Irrigation--South Africa--Northern Cape-Maps, Vaal River (South Africa)--Maps,
Map showing canals and tunnels of the proposed irrigation works for the land bordered by the Vaal and Harts Rivers and the Transvaal Republic on its border, with farms and native locations. Places shown are Barkly, Hebron and Warrenton. Some colour. Scale 1 inch to 600 Cape roods.