162
had also patented a new dip developing process that con-
sisted of bronze or brass on metal. August Rosalie was
rather artistically inclined, as seen in his photographs
of architecture, and made some of the most beautiful
photographs of the 1850s, for example “The Interieur
of the cathedral of Rouen” (1858) or the large-sized
photographs of Parisian Louvre (about 1854).
Soon, however, the brothers joined efforts because
of the great competition amongst the various portrait-
studios in the French capital and because although they
were already partly paid, the portraits of the elected
representatives were still unfi nished. Unfortunately due
to the revolution of 1848 and the tumultuous internal
political disputes, many members left the Assemblée
Nationale, and the capital all together. Another reason
for forging this partnership was because of the suc-
cess of Gustave Le Gray’s work in the Exposition des
Produits de l’Industrie, Paris 1849 in which the BissonsBISSON, LOUIS-AUGUSTE AND AUGUSTE-ROSALIE
Bisson, August-Rosalie. The Ascent of
Mont Blanc.
The Metropolitan Museum of Art,
Gilman Collection, Purchase,
Alfred Stieglitz Society Gifts,
2005 (2005.100.54) Image © The
Metropolitan Museum of Art.