5 Pages in Charles Darwin's Library associated with "mental states - horror"

The anatomy and philosophy of expression.
By: Bell, Charles.
Publication info: London :John Murray,1844.
Pages: Page 169
De la physionomie et des mouvements d'expression.
By: Gratiolet, Pierre.
Publication info: Paris :J. Hetzel,1865.
Pages: Page 26 Page 104 Page 105
Wissenschaftliches System der Mimik und Physiognomik.
By: Piderit, T.
Publication info: Detmold :Klingenberg,1867.
Pages: Page 74