On the source of power in the voltaic pile
A scientific paper by Michael Faraday, published in London by the Royal Society in 1840, written for natural philosophers studying electricity and the voltaic pile. The first picture is a yellow-tinted woodcut of Atlas holding a celestial armillary sphere, and the second is a line diagram of a two-cell voltaic circuit with iron and platinum plates, labelled with letters and a galvanometer, showing how engraved apparatus diagrams are laid out with clean labels and minimal shading.
