LIST OF WOODCUTS. 



XV 



Go. Magnetic Induction 



66. Magnetic Induction 



67. Nerve-Terminations in the Miiscles of a Guinea-Pig 



68. GangHon-Cells from the Human Brain 



69. Graphical Representation of Muscle-Extension 



70. Representations of Positive and Negative Values 



71. Action of Oblique Muscle-Fibres .... 



72. The Sciatic Nerve and Calf-Muscle of a Frog 



73. Duration of Inductive Currents .... 



74. Helmholtz's Arrangement with a Sliding Inductive Appara 



tus 



75 J , B, C. Secondary Pulsation from the Nerves 



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