The flagship New York was leading the fleet, which, as before, soon ranged up in a semicircle. Inside of five minutes every vessel had her station.

"Cast loose and provide!"

The now familiar cry was scarcely needed, for the jackies were already at work, stripped, as before, of all their superfluous clothing. Shot and powder were quickly handled, and the flagship began the firing, which immediately broke forth in all its fury, deafening everybody and sending forth a great cloud of smoke which hung over the warships like a pall.

"Morro's flag is down!" came the shout. It was true. A gunner on the noble Oregon had taken careful aim and cut the flagstaff in two. The falling of the Spanish emblem was greeted with a wild cheer. At once the Spaniards tried to put another flag up, but it was some time ere they succeeded, and then it was a tiny affair, hardly visible excepting with a glass.

"We'll try for that battery yonder!" exclaimed Caleb, during the height of the bombardment. "I think those fellows have been firing this way ever since they started."

He had scarcely spoken when bang! something hit the armor plate directly under their gun, hurling the gunner, Walter, and several others back by the shock.

"They've struck us, but the shot didn't pierce our armor," remarked Caleb, calmly, as he got up. "All right, you villains, here's the compliment returned!" And he made his preparations with care.

The shot following was the best they had yet placed. It struck into a battery on the west shore of the harbor entrance, ploughed up the foundation of a six-pound gun, and sent the piece flying high into the air.

"My, but that was immense!" cried Walter, while Si and the others cheered wildly. "Give them another!"

And they did give the battery another, and then a dozen more, until at last the place was silenced, showing that what was left of the gunners had fled.