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Contents 



CHAP. . PAGE 



PRELIMINARY 1 



I. AMCEBOID AND CILIARY MOVEMENT ..... 2 

 II. THE ELECTRICAL APPARATUS IN COMMON USE IN PHYSIO- 

 LOGICAL WORK 4 



III. SIMPLE EXPERIMENTS ILLUSTRATING THE USE OF ELECTRICAL 



APPARATUS IN PHYSIOLOGY . . ... 17 



IV. THE NERVE-MUSCLE PREPARATION 20 



V. THE RECORDING OF MUSCULAR CONTRACTIONS . 26 



VI. THE NERVELESS MUSCLE ...... 32 



VII. EFFECT OF SUCCESSIVE STIMULI UPON A MUSCLE-NERVE 



PREPARATION 36 



VIII. WORK OF MUSCLE ; EXTENSIBILITY OF MUSCLE ... 39 



IX. FATIGUE OF MUSCLE AND NERVE 42 



X. CONDUCTION IN NERVE 46 



XL CONDITIONS OF EXCITATION OF NERVE AND MUSCLE BY THE 



GALVANIC CURRENT .... ... 50 



XII. POLAR EFFECTS OF A GALVANIC CURRENT ; ELECTROTONUS . 54 



XIII. EXPERIMENTS ON THE ELECTRICAL CONDITIONS OF MUSCLE 



AND NERVE 57 



XIV. INVOLUNTARY MUSCLE ... .... 62 



XV. THE FROG-HEART .64 



XVI, PERFUSION OF HEART 69 



XVII. CARDIAC NERVES OF FROG . 72 



XVIII. STRUCTURE AND ACTION OF THE MAMMALIAN HEART . . 75 



XIX. THE CIRCULATION IN THE BLOOD-VESSELS .... 77 



XX. THE PFLSE 83 



XXI. PERFUSION OF VESSELS ; LYMPH-HEARTS . 86 



XXII. MECHANISM OF SECRETION ....... 88 



XXIII. RESPIRATION . . 90 



XXIV. NERVE- ROOTS . 94 



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