"You can get them easily enough," said Rear-Admiral Sampson, with a smile. "I know a hundred men on the _New York_ who will be only too anxious to go, no matter how dangerous the mission." Volunteers were called for, and, to the credit of our navy, be it said, that the crews of the different ships offered themselves almost to a man. "We can die only once," said one old gunner; "take me!" "I'd like to go, captain," said Caleb, appealing to Captain Cook. "Can't you put me on the list somehow?" "I'll go," said Walter, readily, and Si said the same. Paul was so young that he knew they would not take him. Of course where only seven men were wanted and hundreds had begged to be allowed to go there were numerous disappointments. At last the list was made up of the following--names to be remembered by every patriotic young American: Lieutenant Hobson, in command; O. W. Deignan, helmsman; G. F. Phillips, engineer; F. Kelley, fireman; J. Murphy, coxswain; G. Charette, mine batteries; D. Montague, anchor hand; R. Clausen, extra wheelman. The men were all experienced sailors, and fully realized the extreme peril which awaited them, when they should run the _Merrimac_ in directly under the fire of Morro Castle and the La Zocapa battery. A start was made late on Wednesday night, the _Merrimac_ cruising up and down before the harbor entrance, trying to gain a favorable opportunity for entering. But none showed itself, and by orders of the rear-admiral the attempt was postponed until the night following. In the meantime a catamaran was built and attached to the _Merrimac's_ side, to be used in getting away in case the small boats became disabled when the craft was wrecked. CHAPTER XVII IN WHICH THE "MERRIMAC" IS SUNK "It's too bad we can't get places on the _Merrimac_," observed Walter to Si, as the two walked to their quarters after the selection of men had been made. "If Lieutenant Hobson succeeds in getting the collier up in the harbor entrance and sinking her, it will be a big feather in his cap." "My idea is that the heavy guns of old Morro will blow the _Merrimac_ clean out of the water before she gets within quarter of a mile of where she is to be sunk," answered the Yankee lad. "Those on board are running the greatest risk of their lives." "But the glory, Si!" "No glory if you're killed." "But you said you would go." "So I would--but I wouldn't expect to come back alive. I'll wager we never see Hobson again, nor none of his men." The fierce heat of the day had given Walter a headache. As evening came on it grew worse, and he was not able to sleep during the night. "I hope I'm not getting the Cuban fever," he remarked to Caleb, who had offered several simple remedies ready at hand. "Better report and go on the sick list," advised the old gunner. "If it's fever, the sooner you take it in hand the better."