VOICE imitated, 96, 195; organs of, Part. III., Chap. V.; of animals,
183; pitch and quality of, 191-194; vowel sounds of, 195; con-
sonants of, 196; whisper of, 197; whistling of, 198; falsette, 199.
Vowels, how produced, 195.
Walls, prevent the spread and loss of sound, 7; reflect sound, 8, 9,
10, 11.
Water, waves formed on it by throwing in a stone, 13; capable of
conveying sound, 26; velocity of sound in, 27; heat not devel-
oped in it by sudden compression, 29; changes the nature of sound
passing through it, 31; shadows of sound in it, 32; in contact with
vibrating surfaces, 161 h, 164, 167, 168, 169, 171 – 182.
Waves, formed on water by the force of a stone, 13; definition of
14; motion of, 15, 152; in a field of standing corn, 15; breadth
of, 16; various species of, 16, 47.
Whisper, 197.
Whistle, 198.
Wind, effect on Sound, 5.