evacuated also. Lord Cornwallis marched against it; but the garrison retreated before his arrival.
The American shipping in the river, being now left unprotected, retired up the stream: part of it, by keeping close to the Jersey side, passed the batteries at Philadelphia during the night, and escaped; the rest was set on fire, and abandoned. Even the part of it, however, which escaped at this time, was afterwards destroyed. Thus the navigation of the Delaware was opened, and a free communication established between the fleet and army; but the defence of the river was so obstinate, that a considerable part of the campaign was wasted in clearing it.
Washington having received a reinforcement from the northern army, after the termination of the campaign in that quarter, left his strong camp at Skippack Creek, and, advancing nearer the British, occupied an advantageous position at White Marsh, fourteen miles from Philadelphia. He had a valley and rivulet in front, and his right was protected by an abattis, or fence of trees cut down, with their top branches pointed and turned outwards.
Sir William Howe thinking that Washington, encouraged by his reinforcements, would hazard a battle for the recovery of the capital of Pennsylvania, or that a successful attack might be made on his position, marched from Philadelphia on the evening of the 4th of December, and next morning took post on Chestnut Hill, in front of the right wing of the American army. During the two succeeding days, General Howe made several movements in front of the hostile encampment, and some skirmishing ensued. But Washington remained within his lines; and Howe, deeming it unadvisable to attack him there, and seeing no probability of being able to provoke him to engage on more equal terms, returned with his army, on the 8th of December, to Philadelphia. At that time, the two armies were nearly equal in point of numerical force, each consisting of upwards of fourteen thousand men. Soon afterwards General Washington determined to quit White Marsh, and go into winter-quarters at Valley Forge, about twenty miles from Philadelphia.
During the active part of the campaign, the British army was most numerous; and although, in the beginning of December, the numerical force of the two armies was nearly equal, yet there was a great difference in the quality and equipment of the troops. Those under Howe were veterans, accustomed to the most exact discipline and subordination, well armed, and abundantly supplied with military stores and other necessaries: but those under Washington, were, for the most part, raw levies and militia, ill-disciplined, imperfectly armed, and strangers to military subordination; hence, the Americans were unable to meet the royal troops on equal terms. Washington was obliged to occupy strong positions, and to be wary in all his movements: he was beaten at the Brandywine, and repulsed at Germantown: on the other hand, although Howe was successful in all his operations, yet he gained nothing by the campaign, but good winter-quarters in Philadelphia.
