Still with the idea of holding the enemy to his ground a demonstration was made on the 13th of October by the IIIrd and Indian Corps. On the 20th Division front the line of the 60th Brigade near Mauquissait was chosen as the scene of a feint attack in which the assaulting troops were to be represented by dummies. During the preceding night a false parapet was built across a re-entrant in the line. At 7 A.M. on the 13th the Divisional Artillery opened fire, cutting the wire very effectively and shelling various points in rear of the German position. The intense bombardment which begun at 12.30 P.M. badly damaged the enemy’s front line, and one gun firing on certain of his trenches in enfilade is believed to have caused much loss to his troops as they manned the parapet. At the same time a smoke barrage was started along the whole of the 60th Brigade front. Boxes of free phosphorus had been put out during the night between the lines and these were fired electrically from the trenches, while catapults and trench mortars helped by throwing smoke bombs. The screen was very effective, and covered the front with a thick cloud for nearly two hours. The 60th Brigade front line was at this time held by the 6th K.S.L.I. on the right, the 11th D.L.I. in the centre, and the 12th R.B. on the left. Two battalions--the D.L.I. and the R.B.--used dummies which were made of sacks stuffed with straw and clothed with old salvaged greatcoats and with caps either salvaged or else lent by the men. On the front of the D.L.I. the smoke was too thick for the dummies to be seen except for the first few minutes, when they were effectively used. Opposite the 12th R.B. on the left the smoke was not continually dense, and in the clearer intervals the dummies were a great success. They were stuck on bayonets, put over the parapet and then withdrawn; they were rolled over the parapet as if shot, and then pulled back by strings when the smoke became thick again; they were poked out of the sally ports, moved up and down n sap in front of the trenches and laid out in ditches in front so as to be just visible.