CHAPTER XII
Franz Uchatius. “Apparat zur Darstellung beweglicher Bilder an der Wand” (Apparatus for the Presentation of Motion Pictures upon a Wall). Sitzungsberichte. K. Akademie der Wissenschaften. Vienna, 1853.
Karl Spacil. “Franz Freiherr von Uchatius,” Schweizerische Zeitschrift für Artillerie und Genie. Vol. XLI, pp. 216–223. Frauenfeld, 1905.
CHAPTER XIII
Marcus A. Root. The Camera and the Pencil; or the Heliographic Art, its theory and practice. Philadelphia, 1864.
Pennsylvania Arts and Sciences. A quarterly published by the Pennsylvania Arts and Sciences Society. Vol. 2, p. 25. Philadelphia, 1937.
Richard Buckley Litchfield. Tom Wedgwood—The First Photographer. London, 1903.
Georges Potonniee. Histoire de la Découverte de la Photographie.
Paris, 1925.
The History of the Discovery of Photography. Translated from the French by Edward Epstean. New York, 1936.