left to right: Bodil Mimi Krogh Schmidt-Nielsen (b. 1918), Knut Schmidt-Nielsen (1915-2007), and Barbara Wagner. The Schmidt-Nielsens were professors in comparative physiology at Duke University and Wagner was a secretary in the Duke...

Map of Africa in 1899 showing the colonial possessions of European powers on the continent established at the Berlin Conference of 1885. This map shows major cities and trade centers, railroad routes and canals, major river systems, and...

The site includes eighteen interconnected lakes in the hyper arid Ennedi region of the Sahara desert covering an area of 62,808 ha. It constitutes an exceptional natural landscape of great beauty with striking colours and shapes. The...

Bodil Mimi Krogh Schmidt-Nielsen (b. 1918), with her children (left to right) Mimi (age 5), Bent (age 9), and Astrid (age 11). They are shown examining study materials to be taken on an African expedition. The caption provided with the...

A map of the major drainage basins of the African continent indicating the hydrologic flow to the Atlantic and Gulf of Guinea, the Mediterranean, the Red Sea and Indian Ocean, and the interior basins of the Sahara and Kalahari deserts...