Mr. Fletcher adds, "The white man is at the mercy of every tenant of The Desert, and though we would, one cannot be all things to all men." Nevertheless, I do think, _poverty_ is my great protection in travelling in these countries. My fellow-travellers, up to the present time, are civil and assist me. It is necessary to mention here, I have neither compass nor thermometer, nor measure of any kind, nor maps, nor watch, so that I'm afraid my journal will sound ill to scientific ears. This was very bad management. Still we shall see what a man can do without the ordinary and most common scientific instruments of travelling. I have, however, an hour-glass, which embraces four hours in the time of emptying, and which I found useful in Ghadames, but make no use of it _en route_. I consider the objects of my tour _moral_, a random effort to maim, or kill, or cripple the Monster Slavery, a small rough stone picked up casually from the burnt and arid face of The Desert, but with dauntless hand thrown at this Titanian fabric of crime and wickedness. However, as my friend Mr. Fletcher advises, it does not prevent me from "picking up information," any how and everywhere, which I trust the reader will have already perceived. As a person who loses one sense acquires more intensity in others, so I, having no artificial means for procuring information with me, must do all by the ordinary senses of observation, common to the civilized man and the savage. The mirage was very abundant to-day, producing a variety of splendid phenomena, "_Castelli in Spagna_," running streams, and silvery lakes, and a thousand things of water, and air, and landscape, just types of those pleasures and delights which we seek, and when grasping them, they slip from between our fingers.