Keywords: Life in Motion Fig 09.png en Fig 9 ”Arrangement of apparatus for irritating the muscle g directly or the nerve connected with it at f a galvanic element; b key; c primary coil of induction machine; d secondary coil; e commutator by which current can be sent either to nerve or to muscle; f electrodes as in Fig 8 for the nerve; g muscle; h small hammer; i weight Life in Motion or Muscle and Nervehttps //archive org/details/b21929786 John Gray McKendrick 1892 1926 Life in Motion book Galvanism |