Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)










George Sylvester
Morris

Johns Hopkins (Philosophy Tree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)




Josiah
Royce

Harvard (Philosophy Tree)






Wilhelm
Wundt

University of Leipzig


Francis
Galton

Cambridge






Ernst Heinrich
Weber

Universität Leipzig


Moritz Wilhelm
Drobisch

University of Leipzig


Christian Hermann
Weiße

Universität Leipzig


Johann Christian August
Clarus

Universität Leipzig


Alfred Wilhelm
Volkmann

Universität Halle-Wittenberg


Gustav Theodor
Fechner

Leipzig University






Henry Pickering
Bowditch

Harvard Medical School


Wilhelm
Wundt

University of Leipzig




Robert Wilhelm Eberhard
Bunsen

Universität Heidelberg (Chemistry Tree)


Karl Ewald
Hasse

Universität Göttingen


Johannes Peter
Müller

Universität Berlin


Hermann
von Helmholtz

Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt

University of Leipzig


William
Hopkins

Cambridge (Physics Tree)


Francis
Galton

Cambridge





Roland C.
Davis

Indiana University
(Options)

Donald W.
Shearn

Colorado College

Robert M.
Stern

Penn State

John A.
Johnson

Johns Hopkins (PsychTree)

Eric
Muth

Clemson University

Peter J.
Gianaros

University of Pittsburgh

Max E.
Levine

Penn State


Sara C.
Higgins

Penn State

Jiangyue
Wang

Penn State

Oran Wendall
Eagleson

Indiana University

Robert S.
Daniel

(LinguisTree)

Douglas
Chute

Drexel (LinguisTree)

R. Thompson
Putney

University of Missouri (PsychTree)

Frederick
Gault

Western Michigan University

Roland DavisX