Ellisburgh. A village of Jefferson Co., N. Y. In 1814 an engagement took place here between the Americans and British, in which the latter were defeated.

Elmina. A fortified town and seaport of West Africa, founded by the Portuguese in 1481; was the first European settlement planted on the coast of Guinea. It was taken by the Dutch in 1637, and was ceded by them to Portugal. It was burned by the British troops in 1873.

Elsass (Fr. Alsace). One of the old German provinces, having the Rhine on the east and the Vosges Mountains on the west. It was ceded to France in 1648; but after the Franco-German war was annexed by Prussia, under treaty of May 10, 1871.

Elswick Compressor. An arrangement for compressing friction plates used in the English navy to take up the recoil of gun-carriages upon their slides. The 7 friction plates arranged longitudinally under the carriage and attached to its lower part, have alternating between them 6 long flat bars attached at their ends to the slide by bolts passing through them, but allowing them a side motion. The plates and bars are tightly clamped by short rocking levers, the lower ends of which act on the outside plates. The levers are worked by collars on a threaded shaft, which catch their upper ends. The shaft is called the compressor shaft, and has a handle or crank on the outside of each cheek or bracket,—one is called the adjusting lever, the other the compressor lever. The first is used to give an initial compression to suit the charge, the other is operated by the recoil being forced down by a tripper on the slide. Two forms of the compressor are used,—one for the single plate, the other for the double-plate carriage. In the double-plate carriage the adjusting lever can be set to any degree of compression without causing any motion in the compressor shaft or lever.

Elswick Gun. [Armstrong gun] (which see).

Elvas. A strong frontier town of Portugal, in the province of Alemtejo, situated on a rocky hill, 10 miles northwest from Badajos. It is one of the most important strongholds in Europe. The arsenal and bomb-proof barracks are capable of containing 6000 or 7000 men. In 1808 it was taken and held for five months by the French.

Emaum Ghaur. In Scinde, was a strong fortress in the Thur or Great Sandy Desert, separating that province from the rajpoot state of Jessulmere. It was captured by Sir Charles Napier in January, 1843.

Embark. To put or cause to go on board a vessel or boat; as, to embark troops. To go on board of a ship, boat, or vessel; as, the troops embarked for Egypt.

Embarkation. The act of putting or going on board of a vessel.

Embaterion. A war-song of the Spartans, accompanied by flutes, which they sung marching in time, and rushing on the enemy. The origin of the embaterion is lost in antiquity.