Benjamin
Peirce

Harvard (MathTree)


Charles Sanders
Peirce

Johns Hopkins (Philosophy Tree)


Richard
Owen

British Museum of Natural History




Carl F. P.
von Martius

Universität München


Lorenz
Oken

Universität Zürich (Physiology Academic Tree)


Ignaz
Döllinger

University of Munich


Andreas
Röschlaub

University of Munich






Louis
Agassiz

Harvard (Marine Ecology Tree)




Friedrich
Stromeyer

Universität Göttingen (Chemistry Tree)


Robert Wilhelm Eberhard
Bunsen

Universität Heidelberg (Chemistry Tree)


Ernst Heinrich
Weber

Universität Leipzig


Karl Ewald
Hasse

Universität Göttingen


Karl
Mayer

Universität Bonn


Karl Asmund
Rudolphi

Universität Berlin


Johannes Peter
Müller

Universität Berlin


Johannes Peter
Müller

Universität Berlin


Ernst Wilhelm
von Brücke

University of Vienna


Hermann
von Helmholtz

Physikalisch-Technische Reichsanstalt


Wilhelm
Wundt

University of Leipzig


Théodore
Flournoy

University of Geneva (PsychTree)


Guillaume
Dupuytren

Hôpital Hôtel-Dieu de Paris


François
Magendie

Collège de France, Paris


Guillaume-Benjamin
Duchenne

Hôpital Hôtel-Dieu de Paris


Jean-Martin
Charcot

Hôpital Salpêtrière, Paris



Édouard
Claparède

Rousseau Institute
(Options)

André
Rey

University of Geneva

Helena Wladimirna
Antipoff

Federal University of Minas Gerais (UFMG)

Irene de
Melo

Federal University of Minas Gerais (UFMG)

Jean
Piaget

University of Geneva

Annette
Karmiloff-Smith

Birkbeck College

Emilia
Ferreiro

Center of Research and Advanced Studies of the National Polytechnic Institute In Mexico (LinguisTree)

Juan
Pascual-Leone

York University (Philosophy Tree)

Ronald
Lippitt

University of Michigan (PsychTree)

Ernst
Boesch

Saarland University

Robbie
Case

University of Toronto (MathTree)

Hans G.
Furth

Catholic University (PsychTree)

Maurice
Reuchlin

Université René Descartes Paris V (PsychTree)

Bärbel
Inhelder

University of Geneva

Hermine
Sinclair

(LinguisTree)

Robert
Maier

Utrecht (EduTree)

Philippe
Rochat

Emory (PsychTree)

Scania Marie
de Schonen

National Center for Scientific Research (CNRS)


Joachim F.
Wohlwill

(City Planning Tree)

Lawrence
Kohlberg

Harvard (PsychTree)

Édouard ClaparèdeX