CONTENTS OF THE FIRST VOLUME. 



Commissures of the cerebrum, trans- 

 verse and longitudinal, 284 



Septum lucidum and fifth ventricle, 287 



Pituitary body, 289 



Third and lateral ventricles, 290 



Lining membrane of the ventricles, 

 290 



General mew of the Course of Nervous 

 Power in the Brain, 291 



Circulation in the Brain, arteries, 292 



Consequence of obstruction, 294 



Conservative provisions, 295 



Capillaries, 295 



Veins, 296 



Brain subject to atmospheric pressure, 



296 



Brain compressible, 297 

 Practical Inferences, 298 



CHAPTER XI. 



INNERVATION, 



Of the CEREBRO-SPINAL NERVES in ge- 

 neral, 300 



Spinal Nerves, their double root, 300 



Mode of connexion with the cord, 301 



Mr. Grainger' s researches, 302 



Encephalic Nerves, 302 



How to determine the Function of a 

 Nerve ? 303 



Anatomy experiment, 304 



Clinical observation, 305 



Functions of the Roots of Spinal Nerves 

 306 



Discovery of Sir C. Bell, 306 



Functions of the SPINAL CORD, 307 



Mental and Physical nervous actions 

 of the cord, 307 



Spread of Irritation in the cord, 313 



Tetanus, epilepsy, 313 



Effects of strychnine, etc., 314 



Polarity of cord attending peripheral 

 excitement, 315 



Effects of cold, 315 



Functions of the columns of the cord, 

 316 



Mechanism of the Action of the Cord, 321 



(a) Dr. Hall's hypothesis of exeito- 

 motory nerves, and a true spinal 

 cord, 323 



Emotional fibres of Dr. Carpenter, 325 

 Mr. Newport's researches on the ner_ 

 vous system of myriapoda, 326 



(b) The cord considered as a continua- 

 tion of the spinal nerves to the brain, 

 328 



(c) Hypothesis advocated by the au- 

 thors. 328-339 



CONTINUED. 



Antagonism of Voluntary and Reflex 

 Actions, 332 



Many actions need a double stimulus, 

 333 



Peripheral Disposition of Nerves for 

 Reflex Actions, 335 



Irritation Propagated in the Centres by 

 the Gray Matter, 336 



Action of the sphincter ani, 337 



Physical nervous actions of the cord in 

 locomotion and the attitudes, 339 ; 

 in regard to the generative organs, 

 340 ; in regard to nutrition, 340 



In what sense the cord aids in main- 

 taining muscular tone. Dr. John 

 Reid's observations, 340 



The Cord not the Source of Muscular 

 Irritability, 341 



Functions of the MEDULLA OBLONGATA, 

 341 ; shares in voluntary motion, 

 343 ; in sensation, 344 ; in respira- 

 tion and deglutition, 345 ; in emotion, 

 346 ; is affected in hysteria, chorea, 

 hydrophobia, 346 



Functions of the CORPORA STRIATA, 347 ; 

 their action on motor nerves indirect, 

 348 



Functions of the OPTIC THALAMI, 349 



They are the principal foci of sensi- 

 bility, 349 



The corpora striata and thalami not 

 connected respectively with the 

 lower and upper extremities, 351 



Functions of the QUAD RIG EMINAL BO- 

 DIES, 352 



Ganglia of the Special Senses, 354 



