S

Sayce, 6
Semon, Sir Felix, 32, 37
Singing, 95, 98 seq. 
  Chief Attributes, 104 seq. 
  Hearing and, 91
Sound-pipe, 33
Sounds, articulate, 50 seq., 60 seq. 
Sounds, musical, three qualities, 11 seq.
Speech:—­
  Cerebral Mechanism of song and, 60 seq.
  Defects, 57 seq., 73
  Hearing and, 78, 82 seq. 
  Localisation centres in the brain, 72 seq., fig. 17
  Loss of, caused by deafness, 84 seq. 
  Right-handedness, 69 seq., 80
  Theories on the origin of, 1 seq.
  Three stages, 4
Spencer, Herbert, 76
Stricker, 77, 78, 80, 82, 90

T

Thorax, 18 seq., fig. 3
Throat, 43
Timbre, 13
Tuning-forks, 12, 13, 37
Tylor, 6

V

Ventricle, 33
Vocal cords, 29 seq., 35, 36, 37, 43, 93, figs. 10, 11
Vocal instrument, three parts 15 seq., 62 et passim
  Bellows, 18 seq., fig. 1
  Reed, 28 seq., See also Larynx
  Resonator, 41 seq. 
Vocal Muscle, 31
Vocalisation. See Singing
Voice, compass of, 34, 37
Voice, psychic mechanism, 94 seq.

W

Wernicke’s sensory aphasia, 84
Word-memory, 78
Words, defined, 82