'An Experimentall Account of the raising up of a weight hung at the bottome of an emptie Bladder' by William Croone Bladders blown up to raise a weight Read to the Royal Society on 6 November 1661 Figure Image, in ink. Size height 24 cm x width 17 cm. Artist Mr Croone illustrating the account of the raising up of a weight hung at the bottom of an empty bladder nd