Partial armored belt and partial forward and after spar-deck breastworks. The armored belt extends for three fifths of the length of the ship amidships, ending in armored athwartship bulkheads, which rise to the height of the spar-deck beams. A heavy iron deck prolongs the lower edge of the belt to the bow and stern, protecting the steering-gear aft and forming a support for the ram forward. The guns are all carried on a covered deck, giving a flush spar-deck. The breastworks on the main-deck at the bulkheads form a side protection for the forward and after guns, the corners being cut for angular ports and the side recessed for fore-and-aft fire. These ships have twin screws and an armored longitudinal bulkhead similar to the Alexandra. [Illustration: NELSON.] MONARCH. NEPTUNE. Armored belt and revolving Coles turrets on the spar-deck. The belt rises to the height of the main-deck beams, and amidships is carried up to the spar-deck beams to cover the lower part of the turrets and machinery. An armored bulkhead rises well forward, forming on the spar-deck a forecastle breastwork for the bow-guns. The spar-deck rail in wake of the turrets may be dropped to open their fire. The Neptune has no protected stern-fire. The belt of the Monarch is carried up aft to the height of the spar-deck beams, forming a breastwork for the stern-guns. (See Hercules.) The Neptune is the late Independenzia. [Illustration: MONARCH.] INFLEXIBLE. AJAX. AGAMEMNON. CONQUEROR. [Illustration: INFLEXIBLE.] Casemated, double-turreted, mastless, sea-going iron-clads. Ram bows. The armored casemate is rectangular and encloses the middle third of the vessel. The lower edge of the casemate is prolonged fore and aft in a heavy iron deck, which forward curves down below the point of the ram. Short unarmored forecastle and poop structures, carried along in line with the keel to the smoke-stacks. The turrets are placed diagonally to open the full fore-and-aft fire. Forward and abaft the casemate is a cork belt of the thickness of the armor, to give the ship floating power in case the unprotected sections are pierced. The ship is divided in two by a longitudinal bulkhead. Twin screws. DREADNOUGHT. ORION. BELLEISLE. Armored belt and breastwork, sea-going monitors. The armor is complete fore and aft, and is carried down in a curve forward below the point of the ram. Throughout the middle third a casemate rises to protect the bottom of the turrets and give them a good elevation above the water-line. Forward and abaft this casemate, and in line with it, an unarmored superstructure is carried, stopping short of the bow and stern. This forms roomy quarters and gives the ship an increased freeboard and stability. The turrets are amidships and in line with the keel. Between them is a musket-proof superstructure, expanding into a flying deck having at its forward end an armored pilot-house. Longitudinal armored bulkhead, similar to the Alexandra. [Illustration: DREADNOUGHT.]