Social Weeks in France - 26th session, Nice - 23-29 July 1934
25th National Peace Congress, London, 28 June - 2 July 1935
11th Session of the International Publishers Congress, London, June 7-12, 1936
26th National Peace Congress, Leads 26-29 June 1936
12th Session of the International Publishers' Congress, 1938 (International Executive Committee Meetings, Geneva 1937)
Bucharest Conference, June 29 - July 2, 1938, "Role of public authorities in the health protection of individuals" organized by International Institute of Administrative Sciences and International Union of Local Authorities
Tropical diseases: Yellow Fever in Africa - Correspondence with the Rockefeller Foundation.
Annual Medical Reports - Congo Belge.
Construction of new buildings - Destruction of rats, mice, etc.
Application for Documents by "Arbeidsorde" Stekene.