TABLE OF CONTENTS. 9 



PAGE 



Chapter XI. — The Functions of the Cerebellum, the Pons, and 



THE Medulla 230 



Anatomical Structure and Relations of the Cerebellum, 230. — General State- 

 ment of Theories Regarding the Cerebellum, 234. — Experiments upon Ablation 

 of the Cerebellum, 235. — Interpretation of the Experimental and Clinical Re- 

 sults, 237. — Conclusions as to the General Functions of the Cerebellum, 238. — 

 The Physical Functions of the Cerebellum, 240. — Localization of Function in 

 the Cerebellum, 240. — The Functions of the Medulla Oblongata, 241. — The 

 Nuclei of Origin and the Fimctions of the Cranial Nerves, 242. 



Chapter XII. — The Sympathetic or Autonomic Nervous System.. 247 



General Statements, 247. — Autonomic Nervous System, 248.; — The Use of the 

 Nicotin Method, 249. — General Course of the Autonomic Fibers Arising from 

 the Cord, 250.— -General Course of the Fibers Arising from the Brain, 251. — 

 General Course of the Fibers Arising from the Sacral Cord, 252. — Normal Mode 

 of Stimulation of Autonomic Nerve Fibers, 253. 



Chapter XIII. — The Physiology of Sleep 254 



General Statements, 254. — Physiological Relations during Sleep, 254. — The 

 Intensity of Sleep, 255. — Changes in the Circulation during Sleep, 257. — Effect 

 of Sensory Stimulation, 260. — Theories of Sleep, 261. — Hypnotic Sleep, 265. 



SECTION m. 



THE SPECIAL SENSES. 



Chapter XIV. — Classification of the Senses and General State- 

 ments 267 



Classification of the Senses, 267. — The Doctrine of Specific Nerve Energies, 

 269. — The Weber-Fechner Psychophysical Law, 271. 



Chapter XV. — Cutaneous and Internal Sensations 274 



General Classification, 274. — Protopathic, Epicritic. and Deep Sensibility, 274. — 

 The Punctiform Distribution of the Cutaneous Senses, 276. — Specific Nerve Ener- 

 gies of the Cutaneous Nerves, 277. — The Temperature Senses, 278. — The Sense of 

 Pressure, 279. — The Threshold Stimulus and the Localizing Power, 280. — The 

 Pain Sense, 282. — Localization or Projection of Pain Sensations, 283. — Reflected 

 or Misreferred Pains, 283. — Muscular or Deep Sensibility, 284. — The Quality of the 

 Muscular Sensibility, 285. — Sensations of Hunger and Thirst, 286. — The Sense 

 of Thirst, 286. 



Chapter XVI. — Sensations of Taste and Smell 290 



The Nerves of Taste, 290. — The End-organ of the Taste Fibers, 292.— Classi- 

 fication of Taste Sensations, 292. — Distribution and Specific Energy of the Fun- 

 damental Taste Sensations, 293. — Method of Rapid Stimulation, 294. — The 

 Threshold Stimulus for Taste, 295. — The Olfactory Organ, 295. — The Mech- 

 anism of Smelling, 296.— Nature of the Olfactory Stimulus, 297. — The Qualities 

 of the Olfactory Sensations, 297. — Fatigue of the Olfactory Apparatus, 299. — 

 Delicacy of the" Olfactory Sense, 299. — Conflict of Olfactory Sensations, 301. — 

 Olfactorj' Associations, 301. 



Chapter XVII. — The Eye as an Optical Instrument. Dioptrics 



OF THE Eye 302 



Formation of an Image by a Biconvex Lens, 302. — Formation of an Image in 

 the Eye, 305. — The Inversion of the Image on the Retina, 307. — The Size of the 

 Retinal Image, 308. — Accommodation of the Eye, 309. — Limit of the Power 

 of Accommodation and Near Point of Distinct Vision, 311. — Far Point of Dis- 

 tinct Vision, 312. — The Refractive Power of the Surfaces in the Eye, 313.— 

 Optical Defects of the Normal Eye, 315. — Spherical Aberration, 315. — Abnor- 

 maUties in the Refraction of the Eye, Ametropia, 315. — Myopia, 316. — Hyper- 

 metropia, 317. — Presbyopia, 317. — Astigmatism, 318. — Innervation and Control 

 of the Ciliarv Muscle and the Muscles of the Iris, 320 — The Accommodation 

 Reflex and the Light Reflex. 322. — Action of Drugs upon the Iris, 324. — The Antag- 

 onism of the Sphincter and Dilator Muscles of the Iris, 325. — Intra-ocular Pressure, 

 326. — The Ophthalmoscope, 327. — Retinoscope, 329.— Ophthalmometer, 330. 



Chapter XVIII. — The Properties of the Retina. Visual Stimuli 



and Visual Sens.\tions 332 



The Portion of the Retina Stimulated by Light, 332. — The Action Current Caused 

 by Stimulation of the Retina, 333. — The Visual Purple, Rhodopsin, 334. — Extent 

 of the Visual Field, Perimetry, 336. — Central and Peripheral Fields of Vision, 

 338. — Visual Acuity, 339. — Relation Between Stimulus and Sensation, Thresh- 

 old Stimulus, 342.— The Light Adapted and the Dark Adapted Eye, 343. — 

 Luminosity or Brightness, 344. — Qualities of Visual Sensations, 345. — The Achro- 



