that the herald should repeat the very same reproaches which he had himself made to Bessus in his inquiry. After being thus disgracefully tortured, he was sent away to Bactria to be put to death. Such is the account given by Ptolemy in relation to Bessus; but Aristobulus says that Spitamenes and Dataphernes brought Bessus to Ptolemy, and having bound him naked in a wooden collar betrayed him to Alexander.[502] Alexander supplied his cavalry with horses from that district, for many of his own horses had perished in the passage of the Caucasus and in the march to and from the Oxus. He then led his army to Maracanda,[503] which is the capital of the land of the Sogdianians. Thence he advanced to the river Tanais. This river, which Aristobulus says the neighbouring barbarians call by a different name, Jaxartes, has its source, like the Oxus, in mount Caucasus, and also discharges itself into the Hyrcanian Sea.[504] It must be a different Tanais from that of which Herodotus the historian speaks, saying that it is the eighth of the Scythian rivers, that it flows out of a great lake in which it originates, and discharges itself into a still larger lake, called the Maeotis.[505] There are some who make this Tanais the boundary of Europe and Asia, saying that the Palus Maeotis, issuing from the furthest recess of the Euxine[506] Sea, and this river Tanais, which discharges itself into the Maeotis, separate Asia and Europe,[507] just in the same way as the sea near Gadeira and the Nomad Libyans opposite Gadeira separates Libya and Europe.[508] Libya also is said by these men to be divided from the rest of Asia by the river Nile. In this place (viz. at the river Tanais), some of the Macedonians, being engaged in foraging, were cut to pieces by the barbarians. The perpetrators of this deed escaped to a mountain, which was very rugged and precipitous on all sides. In number they were about 30,000. Alexander took the lightest men in his army and marched against these. Then the Macedonians made many ineffectual assaults upon the mountain. At first they were beaten back by the missiles of the barbarians, and many of them were wounded, including Alexander himself, who was shot right through the leg with an arrow, and the fibula of his leg was broken. Notwithstanding this, he captured the place, and some of the barbarians were cut to pieces there by the Macedonians, while many also cast themselves down from the rocks and perished; so that out of 30,000 not more than 8,000 were preserved.[509] BOOK IV. CHAPTER I. REBELLION OF THE SOGDIANIANS.