THE chief object of this new map, and accompanying pamphlet, of South Africa is to show that the Witwatersrand beds occur over a large portion of Africa south of the Zambesi. The band of dolomite, ...
Relief shown by contours and spot heights. Depths shown by contours, gradient tints, and soundings. Includes inset of Cape Verde Islands, legend and index map. siris_sil_137537 ...
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