INDEX 603 



Visual seasorium. 426 

 Vital actions, 4, 26 



foods derived from the vegetable world, 285 

 ultimate analysis of, 225 

 Vitreous (ritriim. glass) humour, 399 

 Vocal chords, 129. 329 et seg. 



voice due to the presence of, 329 

 Voice, 334 



production of, 329 

 quality of, 335 

 range of, 335 

 VoUtions, 342 



absent, where brain is absent, 485 

 Voluntary muscular contraction, brain the source of, 21 

 Vowel sounds, how formed, 336 



Walking, mechanism of, 328, 487 



Wallerian method, 475' 



Walls of vessels, differing structure of, 32 



bony, of thorax, 139 

 Wandering cells, 556, 557 

 Warmth, sense of, 352 

 Wast«, in contraction of muscle, 149 

 made good by food, 224 

 nitrogenous, 146 

 in respiration, 151, 269 

 as result of work, 6, 7, 22 

 Wast€ matter in blood, excretion of. 171 

 Waste products of work ui tissues, not all useless, 171 

 Wat«r, absorption of, by the large intestine, 265 

 in food, 225, 226, 272, 563 

 excretion of, 6, 24, 171, 199, 272, 562 

 bv kidnevs, 177, 183, 565 

 by lungs. 24, 135. 564 

 by skin, 1 98, 565 

 proportion of, in bile, 214 

 in blood, 106 

 • Water-camera described, 406 



eye-ball considered as, 404 

 " Watering " of the mouth, 242 



Weight, proportional, of component parts of the body. 268, 561 

 White commissure of spinal cord, 4.58 



White corpuscles of the blood, 94-96, 100, see Colourless corpuscles 

 amoeboid movements, 102, 222 

 changing form of, 100, 101, 286, 557 

 possibly produced in spleen, 223 

 relative number of, 105 

 size of, 566 

 of spleen, 223 

 typical nucleated cells, 536 

 corpuscles, cell-body of, 102 

 fibrous tissue, 558 



matter of brain and meduUa oblongata, 510 

 of Schwann, 461 



of spinal cord, 456-458, 465, 489 

 Will, seat of, 524 

 Winking, a cerebral reflex action, 526 



