Paper, 'Experiment designed to shew whether the muscles of an animal, in their action are bigger or lesse in their totall sum of dimensions' by Dr [Jonathan] Goddard Paper describing an experiment with a case for an arm that can be immersed in water with a glass tube attached. The level of water in the tube would change with each pulse of the individual's arm as well as on contracting muscles of the arm. Includes figure showing the arm case. Subject: Physiology Read to the Royal Society on 16 December 1669. [1669]