1334 



INDEX OF SUBJECTS. 



Vestibule, 

 Viscera, nerves of 



PAGE 



1164, 1201, 1204, 1205 

 197, 200, 201, 203, 617, 

 642, 659, 686, 688 

 ,, referred pain from, 689, 690, 981, 



982, 983, 994 



reflexes from, 816, 827, 848, 849 



sensitivity of, 688,849,970,971, 



993, 994, 996 



,, shock from, .... 848 



Viscometer, ...... 65 



Viscosity of blood, . . .65, 66, 97 

 ,, fluids, . . .63, 65, 98 



Vision, 1026. See also Sensation, 

 visual. 

 ,, binocular, .... 1122 



,, ,, double, . . . 1125 



single, 1125, 1126, 1127 

 theory of, .1137,1138 



,, central, . 755, 757, 759, 760, 761 

 See also Sensation, visual, 

 foveal. 

 , , centre for. See Cerebral cortex. 

 ,, colour sense in. See Sensation, 



visual. 

 ,, double, . . 1032, 1033, 1125 



,, influence of mesencephalon on, . 913 

 ,, ,, thalamus on, 917, 918 



,, organs of. See Eye, Retina. 

 , , sense of light in. See Sensation, 



visual. 

 ,, space perception in. See Per- 

 ception. 

 Visirlinie, . . . . . .1031 



Visual angle, . . 1055,1056,1100 



,, area. See Cerebral cortex. 

 ,, purple. See Retina. 

 ,, sensations. See Sensations. 

 ,, substances. See Retina. 

 ,, yellow. See Retina. 

 Vitreous humour. See Eye. 

 A r ocal cords, . . . ' . . . 1206 

 ,, abduction of, . 1209,1210 



,, ,, action of laryngeal muscles 



on, 1209, 1210, 1211, 1212, 



1213 

 ,, ,, adduction of, . . . 1209 



,, ,, alterations in length of, in 



d liferent registers, 1214 

 ,, ,, ,, thickness in different 



registers, . .1214 

 ,, ,, centre for movements of, . 742 

 ,, ,, during respiration, . . 280 

 ,, ,, influence of inferior laryn- 

 geal nerve on, . . 1209 

 ,, ,, relaxation of, . . . 1210 

 ,, tightening of, 1209,1210,1212 

 ,, vibrations of, 1206,1207,1208 

 ,, ,, ,. in chest register, 1211, 



1213, 1214 

 ;. ,, ,, ,, head register, 1212, 



1214 

 .> ,, ,, ,. middle register, 1212, 



1213 

 ,, influence of strength 



of blast on, . 1213 



„ in voice production, 1206,1207 



,, whispering, . . . 1236 



., registers. See Voice. 



.. sounds. See Voice. 



Voice, 1206 



1215, 1218 



1207, 1208 



. 1210 



1210, 1213, 1214 



1212, 1214 



1211, 1213 



. 1210 



. 1211 



. 1213 



PAGE 



Voice, baritone, ..... 1208 



,, bass, 1208 



,, breaking of, .... 1207 

 ,, contralto, . . . 1208, 1210 



,, in eunuchs, .... 1207 



,, falsetto, . . . 1213, 1214 



,, influence of age on, . . . 1207 

 ,, ,, air cavities on, . . 1235 



,, sex on, . 1207, 1210 



,, loudness of, ... . 1207 



,, mechanism of production of, 1206, 1209 

 ,, mezzo-soprano, .... 1208 

 ,, organs of. See Larynx, Vocal 



cords. 

 ,, pitch of, 1207, 1209, 1210, 1212, 1213, 



1214, 1220 

 ,, quality of, . 

 ,, range of, . 

 ,, registers, 



chest, . 



head, . 



,, ,, middle, 



,, ,, small, . 



,, ., thick, . 



thin, . 



,, relation to in tra-tracheal pressure, 1207 

 ,, singing, ..... 1206 

 ,, soprano, . . . . .1208 



,, tenor, 1208 



,, tones of, 1215. See also Toms. 

 ,, ,, compound, 1215, 1217, 1218, 



1220 

 ,, ,, consonantal,. .1216,1233 



,, ,, influence of air passages 



on, . . . 1215, 1216 



vowel, . . . 1215, 1216 



,, ,, ,, analysis of, . . 1221 



,, ,, ,, flame curves of, 1219, 



1220 



,, pitch of, 1215, 1216, 



1217, 1220, 1225 



., ,, ,, phonograms of, 1224, 



1228 



,, quality of, 1216, 1217, 



1218, 1225, 1226, 1230 



,, ,, ,, theories of, 1216, 1218, 



1225, 1226, 1233 

 ,, ,, ,, wave-forms of, . 1120, 



1228 

 . 1236 

 . 697 



,, effect of cortical lesions on, . 697, 

 698, 699, 701, 703, 704, 722, 723 

 See also Volitional move- 

 ments. 

 Volitional contraction of muscle, . 707 



., curve of, 707, 

 709 

 ,, ,, ,, effect of fatigue 



on, . " 708 

 ,, ,, ,, ,, resistance 



on, . 708 

 ,, ,, rhythm of, 708 



movements, centre for. See 

 Cerebral cortex. 

 , , effect of lesions of 



cerebellum 

 on, 897, 898, 902 

 ,, section of 

 pyramids on, . 77S 



,, whispered, 

 Volition, 



