3 Pages in Charles Darwin's Library associated with "mental states - timidity"

De la physionomie et des mouvements d'expression
By: Gratiolet, Pierre,
Publication info: Paris, J. Hetzel, 1865
Pages: Page 17
The physiology or mechanism of blushing
By: Burgess, Thomas H. (Thomas Henry),
Publication info: London, John Churchill, 1839
Pages: Page 187 Page 188