But the Americans were cautious. While stricken the undersea craft might show fight. So with guns and torpedo-tubes trained upon the submarine, they waited. But there was no fight in that boat. The depth charges had done their work thoroughly. While the visible portion of the hull appeared to have been uninjured, it was perfectly clear that the vessel was not under perfect control. Her ballast-tanks were damaged, which accounted for a bad list. The explosions of the depth-bombs had hurled her to the bottom, where she retained sufficient buoyancy to catapult to the surface. As the conning-tower came into sight the _Nicholson_ fired three shots from her stern gun. The U-boat then seemed to right herself, making fair speed ahead. The _Fanning_ headed in toward her, firing from the bow gun. After the third shot the crew of the German vessel came up on deck, their hands upraised. While approaching the craft both the destroyers kept their guns trained for instant use, but, as it turned out, precautions were unnecessary. Lines were thrown aboard the submersible and were made fast; but the U-boat, either stricken mortally or scuttled by her crew, began to settle. Lines were hastily cast off, and the boat sought her long rest upon the bottom of a sea to which no doubt she had sent many harmless vessels. The crew of the U-boat, all of whom had life-preservers about their waists, leaped into the water and swam to the _Fanning_; most of them were exhausted when they reached the destroyer's side. As the submarine sank, five or six men were caught in the wireless gear and carried below the surface before they disentangled themselves. Ten of the men were so weak that it was necessary to pass lines under their arms to haul them aboard. One man was in such a state that he could not even hold the line that was thrown to him. Chief Pharmacist's Mate Elzer Howell and Coxswain Francis G. Connor thereupon jumped overboard and made a line fast to the German. But he died a few minutes after he was hauled aboard. Once aboard, the prisoners were regaled with hot coffee and sandwiches, and so little did they mind the change to a new environment that, according to official Navy Department report, they began to sing. They were fitted with warm clothes supplied by the American sailors, and in other ways made to feel that, pirates though they were, and murderers as well, the American seafaring man knew how to be magnanimous.