Appletons' cyclopædia of technical drawing : embracing the principles of construction as applied to practical design ...
A reference cyclopaedia of technical drawing edited by engineer William E. Worthen, published by D. Appleton in New York in 1896 for draughtsmen, machinists and architectural students. Engraved line plates show geometric constructions with lettered points and dashed arcs, hatched sections through machine parts and masonry, and numbered figures set in letterpress, offering ready-made engineering diagram vocabulary.
