Carl Ernst Heinrich
Schmidt

Kaiserliche Universität Dorpat


Arthur Joachim
von Oettingen

Kaiserliche Universität Dorpat (Meteorology Tree)


Wilhelm
Wundt

University of Leipzig (Neurotree)


Wilhelm Friedrich
Ostwald

Leipzig University


Samuel Lawrence
Bigelow

University of Michigan


Floyd E.
Bartell

University of Michigan

Robert S.
Hansen

Iowa State
(Options)

Jay A.
Mann

Case Western (E-Tree)

Robert HansenX