D. Johann Peter Eberhards neue Beiträge zur Mathesi applicata : worin die ersten Gründe der Mühlenbaukunst, Hydrotechnik und Bergwerkswissenschaft erklärt werden : nebst einigen Zusätzen zur Mechanik, Optik und Gnomonik
Johann Peter Eberhard's 1773 German treatise on applied mathematics, published by the Rengersche Buchhandlung, explains the basics of milling, hydraulic engineering and mining for engineers and students of the eighteenth century. The copperplate plates are dense technical diagrams of gears, wheels, shafts, pumps and mine workings, labelled with lettered figures and keys, which a designer could use for mechanical linework, schematic icons or period engineering motifs.
