The facts recorded have been derived from a variety of sources, including the accounts of the best-known travellers, and papers published in scientific and other periodicals, both — English and foreign. Of works relating to Africa as a whole and general books of reference the following, in par ticular, have been consulted: Mr. A. H. Keane's Africa, in the new issue of Stanford's Compendium; Dr. W. Sievers's Afrika, published by the Leipzig Bibliographical Institute; Mr. Keltie's Partition of Africa, and Statesman's Year-book for 1896; Mr. A. Silva White's Development of Africa, with the series of maps by Mr. Ravenstein; Mr. G. G. Chisholm's Handbook of Commercial Geography, and Longman's Gazetteer; and Mr. Keane's Ethnology in the Cambridge Geographical Series; while for the chapter on the Sahara M. Schirmer's work on that region has been of great assistance, and for South Africa, Professor Wallace's Farming Industries of Cape Colony. Professor Supan's sketch of A Century of Exploration, published in Petermann's Mitteilungen for 1888, also deserves special mention. Much care has been taken to avoid inaccuracies, and it is hoped that any which may have crept in are not serious. Information regarding such will be welcomed.