THREE:On the 12th of October General Howe, who would have been better employed in driving the enemy before him than in waiting for his brother's useless negotiations, sent a considerable part of his forces, with flat-bottomed boats, through Hell Gate into the Sound, and landed them at Frog's Neck, about nine miles in the rear of Washington's position, thus cutting off all his supplies from the country. The ships ascended higher up the North River, cutting off the retreat into the Jerseys. Had Howe, instead of landing at Frog's Neck, done so at Pell's Point, he would have rendered Washington's retreat nearly impossible. But this was neglected till the 18th of October, by which time Washington, finding that he was getting gradually hemmed in, and Lee, who had now joined him from Sullivan's Island and the Carolinas, insisting that nothing but instant retreat could save them, they therefore made a rapid retreat into the open country called the White Plains. They had much difficulty in carrying away their artillery; and the whole of it must have been taken, had Howe shown any ordinary activity. Between this date and the 21st there was considerable skirmishing, which compelled Washington to retire farther into the White Plains, and from thence towards the Delaware.