Though gen. Cadwallader did not pass over the Delaware at the time intended, yet the day after the surprise [Dec. 27.] he crossed about two miles above Bristol, with 1500 men, imagining that gen. Washington was still on that side. Receiving intelligence that the enemy had left Mount Holly, he determined upon proceeding to Burlington (even after learning that the successful troops had re-crossed) and upon marching the next day to Bordentown; which was accordingly done, the enemy going off in the utmost confusion on the alarm of his approach. The day he crossed, 500 men were sent from Philadelphia, who passed over to Burlington on the morning of the 28th; in the evening gen. Mifflin sent over 300 more, and soon followed with a further reinforcement of some hundreds, designing to join gen. Cadwallader as soon as possible. Pennsylvania was now roused, and coming in great numbers to the aid of the commander in chief. On the last mentioned day, gen. Greene crossed afresh into the Jerseys with 300 militia. The time for which many of the militia were to serve, was just expiring. In order to prevail with them to continue, they were harangued. Their pride was addressed. They were told that if they withdrew, it would be charged upon them that they were afraid. Application was artfully made to every passion; and not altogether in vain. [Dec. 29.] General Washington reached Trenton with about 1800 continentals. Twelve hundred of them were released from their enlistment the first of January. Attempts were made to engage them to continue a month or six weeks longer. Ten dollars extra pay was offered; they took the bounty, and near one half went off in a few days after, before the critical moment arrived: It was soon debated whether to order up the Pennsylvania militia from Bordentown, Mount Holly, and elsewhere, to join general Washington. Gen. Knox had prepared Dr. Rush, a member of congress, to assist in effecting the scheme. He was asked in to give his opinion, and declared in favor of ordering them up, which was then done. [Jan. 1, 1777.] The junction of the militia with the continentals (making in the whole about 5000 men) emboldened the latter to remain in their position after hearing that the enemy was advancing toward them. The alarm which had been given, induced the British and auxiliary troops to assemble; and general Grant, with the forces at Brunswick and in that quarter, marched speedily for Princeton. Lord Cornwallis was gone to New-York in his way to Great-Britain; but upon this unexpected turn of affairs, concluded upon deferring his voyage, and returning to the defence of the Jerseys. He pressed on with the greatest expedition; left the fourth brigade, consisting of the 70th, 40th, and 55th regiments, under the command of lieut. col. Mawhood, at Princeton, and the second brigade, under general Leslie, at Maidenhead, and joined the main body by the time they got near Trenton.