Page:The Hessians and the other German auxiliaries of Great Britain in the revolutionary war.djvu/272

 248 Communication between Fort Moultrie and Charleston was now cut off. The British fleet, however, found its progress further barred by a line of sunken hulks, and could not sail up the Cooper River and take the American works in their rear. As some of the ships in that river interfered with the operations of the besiegers, several large row-boats were hauled overland to operate on it, the vehicle used for this purpose being dragged by one hundred and thirty-four negroes. Work on the approaches went on unceasingly, but the siege was somewhat delayed by the fact that some of the heavy artillery and most of the horses had been lost at sea. The place of the siege-train was supplied by cannon from the ships, brought with great labor overland from James Island. On the 13th of April hot shot were fired by the Hessian artillery, and several houses caught fire. Sir Henry Clinton ordered his batteries to slacken their fire, that the flames might be extinguished. On the following night the second parallel was opened, and soon after this counter-approaches were begun by the Americans, so that not only artillery, but musket-balls, could be brought to bear. On the 20th, however, the siege-works had so far advanced that the chasseurs were able to pick men off in the embrasures of the fortifications, and render the service of the guns very dangerous. The third parallel was opened in the following night, and on the 21st, Lincoln, who had refused to surrender on the day after