worship: and we may always, upon inquiry, perceive something very peculiar in their history and situation. They were particularly devoted to the worship of the Sun; and they were generally situated near hot springs, or else upon foul and fetid lakes, and pools of bitumen. It is, also, not uncommon to find near them mines of salt and nitre; and caverns sending forth pestilential exhalations. The Elysian plain, near the Catacombs in Egypt, stood upon the foul Charonian canal; which was so noisome, that every fetid ditch and cavern was from it called Charonian. Asia Proper comprehended little more than Phrygia, and a part of Lydia; and was bounded by the river Halys. It was of a most inflammable soil; and there were many fiery eruptions about Caroura, and in Hyrcania, which latter was styled by the Greeks κεκαυμενη. Hence, doubtless, the region had the name of [106]Asia, or the land of fire. One of its most antient cities, and most reverenced, was Hierapolis, famous for its hot [107]fountains. Here was also a sacred cavern, styled by [108]Strabo Plutonium, and Charonium; which sent up pestilential effluvia. Photius, in the life of Isidorus, acquaints us, that it was the temple of Apollo at Hierapolis, within whose precincts these deadly vapours arose. [109]Εν Ἱεραπολει της Φρυγιας Ἱερον ην Απολλωνος, ὑπο δε τον ναον καταβασιον ὑπεκειτο, θανασιμους αναπνοας παρεχομενον. He speaks of this cavity as being immediately under the edifice. Four caverns of this sort, and styled Charonian, are mentioned by [110]Strabo in this part of the world. Pliny, speaking of some Charonian hollows in Italy, says, that the exhalations were insupportable. [111]Spiracula vocant, alii _Charoneas_ scrobes, mortiferum spiritum exhalantes. It may appear wonderful; but the Amonians were determined in the situation both of their cities and temples by these strange phænomena. They esteemed no places so sacred as those where there were fiery eruptions, uncommon steams, and sulphureous exhalations. In Armenia, near [112]Comana, and Camisena, was the temple of [113]Anait, or fountain of the Sun. It was a Persic and Babylonish Deity, as well as an Armenian, which was honoured with Puratheia, where the rites of fire were particularly kept up. The city itself was named Zela; and close behind it was a large nitrous lake. In short, from the Amonian terms, Al-As, came the Grecian ἁλος, ἁλας, ἁλς; as, from the same terms reversed (As-El), were formed the Latine Sal, Sol, and Salum. Wherever the Amonians found places with these natural or præternatural properties, they held them sacred, and founded their temples near them. [114]Selenousia, in Ionia, was upon a salt lake, sacred to Artemis. In Epirus was a city called Alesa, Elissa, and Lesa: and hard by were the Alesian plains; similar to the Elysian in Egypt: in these was produced a great quantity of fossil [115]salt. There was an Alesia in Arcadia, and a mountain Alesium with a temple upon it. Here an antient