to attack the railway in the grand manner. To relieve him of the burdensome Harb tribes, his young half-brother Zeid was on the way up from Rabegh to Wadi Safra, as a nominal subordinate of Sherif Ali. The advanced Harb clans were efficiently harrying the Turkish communications between Medina and Bir Abbas. They sent in to Feisal nearly every day a little convoy of captured camels, or rifles picked up after an engagement, or prisoners, or deserters.
Rabegh, shaken by the first appearance of Turkish aeroplanes on November the seventh, had been reassured by the arrival of a flight of four British aeroplanes, B.E. machines, under Major Ross, who spoke Arabic so adeptly and was so splendid a leader that there could be no two minds as to the wise direction of his help. More guns came in week by week, till there were twenty-three, mostly obsolete, and of fourteen patterns. Ali had about three thousand Arab infantry; of whom two thousand were regulars in khaki, under Aziz el Masri. With them were nine hundred camel corps, and three hundred Egyptian troops. French gunners were promised.