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Louis
Hartz
Harvard (STSTree)


Karl Wolfgang Christoph
Schüz
Universität Tübingen (Econometree)


Gustav
von Schmoller
Universität Berlin (History of History Tree)


Charles Franklin
Dunbar
Harvard (Econometree)


Frank W.
Taussig
Harvard (Econometree)


Arthur N.
Holcombe
Harvard (STSTree)


Émile
Boutroux
Universite de Paris (History of History Tree)


Léon
Brunschvicg
Université Paris-Sorbonne (History of History Tree)


Raymond
Aron
College de France (Neurotree)


Stanley
Hoffmann
Harvard (Philosophy Tree)

Scott D.
Sagan
Stanford
(Options)

Scott SaganX