Later, in the middle of August, a reserve of 600 men was ordered “to remain in the trenches the twenty-four hours, and will be planted during the day in such spots in the 1st parallel or other places of security as may be pointed out by the Generals of the Attacks. Troops not on duty are to remain in camp till further orders” (_Head-quarter Memo._ , Aug. 16th). _Head-quarter Memo._ , Aug. 17th: “A steady fire of musketry, by riflemen and good shots, must be kept up during the night, from the advanced trenches of both Attacks on the Redan and works in rear and flank. The object being to prevent the enemy from repairing the damage done to their works. The artillery should assist this as much as possible by throwing light balls.” Colonel Tower says that, on August 21st, he was in the 5th parallel, and that he was ordered to keep up a heavy fire all night on the embrasures. 75,000 rounds were fired from the trench in which he was stationed. He also says that the custom in the middle of August, was to withdraw the guards of the trenches to a position in rear, and to leave an Officer and small party in the advanced line to watch the enemy’s works, and to fire at the embrasures when any one showed himself (Tower, _Diary_ ). Towards the end of August, and during the beginning of September, more men were employed. There was a party for the trenches 2800 strong, the guard as before 2400, and the special working party, 400 men. During this period, more than one division furnished the necessary daily number required. ----- It should be noticed here, that the Guards Brigade, on August 31st, exchanged the whole of their arms and ammunition for the new Enfield rifle then introduced, and that, at this time, there were two patterns in use by the troops of the British army standing before Sevastopol.[333] ----- Footnote 333: “After 5 p.m. on the 28th inst. the small-arm ammunition magazine on the right of the eight-gun battery in the Right Attack will contain only Enfield rifle ammunition, pattern 1853, bore ·577; the three other magazines will still be supplied with Minié rifle ammunition, pattern 1851, bore ·᛫702.” -----