Editorial note — Page 81 CHAPTER V
Reading edition
[Footnote 2: "In man infectious laughter or yawning, walking in step, imitating the movements of a ropewalker, while watching him, feeling a shock in one's legs when one sees a man falling, and a hundred other occurrences of this kind are cases of physiological sympathy." Ribot: Psychology of the Emotions, p. 232.