Total number of carriages, 369.

Draught-horses, for each gun and howitzer, with its carriage, 8; for each spare gun-carriage, 6; for each mortar-wagon, 8; for each battery-wagon, 6; for each forge, 6; for each cart, 2; for each sling-cart, large, 2; spare horses, one-tenth. Total, about 1900 horses.

Siemens-Martin Steel. See [Ordnance, Metals for, Steel].

Siena, or Sienna. A city of Central Italy, about 30 miles southeast from Florence. In the Middle Ages, Siena became one of the powerful city republics of Italy. It embraced the Ghibelline cause, and in conjunction with the forces of Pisa, defeated the Tuscan Guelfs, in the memorable battle of Monte Aperto (1206). Through intestine quarrels it was subjugated by the emperor Charles V., and given to his son in 1555, who ceded it to Cosmo of Tuscany, 1557. It was incorporated with France, 1808-14.

Sierra Leone. A district of Western Africa, situated on the Atlantic. The British settlement of Sierra Leone was established in 1787, when 400 negroes, with 60 wives, mostly women of bad character, were removed to it from London. The settlement was attacked by the French in September, 1794, and by the natives in February, 1802.

Sight. A small piece of brass or iron fixed to a cannon or a musket, to serve as a point of direction, and to assist the eye in aiming the piece.

Sight. To give the proper elevation and direction to by means of a sight; as, to sight a rifle or cannon. To take sight, to take aim; to look for the purpose of directing a piece of artillery, or the like.

Sight, Angle of. See [Pointing].

Sight, Breech-. See [Breech-sight].

Sight, Buckhorn-. A form of rear-sight much used in sporting rifles, which takes its name from the curved form of the notch used. This form of notch is now attached to the Springfield rifle in use by U. S. troops.