DEVASTATION. THUNDERER. [Illustration: DEVASTATION.] Armored belt and breastwork, double-turreted, sea-going monitors. The armored belt from forward to the forward turret comes only to the height of the water-line. The breastwork differs from that of the Dreadnought in not coming out to the side, but the freeboard necessary is obtained by carrying around it and well forward and aft a musket-proof superstructure. A musket-proof superstructure also rises between the turrets, expanding into a flying deck with an armored pilot-house at its forward end. GLATTON. Armored belt and breastwork, single-turreted, coast-defence monitor. The armored belt rises to the upper-deck level, and is of the same thickness from stem to counter. It has an overhang beyond the hull of 2½ feet amidships. The breastwork surrounds the turret and smoke-stack and does not come out to the side. Forward and abaft a narrow superstructure carries along the line of the breastwork. Abaft the turret, which is situated well forward, a musket-proof superstructure rises, expanding into a flying deck, with an armored pilot-house at its forward extremity. [Illustration: GLATTON.] CYCLOPS. GORGON. HECATE. HYDRA. ABYSSINIA. MAGDALA. CERBERUS. [Illustration: CERBERUS.] Armored belt and breastwork, double-turreted, coast-defence monitors. The breastwork occupying somewhat more than the middle third of these vessels surrounds the turrets and smoke-stack, but does not come out to the side. Musket-proof passages or tubes and ventilators, together with an armored pilot-house, extend above a light flying deck. The Cerberus is stationed permanently at Melbourne, having had a temporary rail and upper deck built on her for her passage out. The Abyssinia and Magdala are permanently stationed at Bombay. HOTSPUR. RUPERT. Armored rams. The armor-belt completely encircles the hull and is carried down in a curve forward below the point of the ram. Each vessel is provided with a breastwork and single turret. That of the Hotspur is fixed and has four ports, the gun being worked on a turn-table. That of the Rupert is of the Coles type of revolving turret. The breastwork surrounds the foot of the turret and the smoke-stack. Both vessels have a high superstructure from abaft the turret to the stern, rising two thirds the height of the turret, and each carries a stern-gun, the side being recessed at each counter for stern-fire. The Hotspur carries an armored pilot-house on top of her turret; the Rupert has two, one on each side, abaft the turret in the dead-angle. At present the turret of the Hotspur is being changed to a revolving one like the Rupert’s. [Illustration: HOTSPUR.] PRINCE ALBERT. Four-turreted monitor. This ship has a wooden hull, having been cut down from a line-of-battle ship. Her armor-belt encircles her hull and she has no breastwork; her Coles turrets being protected about their lower parts by the armored deck. This vessel is only fit for harbor defence. SCORPION. WYVERN.