MAIL-CLAD STEAMERS.
Exposed as we are to treason at home and jealousy abroad, it becomes the policy as well as the duty of our country to prepare with promptitude for every contingency by availing itself of all improvements in the art of war. Superior weapons double the courage and efficiency of our troops, carry dismay to the foe, and diminish the cost and delays of warfare. The match-lock and the field-piece in their rudest form triumphed over the shield, the spear, and the javelin, while the long-bow, once so formidable, is now rarely drawn, except by those who cater for sensation-journals. The king's-arm and artillery of the last war cannot stand before the Minié rifle and Whitworth cannon any more than the sickle can keep pace with the McCormick reaper, or the slow coach with the railway-car or the telegraph. Mail-clad steamers, impervious to shells and red-hot balls, and almost, if not quite, invulnerable by solid shot and balls from rifled cannon at the distance of a hundred yards, have been launched upon the deep, and already form an important part of the navies of France and England. They have been adopted by Russia, Austria, and Spain; and yet, although our country furnishes iron which has no superior,—although it has taken the lead in the steamship, the telegraph, and the railway,—although at this moment it requires the mail-clad steamer more than any other nation, to relieve its fortresses, to recover the cotton ports, and to defend its great cities from foreign aggression, not a single one has yet been launched, or even been authorized by Congress. For years we have had no more efficient Secretary of the Navy, or more able and energetic chiefs of the bureaus, if we may judge from what has already been accomplished; but it depends on Congress to give the proper authority to construct a mail-clad navy, and to provide the necessary funds.
The importance of defensive armor has ever been felt. The warriors of ancient times went to the field in coats-of-mail, and both Homer and Virgil dilate upon the exquisite carving of the shield. The hauberk and corselet were used by the Crusaders, and the chain-armor of Milan was nearly or quite impervious to the sword and spear. Mexico and Peru were won in great part by coats-of-mail. They were used until gunpowder changed the whole course of war,—and the Chevalier Bayard, that knight "sans peur et sans reproche," who had borne himself bravely and almost without a scar in a hundred battles, in his last Italian campaign, as he was borne from the field, after being struck down by a cannon-ball, mourned that the days of Chivalry were ended. And Shakspeare tells us that this villanous saltpetre had prevented at least one sensitive gentleman from being a soldier.
Defensive armor is still used by tribes who are destitute of powder; and Barth and Barkie, in their African expeditions, found Moorish horsemen pressing down from the North into the interior of the Soudan, arrayed in coats-of-mail of the same description with that which figured in the Crusades.
In the naval contests of the last century armed ships were inferior in size to those of modern times, and their tough oak sides were not easily pierced by the six- and nine-pound balls then in general use, and twelve-pounders were considered of unusual dimension. During the war between France and America, a merchantman, armed with nine-pounders, actually beat off a sloop-of-war and several Spanish privateers; but now frigates, and even sloops-of-war, are armed with Dahlgren guns of eight- to eleven-inch bore, which throw balls of sixty to one hundred pounds,—also with superior rifled cannon. Whitworth and Armstrong guns are in use that throw shot or shell distances of three to five miles, which "the wooden walls" of neither England nor America are able to resist.
We have recently seen the Freeborn, the Pawnee, and the Harriet Lane, when assailing the rebel batteries on the James and the Potomac, compelled to take positions at the distance of two miles, and to keep constantly moving, and compelled consequently to throw away most of their costly ammunition in uncertain shots, at the same time that they were constantly exposed to shots which might destroy their engines and explode their boilers. There was no lack of courage on the part of their gallant officers; but, from the insufficiency of the vessels, they were obliged to use a wise discretion, and to take all reasonable precautions for the safety of their ships, so important and yet so inadequate to the service of the country. And when Fort Sumter was about to fall, and when a single shot-proof gun-boat could have defied the rebel batteries, and without the loss of a man have conveyed to the fortress stores for six months and a whole battalion of troops, that single gun-boat,—a mere gun-boat, which need not have passed within one thousand yards of any batteries on her way,—could not be commanded by the Government, and the gallant Anderson was compelled to lower to treason that flag whose fall has aroused the nation to arms.
The earliest experiments upon the power of iron plate to resist the force of cannon-balls appear to have been made in France by M. de Montgery, an officer in the French navy, as far back as 1810. He proposed to cover the sides of ships with several plates of iron, of the aggregate thickness of four inches, which he alleged would resist the force of any projectile. But Napoleon had not confidence in his navy; he had lost the battles of the Nile and Trafalgar; ever successful on the land, his ships had been swept by Nelson from the deep; and he had neither time nor disposition to investigate new plans for the restoration of the navy, or even to take up Fulton's new discovery. It was reserved for the third Napoleon to develop the original idea of a Frenchman, and thus to place France on the sea nearly or quite upon a footing with England.
Some twelve years later, General Paixhans, who gave his name to the large guns of modern times, (although their prior invention was claimed by the late Colonel Bomford,) again commended plate-armor for ships to his Government; but his advice was not then adopted.
With the improvement of cannon the importance of plate-armor became more and more apparent; and at length Mr. Stevens, under the sanction of our Government, instituted a series of experiments upon iron plates, and soon after commenced building an immense floating battery for the defence of New York, at Hoboken, which is still unfinished, but which, it is rumored, will, if Congress appropriates the means, be completed the present season.
Stevens was the first to carry out the idea of a mail-clad steamer; and it is alone due to the apathy of the late Administration, which has neglected our navy while indulging in its Southern proclivities, that our nation has not the honor of launching the first steamer in a coat-of-mail. The frame, however, of such a vessel has been long in place, the hull is nearly complete, the engines are far advanced, and the finishing stroke may soon be given.