Pliny the Elder, Natural History 6.103

6.103

est et aliud Hydreuma Vetus — Trogodyticum nominatur —, ubi praesidium excubat deverticulo duum milium; distat a Novo Hydreumate VII. inde Berenice oppidum, ubi portus Rubri maris, a Copto CCLVII p. sed quia maior pars itineris conficitur noctibus propter aestus et stativis dies absumuntur, totumn a Copto Berenicen iter duodecimo die peragitur.

the third is at a second Hydreuma, distant from Coptos ninety-five miles; the fourth is on a mountain; the next to that is at another Hydreuma, that of Apollo, and is distant from Coptos one hundred and eighty-four miles; after which, there is another on a mountain. There is then another station at a place called the New Hydreuma, distant from Coptos two hundred and thirty miles: and next to it there is another, called the Old Hydreuma, or the Troglodytic, where a detachment is always on guard, with a caravansary that affords lodging for two thousand persons. This last is distant from the New Hydreuma seven miles. After leaving it we come to the city of Berenice, situate upon a harbour of the Red Sea, and distant from Coptos two hundred and fifty-seven miles. The greater part of this distance is generally travelled by night, on account of the extreme heat, the day being spent at the stations; in consequence of which it takes twelve days to perform the whole journey from Coptos to Berenice. Passengers generally set sail at midsummer, before the rising of the Dog-star, or else immediately after, and in about thirty days arrive at Ocelis in Arabia, or else at Cane, in the region which bears frankincense. There is also a third port of Arabia, Muza by name; it is not, however, used by persons on their passage to India, as only those touch at it who deal in incense and the perfumes of Arabia. More in the interior there is a city;