Potidæa. A town in Macedonia, on the narrow isthmus of the peninsula Pallene, was a strongly fortified place, and one of considerable importance. It was a colony of the Corinthians, and was founded before the Persian wars. It afterwards became tributary to Athens, and its revolt from the latter city in 432 B.C. was one of the immediate causes of the Peloponnesian war. It was taken by the Athenians in 429, after a siege of more than two years, its inhabitants expelled, and their place supplied by Athenian colonists. In 356 it was taken by Philip of Macedon, who destroyed the city, and sold the inhabitants into slavery. Cassander, however, built a new city on the same site, to which he gave the name of Cassandria, and which he peopled with the remains of the old population, and the inhabitants of the surrounding towns. It was taken and plundered by the Huns, but was restored by Justinian.
Potomac. A river of the United States, formed by two branches, which rise in the Alleghany Mountains, and unite 20 miles southeast of Cumberland, Md., from which point the river flows in a generally southeasterly course, 400 miles, and falls into Chesapeake Bay, where it is 6 to 8 miles broad, 75 miles from the ocean. Line-of-battle ships ascend to Washington, 120 miles from its mouth. The Potomac forms the greater part of the boundary between Virginia and Maryland. During the civil war, both Federal and Confederate armies crossed several times the fords of the Upper Potomac, and severe actions were fought upon its banks. The largest army of the Union was named after it.
Pottawatomies. A tribe of Indians of Algonkin stock, who formerly occupied a great part of Michigan, where a few still remain. They fought against the settlers in the Pontiac war, and against the Americans in the war of the Revolution; and were allies of the British in the war of 1812, soon after which they removed to Kansas, where they now reside in a partial state of civilization, only about 500 of what is known as the Prairie band being located on a reservation.
Pouch. A case of strong leather, lined with tin divisions, for the purpose of carrying a soldier’s ammunition. It is covered by a flap to preserve the cartridges from wet. The leather cases containing primers, lanyard, etc., in field and heavy artillery, and those containing a gunner’s level, vent-punch, gimlet, etc., in heavy artillery, are also called pouches.
Pounder. The term used in describing the force of a cannon employed in firing solid shot; as, a 9-pounder field-gun, a 300-pounder Armstrong, etc.
Powder. See [Gunpowder].
Powder-cart. A two-wheeled carriage covered with an angular roof of boards. To prevent the powder from getting damp, a tarred canvas is put over the roof; and on each side are lockers to hold shot, in proportion to the quantity of powder.
Powdered, or Semée. In heraldry, strewn with an indefinite number of small charges.
Powder-magazine. See [Magazine].
Powder-measure. See [Implements].