On the 19th of May we at length departed with twenty camels, two dromedaries, thirteen donkies, and a horse. As I am speaking of camels and dromedaries, it may not be superfluous to remark what is here understood by those terms; for in Europe, an inaccurate, or at least negligent distinction is made between both, which is not known here. We call Camel what the Frenchman names _dromadaire_, and dromedary (Trampelthier, trampling beast) what he names _chameau_. The first has one hump, the other two. Thus Dromedaries or _chameaux_ could not be spoken of at all in Egypt, for there are no bi-humped animals, although they occur now and then in single-humped families. In Syria and Farther Asia, there would again be no camels or _dromadaires_; at least the single-humped animals are very rare. In fact, it is very immaterial, and taken by itself, should hardly warrant the distinction of another species, whether or not the fat hump on the back is divided into two. At the present time the orientals make no distinction between them, and the ancients evidently did the same, for the single-humped animals do not carry more easily than the others, nor do they run faster, nor does the rider sit between the two humps more securely than on one, for these are as entirely built over by the saddle as the single hump. However, a great distinction is made, though not a naturalistic one, between the strong and unwieldy burthen camel, commonly called _gémel_, and the younger, more active, thoroughly-broken riding camel, which is called _heggîn_, because the Mekka pilgrims (_hágg_, pl. _heggâg_) have a great estimation for good riding animals. An Arab takes it as ill when any one calls his slender, well-bred camel a _gémel_, as one would feel angry at having one’s thorough-bred horse called a plough-horse or dray-horse. The meaning, indeed, of _dromedarius_ or _camelus dromas_, χάμηλος δρομάς with the ancients, was nothing more, as the name proves, than a runner, of the lighter, more rideable race. As the latter are far more expensive, it is often difficult to obtain even a few of the better kind of animals from the Arabs who are bound to produce them; the greater part of our company was obliged to be contented with the usual beasts of burthen; mine was, however, passable, and was at least called _heggîn_ by the Arabs. I did not await the general break up of the camp, at which our Sheîkh of Saqâra and he of Mitrahinneh were present, but rode forward with Erbkam along the desert. On the way he took the plan of a pyramid with its neighbourhood, that I had remarked on a former occasion. We have now noted in all sixty-seven pyramids, almost twice as many as are found in Perring. The topographical plans of Erbkam are indeed a treasure.