[ Chimpanzee Disappointed and Sulky. Fig. 18 ]

[ Screaming Infants. Plate I. ]

[ Obliquity of the Eyebrows. Plate II ]

[ Moderate Laughter and Smiling. Plate III ]

[ Ill-temper. Plate IV ]

[ Anger and Indignation. Plate VI ]

[ Scorn and Disdain. Plate V ]

[ Gestures of the Body. Plate VII ]

[ Photograph of an Insane Woman. Fig. 19 ]

[ Terror. Fig. 20 ]