A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams
A general-knowledge encyclopaedia in many volumes, edited by Thomas Curtis and published by Thomas Tegg in London in 1829 for self-educating readers and tradesmen. The plates are engraved line diagrams: lettered circles, chords and tangents, radiating pendulum arcs, dotted construction lines and small apparatus set on workbenches, useful as geometric ornament, scientific line stock and diagram lettering.
