Reports
1961. "The state of the earth sciences in South America", Transactions American Geophysical Union, 42, 2 (June, 1961), 160-183; 1961. "University of Toronto, Geophysics Laboratory -- Report upon research in 1958", Boletin Bibliografico de Geofisica y Oceanografia Americanas (Mexico), 287-291; 1961. "Changing view of the Earth's crust", ICSU Review, 3 (1961), 15-20; 1961. "Continental and oceanic differentiation", Nature, 192, 4798 (1961-10-14), 125-128; 1961. "Earth, chemical constitution of", Encyclopaedic Dictionary of Physics (New York: Pergammon Press, 1961), offprint
