One should perhaps apologize for reopening the question of Hannibal's route over the Alps after the publication of Sir Gavin de Beer's recent book. It is, however, a perennially fascinating problem, and some of de Beer's points are not entirely satisfactory, though I accept his main conclusion. The cruces of the argument, as I see them, are: (1) the crossing of the Rhone; (2) the position of the Island; (3) the river Isaras/Skaras; (4) the two passes, the first where Hannibal was attacked by the Allobroges from the front, and the second the main Alpine pass into Italy; (5) the attack in the gorge by local tribesmen on his approach to the main pass; (6) did Hannibal cross the Durance?