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 reference encyclopaedia edited by Thomas Curtis and published by Thomas Tegg in London in 1829, aimed at self-educating general readers seeking a survey of science, art and practical mechanics. Copperplate and wood-engraved plates combine clock and escapement mechanisms, geometric constructions of conic sections, dial faces and shaded plans of works and fortifications, offering line diagrams and technical labelling.








































