Philosopher in his chamber studying a lodestone, Antwerp, c 1580.
© Science Museum / Science & Society Picture Library
'Lapis Polaris Magnes'. Engraving showing a man sitting at a desk reading from a book and using a compas. The interior is filled with mathematical instruments including terrestrial globes, compases, hour glases and books. A large model of a sailing ship is suspended from the ceiling by a window with a view of the sea. A dog, curled up asleep sits by his master's feet. Taken from Janander Straet, Nova Reperta, Antwerp, Belgium, printed by Phils Gallaeus.