dr. Cattell is thoroughly familiar with the needs of the general 

 pul;lic, and will have these in view as well as those of special scien- 

 tific knowledge. He will be assisted in the editorship by Dr. K. L. 

 Thorndike, of Columbia Univer.sity. 



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