As the haughty monster approached the scene of her triumph, the shock of an unexampled cannonade checked her career. That little black turret poured out a fire so tremendous, so continuous, that the jubilant crew of the Merrimack faltered, surprised, terrified. The revolving tower was a marvel to them. One on board of her at the time has since told me, that, though at first entirely confident of victory, consternation finally took hold of all.

"D—n it!" said one, "the thing is full of guns."

An hour the contest raged, and then the iron scales of the invincible began to crumble under repeated blows thundered from that strange revolving terror. A slaughtering, destroying shot smashing through the port, a great seam battered in the side, crippled and defeated, the Merrimack turned prow and steamed away.

This was the end of her career, as really as when, a few weeks later, early morning saw her wrapped in sudden flame and smoke, and the people of Norfolk heard in their beds the report which was her death-knell.

So fear ended for a time, and the Monitor saw little service, until at Fort Darling she dismounted every gun, save one, when all her comrades failed to reach the mark. Then, a little worn by hard fighting, she went to Washington for some slight repairs, but specially to have better arrangements made for ventilation, as those on board suffered from the confined air during action.

The first of September a fresh alarm came, when she went down to Hampton Roads to meet the new Merrimack, said to be coming out, and stationed herself at the mouth of the James River, between the buried Congress and Cumberland, whose masts still rose above water, a monument of Rebel outrage and Union heroism. Here she remained expectant for more than two months, all on board desiring action, but thinking the new year must come in before anything could be done.

The last week in December found her lying under the guns of Fortress Monroe, and busily fitting for sea. Her own guns had been put in perfect working order, and shone like silver, one bearing the name of Worden, the other that of Ericsson. Her engineer, Mr. Campbell, was in the act of giving some final touches to the machinery, when his leg was caught between the piston-rod and frame of one of the oscillating engines, with such force as to bend the rod, which was an inch and a quarter in diameter and about eight inches long, and break its cast-iron frame, five-eighths of an inch in thickness. The most remarkable fact in this case is, that the limb, though jammed and bruised, remained unbroken,—our men in this iron craft seeming themselves to be iron.

The surgeon who examined the limb, astonished at the narrow escape, thought at first that it might, by energetic treatment, be cured in a few days; and as the engineer, who had been with the vessel from her launching, was extremely anxious to remain on board, he was disposed at first to yield to his wishes, but afterwards, reflecting that confined air and sea-sickness would have a bad effect, concluded to transfer him to the hospital, the engineer remarking, as he was carried off,—"Well, this may be Providential."

It was Providential indeed!

His place was filled, and the preparations went on briskly. The turret and sight-holes were calked, and every possible, entrance for water made secure, only the smallest openings being left in the turret-top, and the blower-stacks, through which the ship was ventilated. On the afternoon of December 29, 1862, she put on steam, and, in tow of the Rhode Island, passed the fort, and out to sea under sealed orders.