SCIENCE-ADVERTISEMENTS 



Biographical Directory of American Men of Science 



The undersigned is compiling a third edition, revised and enlarged, of The 

 Biographical Directory of American Men of Science, the completion of which had 

 been postponed by the war. It is intended that the directory shall contain brief biog- 

 raphies of all those in America who have worked in the natural and exact sciences. 

 He will be under great obligations to those who will fill in and return this blank. 



'^ J. McKEEN CATTELL 



Garrison-on-Hudsortj TV. Y, 



Full name with title and mail address, the part of the name ordinarily omitted in correspondence being in parentheses— e. g., Prof. 

 J(phn) Wiilson) Smith, f^^ Lincoln St., Washington, D. C. 



Department of investigation 



Pktce and dale of bo'th 



Educalion and Agrees, 

 including honorary 

 degrees, with dales 



Positions with 

 dales al which 

 they were held 



Temporary or minor positions and honors, 

 such as lectureships, iruslekskipsi 

 scientific expeditions, prizes, fnedals, etc. 



Membership in scientific socifilit 

 and offices with dates 

 at which they were held 



Chief subjects in which research work- 

 has been published or 

 is now in progress 



