Nouveau traité élémentaire et pratique des maladies mentales. Suivi de considérations pratiques sur l'administration des asiles d'aliénés.

The first psychiatric textbook to utilize photographic illustrations of patients. This was the second edition of Dagonet's Traité élémentaire et pratique des maladies mentales (1862). The second edition included 8 Woodburytype photographs depicting 33 "types of insanity."
A proponent of physiognomic diagnosis, which associated physical and facial morphology to personal characteristics (Pichel 2019), Dagonet strategically used visuals to make his textual arguments more convincing. Dagonet hired photographer J. Valette to create “portrait-style” photographs of a number of his patients at the Sainte Anne asylum in Paris. Digital facsimile from Google Books at this link.