Ribot, Th., [171] note, [193] note.

Richet, Charles, [52] note, [53] note, [60].

Richter, J. P., [8] note, [390], [400].

Ridiculous, the, distinguished from the ludicrous, [138].

Robinson, Louis, [51], [53], [55], [57], [58], [61], [63], [162], [177], [178], [179]–182.

Romanes, G. J., [161].

Rostand, Edmond, [10], [387].

Roth, H. Ling, [224], [227], [228], [230], [232] note, [236], [240], [241], [242], [246], [247], [249], [251] note, [252] note.

Rousseau, J. J., [373], [425].

Sadness, as disposing to laughter, [70], [314]; in humour, [305], [309], [387].