On September 29th the besiegers were principally employed in reconnoitring the situation of the enemy and in arranging their plans of attack. The main body of the enemy was found intrenched in the open ground about Yorktown, with the intention of checking the progress of the allies, while an inner line of works, near the village, had been provided for his ultimate defence; Lieutenant-Colonel Simcoe, with his legion, the Eightieth regiment of the line, and the Hereditary Prince's regiment of Hessians, the whole under Lieutenant-Colonel Dundas, being in possession of Gloucester Point. The only movement was an extension of the right wing of the allied armies, and the consequent occupation of the ground east of the Beaver-dam Creek, by the American forces. On the evening of that day Lord Cornwallis received despatches from New York in which Sir Henry Clinton advised his lordship that "at a meeting of the general and flag officers, held this day (September 24, 1781) it is determined that above five thousand men, rank and file, shall be embarked on board the King's ships, and the joint exertions of the navy and army made in a few days to relieve you, and afterward to operate with you. The fleet consists of twenty-three sail of the line, three of which are three-deckers. There is every reason to hope that we start from hence October 5th." Gratified with this promise of assistance, and probably confident of his ability to hold his inner position until he could be relieved, Lord Cornwallis imprudently retired from the outer line of works which he had occupied, and on the same night (September 29th) occupied the town, leaving the outer lines to be occupied by the allies, without resistance, on the next day. On September 30th the allies occupied the deserted positions, and were thereby "enabled to shut up the enemy in a much narrower circle, giving them the greatest advantages." Before the allies moved to the positions which had been thus deserted, Colonel Alexander Scammell, the officer of the day, approached them for the purpose of reconnoitring, when he was attacked by a party of the enemy's horse, which was ambushed in the neighborhood, and, after being mortally wounded, was taken prisoner. On the same day the transports, having on board the battering-train, came up to Trubell's, seven miles from York, whence they were transported to the lines; and the lines were completely and effectively occupied. The French extended from the river above the town, to a morass in the centre, while the Americans continued the lines from the morass to the river, below the town, the whole forming a semicircle, with the river for a chord. On the same day the Duc de Lauzun, with his legion of cavalry, and General Weedon, with a body of Virginian militia, the whole under Sieur de Choisy, invested Gloucester, in the course of which a party of the Queen's Rangers, which had been sent out to observe the movements of the allies, was driven in with considerable loss.