原文 (英语)

PREFACE. THE work entitled "The Albert N'yanza Great Basin of the Nile," published in 1866, has given an account of the equatorial lake system from which the Egyptian river derives its source. It has been determined by the joint explorations of Speke, Grant, and myself, that the rainfall of the equatorial districts supplies two vast lakes, the Victoria and the Albert, of sufficient volume to support the Nile throughout its entire course of thirty degrees of latitude. Thus the parent st