This Appendix is intended to convey valuable information illustrative of the Lectures, drawn mainly from Dr Livingstone's own sources. Hence this part of the book is in reality essentially his own.

The explorations and discoveries made by him are herein discussed on two grounds—as to their extent, and as to their results.

Some of the subjects are treated at greater length, because they are of so much importance, and yet are only glanced at in the Lectures: the main object of this Appendix being to give new information to the general reader, and not to discuss topics well known, or of trifling consequence.

The missionary question is kept in view, since the Lectures are so substantially missionary; and because his design in coming to Cambridge referred chiefly to such matters.

These labours, explorations and discoveries will be briefly considered as to their extent and results under four aspects, viz.:

1. 1. The Historical.

2. 2. The Scientific.

3. 3. The Ethnological.

4. 4. The Moral and Religious.

Section I.—Dr Livingstone's Explorations and Discoveries considered as to their extent and results in their Historical Aspect.