During these operations General Hornby had been in command of the division, but on March 23 General Feetham returned from leave and took over the duties. All day the Thirty-ninth Division was fighting rearguard actions as it fell back upon the Somme. In the course of them General Hornby, now in command of the 116th Brigade, was severely wounded. The roads running westwards to Peronne and Clery were crowded with traffic, but the Thirty-ninth Division turned at bay again and again, giving them time to get clear. By evening the remains of the Sixteenth Division had been practically squeezed out of the line, and the Thirty-ninth had the Sixty-sixth Division on its right and the Twenty-first on its left. At night it held a line from La Maisonnette along the canal to south of Ommiecourt. The enemy appeared to be much exalted by the capture of Peronne, and the 118th Brigade {119} on the right heard them singing lustily during the night. [Sidenote: Seventh Corps. March 23.] On March 23 the German attack continued to be very heavy upon the front of the two Scottish brigades of the Ninth Division, which were in touch with the Fifth Corps in the north and with the Twenty-first Division in the south. So close and violent was the fighting that the 6th Scots Borderers were only extricated with difficulty. At 2 P.M. the line was east of Bouchavesnes, but by 4 P.M. the Twenty-first Division on the right had lost ground, and the flank and even the rear of the Ninth was for a time exposed until the Natal Regiment was thrown out south of Bouchavesnes to cover it. The three brigades of the Twenty-first Division were engaged all day as they slowly retreated before the swarming enemy. March 23 was a most arduous day for both the Highland and the Lowland brigades, for each of them was attacked again and again with the utmost violence. Though the attacks were repulsed each of them had the effect of weakening still further these units which were already much exhausted by hard fighting and incessant exertion. Gradually they were pushed to the westward until they found themselves lining the eastern edge of St. Pierre Vaast Wood, and manning the ridge which extended from that forest to the ruins of Saillisel. Their left at this period seems to have been in the air, as the 99th Brigade had been returned to its division, and they had failed to make contact with the Seventeenth Division, who were at the time just west of Saillisel. At this period the front of the Ninth Division seems to have covered 11,000 yards, and to have extended for at least two miles into the area of the Third Army, {120} showing how desperate were the exertions needed to cover the ground and to prevent a break through. [Sidenote: Seventh Corps. March 24.]