Basalt/

[L,. basaltes.'] A rock of igneous origin, occurring chiefly in the ancient trap series of rocks. Basaltic rocks are composed of feldspar, augite, and magnetic iron, and other minerals, such as olivine. In color they are blue, brown, and black. They occur both as lava-flows and as sheets or dikes intruded between other strata, and are sometimes found in columns, which may be perpendicular or inclined, and of regular or irregular structure, as at the Giants’ Causeway in Ireland. the complete square wins the game. There are nine players on each side, including the pitcher, batsman, catcher and field men. the oldest arts known to man. The shoots of the willow or osier are mostly used. Ash, elm, and birch shoots are also used. Baskets are made of a great variety of shapes and sizes, and basket work is used for various other purposes, such as screens, chairs and pony carriages. Boats have been made of basket-work covered by skins, and the ancient Britons used basket shields.