EMPTY BOTTLE. _See_ MARINE OFFICER. ENCAMPMENT. _See_ CAMP. ENCEINTE. [Fr.] A slightly bastioned wall or rampart line of defence, which sometimes surrounds the body of a place; when only flanked by turrets it is called a Roman wall. ENCIRCLING REEFS. A name given to a form of coral reef, the architecture of myriads of zoophytes in tropical seas. ENCOUNTER. The hostile meeting of two ships or squadrons; also, a conflict between troops. ENDANGER, TO. To expose to peril. ENDECAGON. In geometry, a plane figure of eleven sides and angles. ENDELONG. The old English word for lengthways. END FOR END. Reversing cordage, casks, logs, spars, &c.--To shift a rope _end for end_, as in a tackle, the fall is made the standing part, and the standing part becomes the fall; or when a rope runs out all a block, and is unreeved; or in coming to an anchor, if the stoppers are not well put on, and the cable runs all out end for end. (_See_ AN-END.) END OF A TRENCH. The place where the trenches are opened. END-ON. Said particularly of a ship when only her bows and head-sails are to be seen, but generally used in opposition to _broadside-on_. ENEMY. The power or people against whom war is waged. ENFIELD RIFLE. The name of the present regulation musket for infantry, as made at the government works at Enfield, on an improvement of the Minié principle; whether the breach-loading rifle, which it is intended to substitute for this arm, will acquire the same title, remains to be determined. ENFILADE FIRE. Is that which sweeps a line of works or men from one end to the other; it is on land nearly the equivalent to "raking fire" at sea. ENGAGEMENT. In a naval sense, implies a battle at sea, or an action of hostility between single ships, squadrons, or fleets of men-of-war. Also, a conflict between two contending armies. ENGINE, MARINE. (_See_ MARINE ENGINES.) Engine was of old a military machine for warfare. ENGINE-BEARERS. Sleepers, or pieces of timber placed between the keelson, in a steamer, and the boilers of the steam-engine, to form a proper seat for the boilers and machinery. ENGINEER. A duly qualified officer appointed to plan and direct the attack or defence of a fortification, as well as the construction of fortified works. Engineers are also persons in charge of the machinery of steam-vessels. In government steamers they are in three classes, under warrant from the admiralty. ENGINE-ROOM TELEGRAPH. A dial-contrivance by which the officer on deck can communicate with the engineer below. ENGLAND EXPECTS EVERY MAN WILL DO HIS DUTY. This is introduced into a naval vocabulary, not as wanting explanation, but that in recording the most remarkable signal ever made to a fleet, we may remind the tyro, that these words of Nelson are admirably adapted for all the varying changes of sea-life, whether in times of war or peace.