Louis Jacques Mandé Daguerre (17891851).
Historique et description des procédés du daguerréotype et du diorama.
Paris: Alphonse Giroux et Cie, 1839
Rare Books Division, The New York Public Library
John Shaw Billings Memorial Collection
The process that
became known as the daguerreotype was first announced early in 1839 to
the Chambre des Députés by François Dominique Arago,
an astronomer, physicist, chemist, and member of the Chambre. Louis Daguerre
and Nicéphore Niépce had been working to perfect Niépce's
invention, and had tried without success to market the process. Arago
was instrumental in arranging that the French government acquire the invention
and give it to the world, in exchange for granting pensions to Daguerre
and to Niépce's son Isidore. During the summer, Arago gave a more
detailed presentation to the Chambre, but it was not until Daguerre published
this pamphlet that a step-by-step description became available.