506 



PHYSIOLOGY 



Visual (contd.}, 



judgments, 418 



line, 391 



measurement, 418 



perceptions, judgments, 416 et seq. 



plane, 391 



purple, 341, 342 



sensation, latency, 356 

 qualities, 350 



touch, 412 

 Vitreous humour, 434 



bibliography, 436 



refractive index, 285 

 Voice, anaesthesia of glottis, 92 



muscular sense, 92 



Volition and movement, 100 

 Volitional movement, practice, 103 



Waking, 462 



Warm colours, 366 



Weight discrimination, 10, 109 



contrast, 103 



threshold, 110 



Wheel movements, eyes, 396 

 Whistle, Galton's, 224 

 Winking, 427 



Yellow spot, 327 



Zone, ciliary, 267 



optic, 304' 

 Zones, gustatory, 137 



