vi ELECTRO-PHYSIOLOGY 



PAGE 



4. EXCITING EFFICIENCY OF ELECTRICAL CURRENTS .... 155 



5. CLOSING AND OPENING TETANUS THROUGH ELECTRICAL EXCITATION . 165 



i. Conditions of Production by Excitation of Frog 's Nerve . . . 165 

 ii. Excitation of Nrrves in Crayfish . . . . . .185 



6. POLAR EXCITATION OF OTHER NERVES AND SPECIFIC NERVE-ENDINGS . 194 



7. POLAR EXCITATION BY CURRENTS OF SHORT DURATION (INDUCTION 



CURRENTS) ... ... 207 



8. EFFECT OF REPETITION OF STIMULUS . .215 



9. UNIPOLAR EXCITATION . . ... 219 



BIBLIOGRAPHY . . . . 223 



CHAPTER X 



ELECTROMOTIVE ACTION IN NERVE . 227 



1. CURRENT OF "RESTING" NERVE ...... 227 



2. ELECTROMOTIVE CHANGES PRODUCED BY ELECTRICAL EXCITATION 



(CURRENT OF ACTION) . - . . . . . 242 



3. ELECTROMOTIVE CHANGES PRODUCED BY STIMULATION OTHER THAN 



ELECTRICAL ........ 251 



4. TIME-RELATIONS OF ACTION CURRENT AS DETERMINED BY RHEOTOME . 259 



5. ELECTROMOTIVE CHANGES (ELECTROTONUS) . 266 



i. In Medullated Nerve ... . . 266 



ii. In Non-mcdullated Nerve ...... 281 



iii. In Cooled and Etherised Medullated Nerve . . . 286 



iv. In PolariscMe Schemata ...... 298 



6. SECONDARY ELECTROMOTIVE CHANGES IN NERVE FOLLOWING THE 



PASSAGE OF A CURRENT . ... 309 



7. THEORETICAL . . 315 



The Action of Nerve upon Muscle . . . 337 



BIBLIOGRAPHY . . . 353 



CHAPTER XI 



ELECTRICAL FISHES . 357 



1. STRUCTURE AND CONSTITUTION OF ELECTRICAL ORGANS . . . 357 



2. GENERAL ACTION OF DISCHARGE FROM ELECTRICAL FISHES . . 407 



3. DISCHARGE FROM ARTIFICIAL EXCITATION OF THE ELECTRICAL NERVES 



AND CENTRAL ORGANS 423 



