Geometrical and graphical essays, containing a general description of the mathematical instruments used in geometry, civil and military surveying, levelling, and perspective
A practical manual on mathematical instruments for geometry, surveying, levelling, and perspective, written by London instrument maker George Adams and issued in a 1807 London edition for surveyors, engineers, and students. Woodcut diagrams show lettered polygons with dashed offset lines and coordinate baselines, alongside engraved plates of brass instruments on tripod stands, useful for line work, lettered keys, and instrument silhouettes.
