A short treatise of magneticall bodies and motions. By Marke Ridley Dr in phisicke and philosophie latly physition to the Emperour of Russia, and one of ye eight principals of elects of the Colledge of Physitions in London. Add to clipboard GB 2014 WS-01-BUS-PRS/2/01b Item 1613 Part of Westminster School's Archive and Collections Lacks all before a1 and all after p. 152 Ridley, Mark,