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Nathaniel
Bowditch
Harvard (Physics Tree)


Benjamin
Peirce
Harvard (MathTree)


Charles Sanders
Peirce
Johns Hopkins (Philosophy Tree)




Richard
Owen
British Museum of Natural History (Neurotree)


Jeffries
Wyman
Harvard (Neurotree)


Johann C. D.
von Schreber
Universität Erlangen (Neurotree)


Carl F. P.
von Martius
Universität München (Neurotree)


Matthias Alexander
Ecker
Universität Freiburg (Physiology Academic Tree)

Johann Friedrich
Blumenbach
Universität Göttingen (Chemistry Tree)


Lorenz
Oken
Universität Zürich (Physiology Academic Tree)


Carl Caspar
von Siebold
Universität Würzburg (Neurotree)

Joseph
Barth
Universität Wien (Neurotree)

Georg
Prochaska
Vienna University (Neurotree)

Johann Peter
Frank
Universität Wien (Neurotree)

Antonio
Scarpa
University of Modena (Neurotree)

Johann Ignaz Joseph
Döllinger, Sr
University of Bamberg (Neurotree)


Ignaz
Döllinger
University of Munich (Neurotree)


Ignaz
Döllinger
University of Munich (Neurotree)


Andreas
Röschlaub
University of Munich (Neurotree)


Carl Friedrich
Kielmeyer
Universität Tübingen (Chemistry Tree)

Étienne
Geoffroy St. Hilaire
University of Paris (Anatomy Tree)


Franz Xaver von
Zach
Gotha Observatory (Astronomy Tree)

Georg Christoph
Lichtenberg
Universität Göttingen (Meteorology Tree)

Johann Friedrich
Blumenbach
Universität Göttingen (Chemistry Tree)

Abraham Gottlob
Werner
Bergakademie Freiberg (Chemistry Tree)




Louis
Agassiz
Harvard (Neurotree)


Ernst Florens Friedrich
Chladni
Leucorea Universität Wittenberg (Physics Tree)

Ludwig Wilhelm
Gilbert
Universität Leipzig (Chemistry Tree)

Johann Christian
Rosenmüller
Universität Leipzig (Neurotree)

Johann Christian August
Clarus
Universität Leipzig (Neurotree)


Ernst Heinrich
Weber
Universität Leipzig


Karl Brandan
Mollweide
Universität Leipzig (MathTree)


Moritz Wilhelm
Drobisch
University of Leipzig (Neurotree)


Immanuel Hermann
Fichte
Universität Berlin (Neurotree)

Christian Ernst
Weiße
Universität Leipzig (Law Tree)


Christian Hermann
Weiße
Universität Leipzig (Neurotree)


Ernst Benjamin Gottlieb
Hebenstreit
Universität Leipzig (Neurotree)


Johann Christian August
Clarus
Universität Leipzig (Neurotree)


Ernst Heinrich
Weber
Universität Leipzig


Alfred Wilhelm
Volkmann
Universität Halle-Wittenberg (Neurotree)


Ernst Heinrich
Weber
Universität Leipzig

Johann Christian
Rosenmüller
Universität Leipzig (Neurotree)


Gustav Theodor
Fechner
Leipzig University


Charles Sanders
Peirce
Johns Hopkins (Philosophy Tree)

Jeffries
Wyman
Harvard (Neurotree)

Louis
Agassiz
Harvard (Neurotree)


Jeffries
Wyman
Harvard (Neurotree)

Claude
Bernard
Collège de France et l'Hôpital Hôtel-Dieu de Paris (Neurotree)

Max Johann Sigismund
Schultze
Anatomical Institute, Bonn (Neurotree)

Carl Friedrich Wilhelm
Ludwig
Universität Leipzig (Neurotree)

Carl
von Voit
Ludwig-Maximilians-Universität München (Chemistry Tree)


Henry Pickering
Bowditch
Harvard Medical School (Neurotree)


Robert Wilhelm Eberhard
Bunsen
Universität Heidelberg (Chemistry Tree)

Karl Ewald
Hasse
Universität Göttingen (Neurotree)

Johannes Peter
Müller
Universität Berlin (Neurotree)

Hermann
von Helmholtz
Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt
University of Leipzig


Friedrich
Stromeyer
Universität Göttingen (Chemistry Tree)


Robert Wilhelm Eberhard
Bunsen
Universität Heidelberg (Chemistry Tree)


Ernst Heinrich
Weber
Universität Leipzig


Karl Ewald
Hasse
Universität Göttingen (Neurotree)


Karl
Mayer
Universität Bonn (Neurotree)

Karl Asmund
Rudolphi
Universität Berlin (Neurotree)


Johannes Peter
Müller
Universität Berlin (Neurotree)


Johannes Peter
Müller
Universität Berlin (Neurotree)


Hermann
von Helmholtz
Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt
University of Leipzig


Adam
Sedgwick
Cambridge (Physics Tree)


William
Hopkins
Cambridge (Physics Tree)


Francis
Galton
Cambridge



Edward L.
Thorndike
Columbia
(Options)

Laurance F.
Shaffer
Columbia (Neurotree)

Leonard D.
Goodstein
University of Iowa

Knight
Dunlap
UCLA (Neurotree)

Truman
Kelley
(MathTree)

John
Flanagan
Harvard Medical School (Neurotree)



William Clark
Trow
University of Michigan (MathTree)

James R.
Barclay
University of Kentucky (MathTree)

William S.
Gray
Columbia (EduTree)

Ernest
Horn
University of Iowa (EduTree)

Percival
Symonds
Columbia (EduTree)

Arthur R.
Jensen
UC Berkeley (EduTree)


Philip W.
Jackson
Chicago (Neurotree)

Alan S.
Kaufman
Yale School of Medicine (Neurotree)

Ed
Argulewicz
University of Georgia (EduTree)

Bruce A.
Bracken
William and Mary (EduTree)

Walter V.
Bingham
Chicago (Neurotree)

Bruce V.
Moore
Pennsylvania State College

Sven
Froeberg
Bethany College


Grover Thomas
Somers
Indiana University (EduTree)

Thomas Henry
Briggs
Columbia (EduTree)

Francis D.
Curtis
University of Michigan (EduTree)

Leta
Hollingworth
Columbia Teacher's College

Margaret Sidney
Quayle
University of Alabama (Neurotree)

Carl Ransom
Rogers
Center for Studies of the Person

Herbert A.
Toops
Ohio State (Neurotree)

Harold A.
Edgerton
Ohio State (Neurotree)

Robert J.
Wherry,
Ohio State (Neurotree)

W. Clark
Trow
University of Michigan

Paul
Witty
Northwestern (Neurotree)

Sol
Garfield
Washington University


Elliot
Aronson
UC Santa Cruz


Mike
Arons
University of West Georgia (Neurotree)

Edward ThorndikeX