THE MERRIMAC AND THE MONITOR.
Up to this time all war vessels were built of wood; but there had been many experiments to learn whether they might not be protected by iron plating. The first iron-clad ship was built in France in 1858; and not long after that Great Britain added to her navy an entire fleet of iron-clads. All these were built after the same pattern as wooden ships, and were simply covered or protected with iron plates.
THE BATTLESHIP OREGON.
The first iron-clads used in our own navy were built soon after the beginning of the Civil War (1861), and were designed for use on the large rivers and along the coast. They were called "turtle-backs," and were simply large steamboats covered with thick slabs of iron and carrying thirteen guns each. The iron slabs were joined closely together and laid in such a manner as to inclose the decks with sloping sides and roofs. The first great deviation from old patterns was the Monitor, built by John Ericsson in 1862. She was the strangest looking craft that had ever been seen, and has been likened to a big washtub turned upside down and floating on the water. The Merrimac, which she defeated in Hampton Roads, was a wooden frigate which the Confederates had made into an iron-clad by covering her with railroad rails. They had also, by giving her an iron prow, converted her into a ram. These two vessels, the Monitor and the Merrimac, were indirectly the cause of a great revolution in naval warfare; they were the forerunners of all the modern ships of war now in existence. The nations of the world saw at once that there would be no more use for ships of the line and wooden frigates and sloops of war.
THE DYNAMITE CRUISER VESUVIUS.
The ships that have been built since that time are entirely unlike those with which Paul Jones and Commodore Perry and Admiral Farragut won their great victories. The largest and most formidable of the new vessels are known as battleships, and may be briefly described as floating forts, built of steel and armed with powerful guns. These are named after the states, as the Oregon, the Texas, and the Iowa. Next to them in importance are the great monitors, such as the Monadnock and the Monterey. These are slow sailers but terrible fighters, and are intended chiefly for harbor defense. The cruisers, which rank next, are smaller than battleships and are not so heavily armed; but they are built for speed, and their swiftness makes up for their lack of strength. Among the most noted of these are the Brooklyn, the Columbia, and the Minneapolis. There are also smaller cruisers, such as the Cincinnati and the Raleigh, that are intended rather for scout duty than for service in battle. Most of the cruisers are named after cities. One of the strangest vessels in the navy is the dynamite cruiser Vesuvius, which is armed with terrible dynamite guns. Then there is the ram Katahdin. She carries no heavy guns, and her only weapon of offense is a powerful ram. Her speed is greater than that of most battleships, and she is protected by a covering of the heaviest steel armor. Besides all these there are a number of smaller vessels, such as torpedo boats and tugs.
A few old-fashioned wooden vessels—steam frigates and sailing vessels—are still to be found in our navy yards, but these would be of no use in a battle.
In reading of the exploits of our great naval heroes it is well to keep in mind these wonderful changes that have taken place in the navy. Think of the slow-going wooden frigates which sailed the seas in the time of Paul Jones or Commodore Perry—how small and insignificant they would be if placed side by side with the tremendous Oregon or with the cruisers which Admiral Dewey led to victory in the Bay of Manila! But if the glory of an achievement is measured by the difficulties that are encountered and overcome, to whom shall we award the greater honor—to our earlier heroes, or to our later?