Mckeesport
a city in Allegheny co., Pa., at the confluence of the Monongahela and Youghiogheny rivers, and on the Pittsburgh and Lake Erie, the Baltimore and Ohio and the Pennsylvania railroads; 15 miles S. of Pittsburgh. It is in the center of the great bituminous coal and natural gas region of the State; a be used for greater distances. Machine contains business college, public guns are used to lay a barrage in front library, hospital, electric light and of an advancing infantry, co-operating street railroad plants, daily and weekly with or taking the place of heavier artil- papers, National banks, and about 30 lery. All airplanes used for military churches; and has tubing and wrought purposes are equipped with machine iron pipe works and is the seat of a great guns, and when mounted upon a special iron and steel industry. Several of the tripod and provided with tracer bullets largest steel plants in the world are they are used as anti-aircraft guns. located here. The city has the commis- Tanks and armored cars carry machine guns, and usually the first boat of a naval landing party in hostile territory is equipped with them.