The American Journal of Science 



Established by Benjamin SHIiman in 1818 



The Leading Scientific Journal in the United States 



Devoted to the Physical and Natural Sciences, with special reference to 

 Physics, and Chemistry on the one hand, and to Geology and Mineralogy 



Professor 0. F. BARKER, of Philrdelphia ; Professor JOSEPH s. AIMES, 



. PIRSSON, Of] 



, „. PhilrdelDhia : Professor JOST.P 



MR. J. 



T *o volumes annually, in monthly numbers of about 80 pages each. 



Journal ended its first series of 50 volumes as a quarterly in 1845 ; 



series of 50 volun 



oonthly in 1870 ; its third series as a monthly ended Dec- 



ember, 1895. A Fourth Series commenced in 1896. 



Subscription price, $6 per year or 50 cents a number, postage prepaid in the United States ; 

 *o.25 to Canada ; $6,40 to Countries in the Postal Union. Back numbers at reduced prices. 



^Ten-Volume Indexes, Vols. I-X XI-XX, fourth series, price one dollar. Address 



The American Journal of Science 

 New Haven, Conn. 



SECOND EDITION, NOVEMBER, 1910 



AMERICAN MEN OF SCIENCE 



A BIOGRAPHICAL DIRECTORY 

 EDITED BY J. flcKEEN CATTELL 



fdZZ pkiCal d(reet0ry re< T rc * rw&l ' 0B { f U * t0 maintain Us usefulness. Nearly a third of the names in the 



' , . ; - , ... . . , ;., ..... 7 ... 



chnnne in ih re ?". im * to prepare the revision has been as great as that given to the first edition. There has been no 



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r "«k the hZl and f° r tkus rea *>n a few names included in the first edition have been omitted. Effort* have been exerted to 

 re P L V even to Z C<m f kU and accurate as possible. There are of course omissions, if only because some men vnll not 



'npeatef requests for 



' before, a , .» . • • • - . ■ 



^ ^ 1 needed. The thousand leading men of science hare been aga in selected 

 J* w ^l^prim^oa'all' Director ^ extends . t0 more tban 600 P^es androntaina more than 5500 sketches. 



Price : Five Dollars, net, Postage paid 



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