James Stevenson 
Water Highways of the Interior of Africa [PDF ebook] 
With Notes on Slave Hunting and the Means of Its Suppression With Maps

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The Council of the Philosophical Society of Glasgow having in contemplation the formation of a Geographical and Ethnological Section suggested my reading a Paper bearing on these depart ments of Science. The great problems of African geography which have just been solved, with some notice of the ethnological problems on which we are now entering, presented to my mind a suitable subject. If, in a general and introductory form, this Paper paves the way for the scientific treatment of these subjects by others at future meetings of the Society, I shall feel that my object has been attained. The subject is at present of intense public interest. While I have not hesitated to direct attention to questions of practical bearing and importance, I have endeavoured to do so by the statement of facts which are within the sphere of a Philosophical Society.