George H.
Parker

Harvard (Anatomy Tree)




Thomas
Stevenson

King's College


Michael
Foster

Cambridge (Neurotree)




Frank Rattray
Lillie

Chicago (DevTree)


Soren P. L.
Sørensen

University of Copenhagen, Carlsberg Laboratory






















Gilbert N.
Lewis

UC Berkeley


James
Franck

Chicago




Wilhelm
Schlenk

Vienna University, Berlin


Herman F.
Mark

Polytechnic University




Elliot L.
Elson

Washington University (Physics Tree)

Douglas
Magde

UCSD
(Options)

Douglas MagdeX