François Arago, 1839, 10 August (event) 1864 (published), Fig. 12 Arago annonce la découverte de Daguerre, Engraving, Google Books, LL/34344
François Arago 1839, 10 August (event) 1864 (published) Fig. 12 Arago annonce la découverte de Daguerre
Engraving Google Books Source: "Les merveilles de la science: ou Description populaire des inventions modernes" By Louis Figuier (Paris, Furne, Jouvet et Cie, Editeurs, 1864). This engraving is in the section on "La Photographie" p. 41
