498 



PHYSIOLOGY 



Internal pain, bibliography, 124 

 Internal sensations, 2 



bibliography, 124 



classification, 57 et seq. 



suggestion, 60 

 Intervals, musical, 247 

 Intra-ocular pressure, 433, 434 

 .Introspection, sensation, 2 

 Ions, taste, 146 

 Iris, 269 



aqueous humour, 432 



chromatic aberration, 304 



co-ordination of muscles, 321 



innervation, 316 



muscles, 315 



neuro-muscular mechanism, 315 etscq. 



vasomotor nerves, 317 

 Islands, acoustic, 236, 246 

 Isochymes, taste, 137 

 Itch, sensation, 52, 53 



Joints, nerve-endings, 95 

 Judgments, auditory, 263 

 visual, 418 



relief, 409, 410 



size, distance, 418 



Rations, taste, 146 

 Keratoscope, 305 

 Kinaesthesia, tactile, 106 



visual, 401 



bibliography, 124 

 Knowledge, relativity, Miiller's law. 8 



Labyrinth, anatomy, 113 



bibliography, 125 



bulb, 122 



cerebellum, 122 



endolymph, 121 



lesions, 116, 122 



otoliths, 121 



postural sense, 117 

 Labyrinthine, 



acuphenes, 261 



function, mechanism, 115 



sense, 111 et seq. 

 Lacerta agilis, retina, light, 347 

 Lachrymal, 



centre, 430 



glands, 428 



lake, 429, 430 



nerves, 430 



passages, 430 



reflex, 429 



sac, 430 



valve, 431 

 Lachrymation, 428 

 Lacunte, acoustic, 236, 246 

 Lagophthalmus, 428 

 Lamina, fusca, 268 



spiralis, 193 

 Larynx, taste, 135 

 Latency, pain, 51 



Latency, pupil, 313, 318 

 taste, 136 

 vision, 356 



Law, localisation of pain, 67 

 Mendeleeff's, taste, 147 

 psycho-physical parallelism, 2 

 pupil reaction, Verwoot, 313 

 sensation, Fechner and Weber, 9, 10 

 specific nerve energy, 6 

 Talbot's, 357 



transmission of pressure, Pascal, 220 

 Laws, refraction, 278 

 Lead poisoning, tactile sense, 53 

 Leipothyrnia, consciousness, 444 

 Lens, air, 309 



crystalline, accommodation, 297, 300 

 curvature, 287 

 displacement, 295 

 fish, 309 



physostigmine, 295 

 refractive index, 285 

 thickness, 288 

 ultra-violet rays; 354 

 Lenses, achromatic, 303 

 cylindrical, 308 

 refraction, 283 

 Leuciscus, hearing, 116 



retina, light, 345 

 Leucomaines, sleep, 468 

 Ligaments, eye, 390 

 Light, adaptation, 361 

 refraction, 276 et seq. 

 subjective decomposition, 357 

 velocity and refraction, 279 

 visibility, wave-length, 354 

 Liminal difference, constancy, 10 



weight discrimination, 110 

 Line, focal, 304 



visual, 391 



Lines, directive, 279, 290 

 Liokja, 463 



Listening, stapedius, 208 

 Local colour, touch, 44 

 Local sign, hearing, 235 

 touch, 44 

 vision, 419 



Localisation, cutaneous, 40, 47 

 hunger, 70 

 pain, 47 



Head's law, 67 

 sensory, development, 108 

 sound, 262 

 tactile, 41 

 thirst, 71, 74 



Locomotor ataxy, sensibility, 99 

 Locus luteus, 162 

 Lumbricus, pain, 52 

 Luminosity, spectrum, 362 

 Lustre, stereoscopic, 414 



Macacus, retina, light, 347 

 Macula, acustica, 114 

 lutea, 327 



