Ruin at Siwa, in Egypt. - A great curiosity about Siwa, is a ruin, of undoubted antiquity, which, according to Mr. Browne, resembles exactly those of Upper Egypt, and was erected and adorned by the same intelligent race of men. The figures of Isis and Anubis are conspicuous among the sculptures; and the proportions are those of the Egyptian temples, though in miniature. What remains of it, is a single apartment, built of massy stones, of the same kind as those of which the pyramids consist. The length is thirty-two feet, the height eighteen, the width fifteen. A gate at one end forms the principal entrance; and two doors open opposite to each other. The other end is quite ruinous. In the interior are three rows of emblematical figures, representing a procession; and the space between them is filled with hieroglyphic characters. It has been supposed, with some degree of probability, that Siwa is the Siropum of Pliny, and that this building was coeval with the famous temple of Jupiter Amnion, and a dependency on it.