5. The Dulle-Griete of Ghent, wrought iron, A.D. 1430; bore 25 inches; stone ball, 700 pounds.

6. The Dhool-Dhanee, bronze gun of Agra, India; bore 23.2 inches; stone balls, 520 pounds.

7. Mons Meg of Edinburgh; wrought iron, A.D. 1455; bore 20 inches; stone ball, 400 pounds.

8. Rodman Gun, American, 1863; cast iron; bore 20 inches, weight 117,000 pounds; cast-iron solid shot weighing 1080 pounds.

The most powerful cannon the world has ever seen have been made within the present decade (1870-80). They are rifles.

The 100-ton [Armstrong guns] sold to Italy to arm the “Duilio” and “Dandolo”; bore 17 inches, weight of oblong shot of chilled iron 2000 pounds, charge of [Fossano powder] 552 pounds. [Muzzle-loading].

The 80-ton [Woolwich guns] made to arm the “Inflexible”; bore 16 inches, weight of shot 1700 pounds, charge of [cubical powder] 440 pounds. [Muzzle-loading].

The 72-ton [Krupp guns]; bore 15.75 inches, weight of steel shot 1700 pounds, charge of [prismatic powder] 452 pounds. Guns all steel. [Breech-loading].

Cannonade. The act of discharging shot or shells from cannon for the purpose of destroying an army, or battering a town, ship, or fort; usually applied to an attack of some continuance.

Cannon-ball. A ball usually made of cast iron, to be thrown from cannon.