While these discussions were going on, the tide of Mahdism steadily flowed northwards. To meet a possible attack upon Egypt proper, the bulk of the Khedive’s army, then in process of reorganisation by British officers, was hurried to Assouan, where it was strengthened by English battalions; the Nile was patrolled by steamers manned by the navy; and irregular levies of Bedouins, also commanded by British officers, were pushed up the river into Dongola, the most southern portion of the Egyptian dominions in which the authority of the Khedive was still recognised. Dongola was ruled by a Mudir who, though originally in sympathy with the Mahdi, had been won back by golden arguments to the cause of his Suzerain. In the course of the summer his territory was attacked; it was considered necessary to help him with British bayonets, and the 1st battalion of the Royal Sussex regiment was moved southwards from Assouan. On the 8th of August, only eight days before the Royal Sussex reached the town of Dongola, a vote of credit was obtained from the House of Commons to cover the expense of sending troops to the assistance of the Mudir; but though by this vote government definitely committed itself to the Nile route, and therefore to the use of small boats, it was not until the 12th that official sanction was given for the construction of these craft. Four hundred were then ordered, and in a few days the number was doubled. The boats were to carry twelve men with their equipment, ammunition, and rations; to be suitable alike for rowing, sailing before a wind, and tracking (_i.e._, being hauled up stream from the bank), for ascending and descending rapids, and for passing over shallow and rocky places in the river: to be as light as possible, yet strong enough to be dragged over short stretches of ground to avoid cataracts; and to be 32 feet in length, 6 feet 9 inches in breadth, and only 2 feet 6 inches in depth. The first consignment reached Alexandria on September 22, the last on October 18, 1884.