Beschreibung einer auf eine neue sehr bequeme Art eingerichteten Elektrisir-Maschine, nebst einer neuen Erfindung, die elektrische Flaschen und Batterien betreffend
A German treatise from 1784 by Gottlieb Christian Bohnenberger, published by Johann Benedikt Mezler, describing a newly arranged electrostatic friction machine and an invention for electrical bottles and batteries. Its copperplate plates show laboratory apparatus drawn in fine hatched line, with cylinders, glass jars, stands and brass fittings set out in precise technical views for an eighteenth-century scientific readership. A designer might take the clean engraved hatching and the tidy diagrammatic layouts of labelled parts as a model for instructional technical drawing.
