IRON CITY, Pittsburg, Pennsylvania, from its numerous iron-works.

IRON CROWN, the crown of the ancient Lombard kings, a golden circlet studded with jewels, and so called as enclosing a ring of iron said to have been one of the nails of the cross, beaten out; Napoleon had it brought from Monza, and crowned himself with it as king of Italy.  It is now in Vienna.

IRON DUKE, Duke of Wellington, from his iron will, it is surmised.

IRON GATE, the name given to dangerous rapids in the Danube at Orsova, as it issues out of Hungary.

IRON HAND, GOETZ VON BERLICHINGEN (q. v.).

IRON MASK, MAN WITH THE, a prisoner who in the reign of Louis XIV. wore, when he was transferred from prison to prison, what seemed an iron mask to prevent any one discovering and revealing his identity, over which to this day there hangs an impenetrable veil; he is reported to have been young and of noble form, and the conclusion is that he was a man of distinction.

IRONCLADS were originally wooden vessels protected by iron plates; they were used at the siege of Gibraltar in 1782; the French had them in the Crimean War, and in 1858 built four iron-plated line-of-battle ships; in 1860 England built the Warrior, an iron steam battleship with 41/2-inch plates; since then new types have succeeded each other very quickly; the modern ironclad is built of steel and armed with steel plates sometimes 2 feet thick; the term is now loosely applied to all armoured vessels, whether battleships, or cruisers, or gunboats, and whether of iron or steel.

IRONSIDES, Cromwell’s troopers, a thousand strong, and raised by him in the Eastern counties of England, so called at first from the invincibility displayed by them at Marston Moor; were selected by Cromwell “as men,” he says, “that had the fear of God before them, and made conscience of what they did....  They were never beaten,” he adds, “and wherever they were engaged against the enemy, they beat continually.”

IRONY is a subtle figure of speech in which, while one thing is said, some indication serves to show that quite the opposite is meant; thus apparent praise becomes severe condemnation or ridicule; practical irony is evinced in ostensibly furthering some one’s hopes and wishes while really leading him to his overthrow.  Life and history are full of irony in the contrast between ambitions and their realisation.

IRONY, SOCRATIC, the name given to a practice of Socrates with pretentious people; “affecting ignorance and pretending to solicit information, he was in the habit of turning round upon the sciolist and confounding his presumption, both by the unlooked-for consequences he educed by his incessant questions and by the glaring contradictions the other was in the end landed by his admissions.”