Feeling, mystery of, [197];
effects of surplus in producing laughter, [201];
why it disturbs the intellect, [207].
Feeling a stimulus to muscular action, [211], [220];
shown in loudness of voice, [215];
in quality or timbre, [215];
in pitch, [216];
in intervals, [217];
in variability of pitch, [219];
relation of, to vocal sounds in ourselves, [220];
in others, [220];
causes prostration, [222];
classification of the feelings, [323].