On the electricity evolved by the friction of water and steam against other bodies
An 1843 London paper by Michael Faraday, published by the Royal Society, on electricity produced when water and steam rub against other materials. The single picture is a technical engraving of a rounded steam or water vessel joined to a valve, a rod and a fitting, labelled Fig. 1, showing how the apparatus was built for the experiment. A designer could take its clean hairline cross-hatching and plain labelled diagram style as a reference for precise mechanical line drawing.
