"To promote the study of international private and public law," the Law Faculty of the University of Leiden, Rolland, his announced an international prize essay contest, open to all scholars who can write German, English, French or Dutch. The essay is to be "a critical and complete study, based exclusively on the published sources, of the origin of the treaties of London of April 19, 1838 (1830-1839), as well as of the international legal relations between Belgium and the Netherlands since that date."

The contest closes on February 1, 1934.