26 Pages in Charles Darwin's Library associated with "mental states - laughter"

The anatomy and philosophy of expression
By: Bell, Charles, Sir,
Publication info: London, John Murray, 1844
Pages: Page 105 Page 106 Page 140 Page 147 Page 149 Page 152 Page 153 Page 198
De la physionomie et de la parole
By: Lemoine, Albert.
Publication info: Paris, Germer Baillière, 1865
Pages: Page 57 Page 58 Page 107 Page 191
De la physionomie et des mouvements d'expression
By: Gratiolet, Pierre,
Publication info: Paris, J. Hetzel, 1865
Pages: Page 47 Page 115 Page 336
Mécanisme de la physionomie humaine, ou analyse électro-physiologique de l'expression des passions
By: Duchenne, G.-B. (Guillaume-Benjamin),
Publication info: Paris, Jules Renouard, 1862
Pages: Page 43 Page 63 Page 89
Naturgeschichte der Saeugethiere von Paraguay
By: Rengger, Johann Rudolph.
Publication info: Basel, Schweighauser, 1830
Pages: Page 46
Wissenschaftliches System der Mimik und Physiognomik
By: Piderit, T.
Publication info: Detmold, Klingenberg, 1867
Pages: Page 96 Page 97 Page 98 Page 99 Page 101 Page 102 Page 103