or Assos, in Ancient Geography, a town of Troas (though by others supposed to be of Mytilene), and the same with Apollonia (Pliny); but different from the Apollonia on the river Rhynchus. Ptolemy places it on the sea-coast, but Strabo more inland; if he does not mean the head of an inland bay, as appears from Diodorus Siculus. It was the country of Clearchus, the Stoic philosopher, who succeeded Zeno. St Luke and others of St Paul's companions, in his voyage (Acts xx. 13, 14.), went by sea from Troas to Alos; but St Paul went by land thither, and meeting them at Alos, they all went together to Mytilene. It is still called Alos. E. Long. 27. 3. N. 38. 30.