Later in the afternoon, when word was brought that the enemy had landed a body of troops at, or near Dobbs Ferry, he ordered General Heath to dislodge them. Heath acted upon this occasion, with his usual promptness. Without a moment's delay, he placed Colonel Sargeant, at the head of a force, consisting of five hundred infantry, forty lighthorse, two companies of artillery, having with them two twelve pounders, and a howitzer, ordering him to march im-mediately upon Dobbs Ferry, with all possible expedition, and to drive the British back to their vessels. Before these troops could reach the ferry, a party from one of the frigate's boats, had plundered and set on fire a Continental store house situated there, and had then withdrawn. The British works across Manhattan Island were completed about the 10th of October, and General Howe determined to prosecute without delay, his movement against the rear of the Americans; while Lieutenant-general Earl Percy, with two brigades of British and one of Hessians, remained in the redoubts for the protection of New York. Eighty or ninety flat boats and small vessels, were assem-bled at Kipp's Bay; and on the night of the 11th, an embarka-tion of the troops was made, under the direction of Commo-dore Hotham. Early in the morning of the 12th the fleet sailed down the Sound. A thick fog prevailed, when the boats entered the then dangerous passage that conducted through Hellgate. Several boats, caught in one of the whirl-pools, and carried round and round toward the center, were