IRON-CLAD SHIPS AND HEAVY ORDNANCE.

The new system of naval warfare which characterizes the age was proposed by John Stevens of Hoboken during the War of 1812, recommended by Paixhans in 1821, made the subject of official and private experiment here and in Europe during the last ten years especially, subjected to practical test at Kinburn in 1855, recognized then by France and England in the commencement of iron-clad fleets, first practised by the United States Government in the capture of Fort Henry, and at last established and inaugurated not only in fact, but in the principle and direction of progress, by the memorable action of the ninth of March, 1862, in the destruction of the wooden sailing-frigates Cumberland and Congress by the steam-ram Merrimack, and the final discomfiture of that powerful and heavily armed victor by the turreted, iron, two-gun Monitor.

The consideration of iron-clad vessels involves that of armor, ordnance, projectiles, and naval architecture.