An essay on electricity : explaining the theory and practice of that useful science : and the mode of applying it to medical purposes : with an essay on magnetism
George Adams, instrument maker to the king, published this treatise on electricity and magnetism in London in 1787 for practitioners, physicians, and gentleman experimenters. Copperplate plates crowd dozens of numbered figures — cylinder electrical machines, Leyden jars, insulated stands, discharge rods, medical electrodes — into grid layouts, giving designers fine-line apparatus silhouettes and a ready vocabulary of figure-numbered diagram arrangement.
