Browse Items (3 total)

An optical instrument used to measure angles in surveying, meteorology, and navigation. The earliest theodolite consisted of a small mounted telescope that rotated horizontally and vertically. Washington and Lee taught surveying in the mid-19th…

An instrument with a movable pointer used for mechanical measurements of the area of an (irregular) plane figure.

A mathematical instrument for laying down and measuring angles on paper, used in drawing or plotting.