Note 44 — Chapter III · THE FEELING-TONE OF SENSATION
Reading edition
Gratiolet, De la physionomie, pp. 47, 53; Darwin, The Expression of the Emotions, pp. 80, 207; Bain, The Emotions and the Will, pp. 11, 12; Bouillier, Du plaisir et de la douleur, pp. 50, 51; Mantegazza, Physiognomy and Expression, pp. 114, 115.