We are informed by Strabo, on the authority of Posidonius, that Eudoxus of Cyzicus, who lived about one hundred and fifty years before Christ, was induced to conceive the practicability of circumnavigating Africa, from the following circumstance. As Eudoxus was returning from India to the Red Sea, he was driven by adverse winds on the coast of Ethiopia: there he saw the figure of a horse sculptured on a piece of wood, which he knew to be a part of the prow of a ship. The natives informed him that it had belonged to a vessel, which had arrived among them from the west. Eudoxus brought it with him to Egypt, and subjected it to the inspection of several pilots: they pronounced it to be the prow of a small kind of vessel used by the inhabitants of Gadez, to fish on the coast of Mauritania, as far as the river Lixius: some of the pilots recognised it as belonging to a particular vessel, which, with several others, had attempted to advance beyond the Lixius, but had never afterwards been heard of. We are further informed on the same authority, that Eudoxus, hence conceiving it practicable to sail round Africa, made the attempt, and actually sailed from Gadez to a part of Ethiopia, the inhabitants of which spoke the same language as those among whom he had formerly been. From some cause not assigned, he proceeded no farther: subsequently, however, he made a second attempt, but how far he advanced, and what was the result, we are not informed. The second fact to which we allude is related in the Commentary of Abu Sird, on the Travels of a Mahommedan in India and China, in the ninth century of the Christian era. The travels and commentary are already given in the first volume of this work; but the importance of the fact will, we trust, plead our excuse for repeating the passage which contains it.