CONTENTS xxiii 



CHAPTERS XIII. AND XIV. 



PAGE 



1. Difference of make and break induction shocks - - 807 



2. Stimulation by the voltaic current - - 810 



3. Ciliary motion - 811 



4. Direct excitability of muscle curara - - - 811 



5. Graphic record of ' twitch ' - - 811 



6. Influence of temperature on the muscle-curve - - 813 



7. Influence of load on the muscle-curve - - 813 



8. Influence of fatigue on the muscle-curve - 813 



9. Seat of exhaustion in fatigue of the muscle-nerve preparation 813 



10. Influence of veratrine on muscular contraction - 814 



11. Measurement of the latent period of muscular contraction - 815 



12. Summation of stimuli - - - 816 



13. Superposition of contractions - - 816 

 1 1. Composition of tetanus - 816 



15 Contraction of smooth muscles - - - 817 



1 6 Velocity of the nerve-impulse - - - - 818 



17. Chemistry of muscle - - - 819 



1 8. Reaction of muscle in rest, activity, and rigor - 820 



CHAPTER XV. 



1. Galvani's experiment - .... 842 



2. Contraction without metals - .... 842 



3. Secondary contraction - - 842 



4. Demarcation and action currents with capillary electrometer 842 



5. Action current of the heart - 844 



6. Electrotonus - 844 



7. Paradoxical contraction - 844 



8. Alterations in excitability and conductivity produced in nerve 



by a voltaic current - 844 



9. Formula of contraction - 845 



10. Formula of contraction for (human) nerves in situ - 846 



11. Ritter's tetanus - - 846 



CHAPTER XVI. 



1 . Section and stimulation of nerve-roots * 994 



2. Reflex action in the ' spinal ' frog - - 995 



3. Reflex time - - 995 



4. Inhibition of the reflexes - 996 



5. Spinal cord and muscular tonus - 996 



6. Spinal cord and tonus of the bloodvessels - 996 



7. Action of strychnine - ...... 996 



8. Mammalian spinal preparation - 996 



9. Decerebrate cat preparation ----- 998 

 10. Swallowing reflex 1000 



