Res Gestae

Here naphtha also is produced, a glutinous substance which looks like pitch. This too is similar to bitumen, and even a little bird, if it lights upon it, is prevented from flying, sinks, and disappears utterly. And when fluid of this kind catches fire, the mind of man will find no means of putting it out, except dust.[*](Cf. xxiii. 4, 15.)

In these regions there is also to be seen a cleft in the earth,[*](Cf. Lucr. vi. 756 ff.) from which rises a deadly exhalation, which with its foul odour destroys every living creature that comes near it. If this pestilential stuff, rising from a kind of deep well, should spread out widely from its opening before rising on high, it would by its fetid odour have made the surrounding country a desert.

A similar opening was formerly to be seen (as some say) at Hierapolis in Phrygia. And from this also a noxious vapour with a penetrating stench came forth and was destructive to whatever came near it, excepting only eunuchs; and the reason for this may be left to natural philosophers to determine.[*](Cf. Dio. lxviii. 27, 3; Pliny, N.H. ii. 208.)

Also at the temple of Jupiter Asbamaeus in Cappadocia, where that famous philosopher Apollonius[*](This self-styled philosopher, of Tyana in Cappadocia, was famous for his belief in his magic or supernatural powers. He lived in the first century A.D. His Life, by Philostratus, has come down to us; see Philostratus, L.C.L., i. Introd.) is said to have been

Within this area is Adiabena, called Assyria in ancient times, but by long custom changed to this name because, lying between the navigable rivers Ona and Tigris it could never be approached by a ford; for we Greeks for transire say διαβαίνειν. At least, this is the opinion of the ancients.