Sketch of Genius for "Tradition"

Study for "Mathematics," "The Sciences," Library of Congress, Washington D.C.

Portret van Edouard de Block-Loor als kind van twee

Study for "Genius," "The Arts," Library of Congress, Washington D.C.

Schets van een naakt kind

Zittende putto met een blad tekst in de handen

Study for "Genius," "The Arts," Library of Congress, Washington D.C.