The geographical position of this remarkable place, considered generally, cannot now be questioned; since we possess, in addition to the information communicated by Mr. Browne, that of Mr. Horneman; both in respect of the time employed on his way thither, and of the reports of the natives, concerning its relative position to Cairo, the Oases, Faiume, and Derna: and when it is considered that these new authorities differ from the former ones, by a few minutes of longitude only. The report of Mr. Horneman is no less favourable to the former idea, of its being the OASIS OF AMMON; and the remains of the Egyptian structure within it, those of the famed Temple of Jupiter Ammon: the honour of which original discovery is due to Mr. Browne. For, in addition to what may be deemed the _inner_ temple, Mr. Horneman has viewed the foundations indicated by Mr. Browne, in circumference some hundred paces; and even some remains of the walls themselves, of what may be supposed to have been the _including_ temple; the materials of which are probably existing in the construction of the stone houses of a town, estimated to contain a population of six to seven thousand[34] persons. We need no longer to entertain a doubt, founded on the disappearance of the materials of the temple and palace described by the ancients. Besides, on a review of the subject, so many particulars accord with the ancient descriptions; such as the dimensions, and accordance of geographical situation; the fruits, the copious fountains, fertility of soil; and finally, although a negative proof, perhaps one of the strongest circumstances of all, the declaration of the inhabitants, that “no other fertile spot exists in the vicinity; or nearer than the Lesser Oasis.” A proof of the populousness and affluence of the ancient state of Ammon, exists in the numerous catacombs pointed out to, or visited by, Browne and Horneman: and by the probability that the rocky hill on which the modern town stands, is also full of catacombs. Such are indeed known to exist within the habitations of the people of the neighbouring village of Ummesogeir; which may thence be supposed, notwithstanding its present miserable state, to have been a flourishing appendage to ancient Ammon: and might probably have been the _Siropum_ of Ptolemy. One particular requires discussion. Mr. Horneman differs very widely from Mr. Browne, in his estimation of the extent of the territory of Siwah. Mr. Browne reckons it six miles by four: but Mr. Horneman a _circumference_ of 50 miles. His words are, “a well-watered valley of 50 miles in circuit, surrounded by naked steep rocks.” (Abulfeda also says, that the territory is environed by hills.) Very probably, Mr. Horneman’s idea goes to the whole space inclosed by the hills; Mr. Browne’s to the fertile part of it only; and it must be acknowledged, that the dimensions given by the latter, accord with those of the ancients.