Perception of the ludicrous, movement of thought in, [11], [13]; as perception of relations, [13], [107], [192], [300], [302], [316]–318; necessity of distinct imagery to, [14], [131]; as immediate, [15]; as antecedent of laughter, [42], [50]; as emotional, [43], [125]; effect of subjective conditions on, [84], [88]; as intellectual, [125]; connection with primitive laughter, [116], [140], [142], [144], [153].
Philosophic humour, characteristics of, [390], [400]–405, [407]–410; utility of, [403]–405; anti-social tendency of, [406].
Philosophy, theoretic treatment of laughter by, [4]–6, [19], [396]; philosophic speculation, as laughable, [5], [400], [401]; connection of humour with, [390], [392]–410; point of view of, [393], [394], [396], [397]; ideal standard of, [394], [395]; change in aspect of reality produced by, [394], [395], [397], [398]; seriousness of, [395]; obstacles to union of humour with, [396]–399; idealism and laughter, [396]; optimism and laughter, [398]; pessimism and laughter, [398]; scepticism and laughter, [399].
Physiological aspects of laughter. See Laughter.
Pity, as inhibitory of laughter, [90], [98].
Plato, [308], [342], [396], [408].
Plautus, [266], [268], [282], [348], [352], [357], [360], [371].
Play, tickling and, [63], [179], [182]–184; laughter as concomitant of mood of, [76]–78, [198]–207; teasing as form of, [77], [201], [229]; connection with wit, [112], [355]; relation of laughter and, [145]–153, [194]; utility of, [148], [181], [182]; of animals, [158]; play-challenge, [184], [256], [344]; rompish, [198], [199]; as make-believe, [201], [214]; attacks as form of, [201]; lawlessness of, [216]; connection with comedy, [348], [349], [353], [373], [375], [377].
Playfulness, expression of. See Laughter and Mirthfulness.
Pleasure, as antecedent of laughter, [43], [71], [145]; interaction of laughter and, [44] ff.; sudden accession of, as cause of laughter, [72], [74] ff., [141], [145], [184].