The fort on the Hook at once opened upon her, but the shot glanced like dry peas from her armor. She, in return, shelled the fort, the masonry of which literally crumbled before the enormous projectiles hurled against it. Meanwhile, the launches had entered the channel and were picking up such torpedoes as could be detected. Other launches, having no crews on board, but being governed entirely by electric wires, were sent into the channel and caused to drop counter mines, which, on being fired, caused the explosion of such torpedoes as remained: thus making a broad and safe channel for the ironclad to enter. Finally the remaining launches returned to the "Cid" and evidently reported the channel clear for she boldly steamed into it, stopping only for an instant, when off the end of the peninsula, to send a double charge of grape and canister from her huge guns into the ranks of the fugitives, who were precipitately rushing from the fort. It was then that General Hancock was killed although the fact has since often been disputed. His body, wounded in a dozen places, was found on the sand near the highest wall of the fort, from the top of which, it is conjectured, he was swept by the fearful hail of the Spanish ironclad. "El Cid" continued on into the bay, occasionally stopping as signaled by the launches preceding her, when a torpedo was encountered, and finally took up her position within about a mile of Fort Hamilton, and hence about seven miles from the Battery. As the projectiles from the fort glanced harmlessly from her armor, she paid no attention to that attack, but resumed her fire upon the city. Shells now began to fall as far up-town as Forty-second Street. V. AT THE MERCY OF THE FOE. Meanwhile, the other four vessels had ceased their bombardment of the batteries, as the latter no longer answered them. They appeared to have new work in hand. During the following afternoon a fresh sea-breeze set in. Then a large, swaying globe made its appearance on the deck of each of the vessels. Examination with the telescope showed to the signal men, who had established a new station on the Jersey highlands, that these mysterious spheres were balloons; and that the ships were about to dispatch them, was evident from the fact that small pilot-balloons were soon sent up. These last were wafted directly toward the city. What possible object could the Spanish war-vessels have in this, was a question asked by every one, as soon as the intelligence became known. The balloon which rose from the "Numancia" had a car attached, but there was clearly no one in it. Therefore the balloons were not to be used for purposes of observation. The people in New York saw the balloons as they successively rose from the four vessels, and wonderingly watched their progress.