Geometry. Pertaining to that branch of mathematics which investigates the relations, properties and measurements of solids, surfaces, lines and angles.

Girder. A main beam; a straight horizontal beam to span an opening or carry a weight, such as the ends of floor beams.

Glossary. A collection or explanation of words and passages of the works of an author; a partial dictionary.

Graduated. Cut up into steps; divided into equal parts.

Guide stock. A member which is the main portion of the tool, and from which all measurements are taken.

Hammer beam. A member in a truss roof structure, at the base of the roof proper, which consists of an inwardly projecting part, on which the roof rests, and from which it is braced.

Hammer-pole. The peon, or round end of a hammer which is used for driving nails.

Hemispherical. Pertaining to a half globe or sphere.

Horizontal. On the level; at right angles to a line which points to the center of the earth.

Incorporated. United in one body.