"Illinois" . . "Arusha (Tanzania)" . . "Tanzania" . . "Chicago (Ill.)" . . "CCTA/IUCN Symposium on the Conservation of Nature and Natural Resources in Modern African States (1961 : Arusha, Tanzania)" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Records and correspondence"@en . . . . . . . . . . . . . . . . . . . . . . . . . "History"@en . . . . . . . . . . . . . . . . . . . "Diaries"@en . . . . . . . . . . . . . . . . . . "Photographs"@en . . . . . . . . . . . . . . "Great Britain" . . "Ciba Foundation Symposium on Man and His Future (1963 : London, England)" . . . "Africa" . . . . "London (England)" . . "Darwin Centennial Celebration (1959 : University of Chicago)" . . . "Voyages and travels 20th century." . .