On entering The Desert, my principal object was to ascertain how and to what extent the Saharan Slave-Trade was carried on; although but a comparatively small portion of the following pages is devoted to this subject. I have already reported fully on this traffic, and it was unnecessary to go over the ground again, which might defeat, by disagreeable repetitions and endless details, the object which I have in view,--that of exciting an abhorrence of the Slave-Trade in the hearts of my fellow countrymen and countrywomen. In these published extracts from my journal, I have endeavoured to give a truthful and faithful picture of the Saharan Tribes; their ideas, thoughts, words, and actions; and, where convenient, I have allowed them to speak and act for themselves. This is the main object which I have undertaken to accomplish in this Narrative of my Personal Adventures in The Sahara. The public must, and will, I doubt not, judge how far I have succeeded, and award me praise or blame, as may be my desert. If I have failed, I shall not abandon myself to despair, but shall console myself with the thought that I have done the best I was able to do under actual circumstances, and in my then state of health. It would, indeed, ill become me to shrink from public criticism, after having braved the terrors and hardships of The Desert. However, the publication of this journal may induce others to penetrate The Desert,--persons better qualified, and more ably and perfectly equipped than myself, and who may so accomplish something more permanently advantageous than what I have been able to compass. Acting, then, as pioneer to others, my Saharan labours will not be fruitless.