Note 106 — Chapter II · ILLUSTRATION OF THE ANCIENT GEOGRAPHY OF THE CENTRAL PART OF ASIA MINOR.

Polyb. l. 22. c. 20. Liv. l. 38. c. 18. Strabo, p. 567. Herodian (in the Life of Commodus) says that Pessinus was on the Gallus: but we know from Strabo that the Gallus was that branch of the Sakaría which waters the valley of Léfke. The mistake of Herodian is easily accounted for:—The Gallus being a very important branch of the Sangarius, the united stream was often known by the former name; as we observe in Ammianus,—who in coupling the Gallus with the lake Sophon, which we know from some passages in the Byzantine history to have been the lake of Sabanja,—evidently means by the Gallus the lower part of the Sangarius. In process of time the name Gallus became applied to the whole course of the Sangarius as far as its sources. The same thing happened to the Scamander at Troy, the name of which between the time of Homer and that of Antiochus the Great had become attached not only to the part below the junction of the two rivers, but to that also above it, as far even as the sources of the Homeric Simoeis.