SECOND EDITION, NOVEMBER, 1910 



AMERICAN MEN OF SCIENCE 



A BIOGRAPHICAL DIRECTORY 

 EDITED BY J. HcKEEN CATTELL 



A Biographical directory requires revision if it is to maintain Us usefulness. Nearly a third of the names in the 

 present edition are new, and the sketches which appeared in the first division have in nearly every case been revised. The 

 amount of work required to prepare the revision has been as great as that given to ike first edition. There has been no 

 change tn the general plan of the work. Greater strictness has been observed in confining its scope to the natural and 

 exact sciences and for this reason a few names included in the first edition have been omitted. Efforts have been exerted to 

 make the book as complete and accurate as possible. There are of course omissions, if only because some men will not 

 reply even to repeated requests for the information needed. The thousand leading men of science have been again selected 

 by the methods that were used before, and stars horn been added to the subjects of research in the case of 269 new men who 

 Aaw obtained places on the list. The editor's object in selecting this group of scientific men has been to make a study of 

 tie conditions on which scientific research depends and so far as may be to improve these conditions. '1 here art printed in 

 an appendix the two statistical studies that have been made.— From the Preface to the Second Edition. 



This directory should be in the hands of all those who are directly or indirectly interested in scientific 



with scientific men v 



(5) Libraries will find the book to be a necessary addition to their reference shelves. 



ine second edition of the Directory extends to more than 600 pages and contains more than 5500 sket 

 rJLUn P nnted . on &11 ™K P»per and bound in buckram with leather label. Although the work has 

 icwea in size by more than 50 per cent., it is sold at the same price as the first edition. 



Price : Five Dollars, net, Postage paid 

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