Keywords: Life in Motion Fig 11.png en Fig 11 ”Arrangement of apparatus for showing muscle lifting a weight b galvanic element; b in middle electric bell; p primary and s secondary coil of induction machine; a frog interrupter; m muscle See next figure Life in Motion or Muscle and Nervehttps //archive org/details/b21929786 John Gray McKendrick 1892 1926 Life in Motion book Galvanism |