Here he remained until the 2d of March, 1814, when he joined himself, as a petty trader, to another caravan, which was proceeding from Deraou to Berber. The caravan, consisting of about fifty merchants, with their slaves and beasts, moved under the protection of about thirty Ababde Arabs, who, though no heroes or philosophers, were not remarkably deficient either in courage or humanity. Burckhardt was a man more apt to blame than praise. If an individual performed a generous action, he generally evinced a disposition to attribute it to some selfish or mean motive, probably from the opinion that it might be considered vulgar and unphilosophical to betray a belief in disinterested virtue. It is to be regretted, however, that he should have indulged in this unamiable habit of thinking, as nothing more surely tends to awaken the resentment or suspicion of the reader, who will be led to imagine that he who constantly misrepresents the motives of men may sometimes, from unknown causes, be tempted to misrepresent their manners and actions also. If we do not entertain this opinion of Burckhardt, it is that we exercise towards him a higher degree of charity than he was accustomed to exercise towards others. The march of a caravan through the desert is a magnificent spectacle. There is a kind of sublime daring in thus venturing upon what seem to be the secret places of nature; the places whence the simoom, the hurricane, and the locust-cloud issue forth upon their fatal errands, and where many tremendous phenomena, peculiar to those dreary regions, present themselves, at intervals, to the astonished but delighted eye of the traveller.