In September preparations for the battle of Loos began. The Third Army was not involved in this attack. Efforts were, however, made to lead the enemy to anticipate an offensive in this sector, so as to make him unwilling to transfer reserves from this front to the scene of the actual operations. Accordingly on 21st September work was begun on preparing the sector for attack. Sap-heads and forming-up places were constructed, while the artillery carried out wire-cutting and bombardment. On 25th September the combined British and French attack was launched at Loos. On the 26th preparations for attack were discontinued in the Divisional sector. On the 27th the allowance of ammunition was reduced to the minimum requirements necessary for retaliation. During the sojourn of the Division in this part of France bombardments of villages in the back areas occurred fairly frequently--Henencourt (Corps Headquarters), Aveluy, Authuille, Albert, and Martinsart all receiving attention. The enemy was particularly lucky with one heavy shell which he fired into Authuille on 29th November. It burst close to a working party of the 5th Seaforths, who had just fallen in to draw tools from a dump, and wounded 26 of them, including 2 officers. On 18th September Martinsart was bombed by a hostile aeroplane, in those days a most unusual occurrence. On Christmas Day a curious exchange of compliments took place with the enemy. On Christmas Eve he sang carols; this was at once stopped by the Divisional artillery. He then came out of his trenches to fraternise; this was also stopped by the Divisional artillery. He retaliated by shelling Albert; the Division on the right immediately shelled Courcelette. The enemy then shelled Aveluy; the gunners replied by shelling Pozières. The enemy had the last word, for he then shelled Martinsart, where he hit a horse, a mule, and a limber loaded with grenades, which fortunately did not burst. While the Division was in this sector various other New Army Divisions, as has been mentioned, were attached to it for periods of instruction in the line. The men did not fail to make the most of the fact that they had been selected as instructors for the rival organisation, the New Armies, and it was a matter of great satisfaction to them to find that they had been chosen for the work. On 2nd August the Divisional artillery had taken over from the French, and taken into the line six batteries of the 18th Division, who were attached for instruction. The artillery were particularly jealous of the 18-pounders with which their pupils were armed, while they were still equipped with the obsolete 15-pounder. The same night the 53rd Infantry Brigade Group, 18th Division, also moved into the line to begin a period of attachment to the 51st Division for instruction in trench warfare. Other units of the 18th Division followed, and carried out similar periods of instruction in the line.