M.M
Kovalevsky

St Petersburg Imperial University


M.I.
Tugan-Baranovsky

St. Petersburg Imperial University


M.I.
Rostovtzeff

St. Petersburg Imperial University




Edgar
Salin

(Neurotree)


Karl
Mannheim

(Neurotree)


Alfred
Weber

Heidelberg University




Paul
Mansion

Ghent University (MathTree)


George
Sarton

Harvard (History of History Tree)


Josiah
Royce

Harvard (Philosophy Tree)


Franz
Hofmeister

Charles University in Prague (Chemistry Tree)


Lawrence Joseph
Henderson

Harvard Medical School (Physiology Academic Tree)




Oswald
Külpe

University of Wurzburg (Neurotree)


Karl
Bühler

Vienna University (PsychTree)





Rachel
Harvey

Chicago
(Options)

Rachel HarveyX