He then taught physics in Cyzicus and the Propontis, and subsequently, accompanied by a number of pupils, went to Athens.
The length of the Propontis from the Troad to Byzantium is stated to be 1500 stadia.
Then the parts below the Propontis, extending as far as Lectum.
Thence they sailed along the Propontis and the coast of Mysia, not, as we may be sure, without adventures.
