This is the account of Artemidorus.[780] The rest of the description is partly similar to that of Eratosthenes, and partly derived from other historians.

20. Some of these say, that the sea is red from the colour arising from reflection either from the sun, which is vertical, or from the mountains, which are red by being scorched with intense heat; for the colour, it is supposed, may be produced by both these causes. Ctesias of Cnidus speaks of a spring which discharges into the sea a red and ochrous water. Agatharchides, his fellow-citizen, relates, on the authority of a person of the name of Boxus, of Persian descent, that when a troop of horses was driven by a lioness in heat as far as the sea, and had passed over to an island, a Persian of the name of Erythras constructed a raft, and was the first person who crossed the sea to it; perceiving the island to be well adapted for inhabitants, he drove the herd back to Persia, and sent out colonists both to this and the other islands and to the coast. He [thus] gave his own name to the sea. But according to others, it was Erythras the son of Perseus who was the king of this country.

According to some writers, from the straits in the Arabian Gulf to the extremity of the cinnamon country is a distance of 5000 stadia,[781] without distinguishing whether (the direction is) to the south or to the east.

It is said also that the emerald and the beryl are found in the gold mines. According to Poseidonius, an odoriferous salt is found in Arabia.

21. The Nabatæans and Sabæans, situated above Syria, are the first people who occupy Arabia Felix. They were frequently in the habit of overrunning this country before the Romans became masters of it, but at present both they and the Syrians are subject to the Romans.

The capital of the Nabatæans is called Petra. It is situated on a spot which is surrounded and fortified by a smooth and level rock (petra), which externally is abrupt and precipitous, but within there are abundant springs of water both for domestic purposes and for watering gardens. Beyond the enclosure the country is for the most part a desert, particularly towards Judæa. Through this is the shortest road to Jericho, a journey of three or four days, and five days to the Phœnicon (or palm plantation). It is always governed by a king of the royal race. The king has a minister who is one of the Companions, and is called Brother. It has excellent laws for the administration of public affairs.

Athenodorus, a philosopher, and my friend, who had been at Petra, used to relate with surprise, that he found many Romans and also many other strangers residing there. He observed the strangers frequently engaged in litigation, both with one another and with the natives; but the natives had never any dispute amongst themselves, and lived together in perfect harmony.

22. The late expedition[782] of the Romans against the Arabians, under the command of Ælius Gallus, has made us acquainted with many peculiarities of the country. Augustus Cæsar despatched this general to explore the nature of these places and their inhabitants, as well as those of Ethiopia; for he observed that Troglodytica, which is contiguous to Egypt, bordered upon Ethiopia; and that the Arabian Gulf was extremely narrow, where it separates the Arabians from the Troglodytæ. It was his intention either to conciliate or subdue the Arabians. He was also influenced by the report, which had prevailed from all time, that this people were very wealthy, and exchanged their aromatics and precious stones for silver and gold, but never expended with foreigners any part of what they received in exchange. He hoped to acquire either opulent friends, or to overcome opulent enemies. He was moreover encouraged to undertake this enterprise by the expectation of assistance from the Nabatæans, who promised to co-operate with him in everything.

23. Upon these inducements Gallus set out on the expedition. But he was deceived by Syllæus, the [king’s] minister of the Nabatæans, who had promised to be his guide on the march, and to assist him in the execution of his design. Syllæus was however treacherous throughout; for he neither guided them by a safe course by sea along the coast, nor by a safe road for the army, as he promised, but exposed both the fleet and the army to danger, by directing them where there was no road, or the road was impracticable, where they were obliged to make long circuits, or to pass through tracts of country destitute of everything; he led the fleet along a rocky coast without harbours, or to places abounding with rocks concealed under water, or with shallows. In places of this description particularly, the flowing and ebbing of the tide did them the most harm.

The first mistake consisted in building long vessels [of war] at a time when there was no war, nor any likely to occur by sea. For the Arabians, being mostly engaged in traffic and commerce, are not a very warlike people even on land, much less so at sea. Gallus, notwithstanding, built not less than eighty biremes and triremes and galleys (phaseli) at Cleopatris,[783] near the old canal which leads from the Nile. When he discovered his mistake, he constructed a hundred and thirty vessels of burden, in which he embarked with about ten thousand infantry, collected from Egypt, consisting of Romans and allies, among whom were five hundred Jews and a thousand Nabatæans, under the command of Syllæus. After enduring great hardships and distress, he arrived on the fifteenth day at Leuce-Come, a large mart in the territory of the Nabatæans, with the loss of many of his vessels, some with all their crews, in consequence of the difficulty of the navigation, but by no opposition from an enemy. These misfortunes were occasioned by the perfidy of Syllæus, who insisted that there was no road for an army by land to Leuce-Come, to which and from which place the camel-traders travel with ease and in safety from Petra, and back to Petra, with so large a body of men and camels as to differ in no respect from an army.