But navigators may avoid these dangers by sailing to the westward of the Canaries. I shall give an account of a shipwreck, which happened on this coast while I was at isle St. Louis, which will be the best means of illustrating the dangers I have mentioned, while it will afford some interesting information relative to the desert which borders on the Senegal. M. de Brisson left France in the month of June, 1785, for isle St. Louis, in a vessel called the St. Catharine, Captain Le Turc. On the 10th of July following, they found themselves at midnight, between the coast of Africa and the Canary islands, in a sort of creek formed by rocks. The captain being alarmed, steered the ship towards the shoal; and the vessel being driven with great force by the currents, struck three times, and then remained motionless. During the whole night, it resisted the attacks of the sea, which seemed ready every instant to swallow it up; but towards morning the storm abated, and M. de Brisson, with all the crew, got to land. But these unfortunate people found themselves on a barren and unknown country; they ascended the highest rocks, and could perceive nothing but an immense plain covered with white sand, on which a few plants were interspersed, similar to branches of coral; they bore a small seed of the same colour, resembling in size and shape that of mustard. The Moors call it _avezoud_, and make a paste of it, with which they regale themselves. In the distance, they discovered several hillocks, which, being overspread by a kind of wild fern, resembled a vast forest. [Illustration: _Shipwreck at Cape Blanc._] [Illustration: _Catching Slaves._] They advanced towards the hillocks, and soon perceived a number of camels feeding, from which they had no doubt that the neighbourhood was inhabited. This was a valuable discovery for the poor mariners, who were almost perishing with hunger and thirst. Some men who were watching the camels, as soon as they perceived the Europeans, gave the alarm to a neighbouring encampment, and they soon found themselves surrounded by Moors, who appeared to be overjoyed, and made the most dreadful shouts and cries. The shipwrecked crew not being together, were seized by the collar with a ferocious eagerness, and immediately stripped; while those who attempted resistance, were wounded and thrown almost expiring on the sand.