Department of Mines. Geological Series Bulletin No. 20.
Publication of the Geological Survey Division. Translated from the original Afrikaans. “The data contained within this bulletin was collected in connection with eleven earthquakes since 1938. The information was obtained by means of questionaires sent out to magistrates, postmasters and postal agents in areas where the effect of the various earthquakes were expected to have made themselves felt.” Some of the earthquakes investigated were in Zululand, Bethlehem, Tzaneen, Namaqualand, Prieska, et al. Includes a fold out map. Stamps of the Cape Times Library on the card-wraps with names of two previous owners.14 Pages.
Publisher: Government Printer
Date Published: 1951
Publication Place: Pretoria
Binding: Softcover. Thin card wraps. Foxed