I may conclude by a word on Discoveries in The Sahara. It is now twenty years or more since The Sahara was explored, or before my present hap-hazard tour. From what I have seen since my return, and the little encouragement given to this sort of enterprise,--the public of Great Britain being so much occupied with railways, free-trade, and currency questions, educational schemes, and State endowed, or voluntary ecclesiastical establishments,--it is difficult to foresee how and when another tour may be undertaken, or how a tourist will have the heart to make another experiment. Unhappily, the spirit of discovery, like Virtue's self, is difficult to be satisfied with its own reward. Something, however, may in time be expected from the French, who will get restless in their Algerian limits, and make a bold effort to disenthral themselves, by leaping the bounds of the mysterious Sahara. Evidently the French Government have prohibited all isolated attempts. But should their colony succeed, and they must make it succeed, then a grand stroke of policy and action will be struck upon the lines of the Saharan routes, for diverting The Desert trade, if possible, into Algerian channels. We must wait patiently this time for further researches. Necessity propels nations in the march of discovery. England has some considerable stake likewise in the commerce of The Great Desert. But our governmental affairs are so vast, and ramify over so large a space of the world, that it is extremely difficult to get a Minister to strike out a new path, unless he has the sympathies and hearty support of the public with him. And certainly the last thing in the imagination of the British public is the undertaking Discoveries in The Great Desert. A remark may be made respecting the English spelling of Arabic words and names. I have not adopted the new system, as very few people understand it. I have endeavoured to represent the sounds of the original words in the ordinary way, giving sometimes the Arabic letters for those who prefer greater correctness. The spelling of Oriental and African names is also occasionally varied for the sake of variety, and sometimes I have written the words in various ways, according to the style of pronunciation amongst different Saharan tribes. I have also omitted accents and italics as much as possible, to avoid confusion and trouble to the printer. With respect to the contents at the head of the chapters, numberless little things and circumstances are besides unavoidably omitted in the enumeration.