Visual Materials
The collection consists of 167 photographs produced by the Langenheim brothers between 1850 and 1874. These include: 161 stereographs (including variants and copies of the same image), 3 lantern slides, 2 salt prints in glass stereograph format, and 1 microphotograph, along with 5 stereograph image mats. The bulk of the collection contains depictions of natural landscapes, landmarks, and architecture of Niagara Falls, Kaaterskill Falls, New York City, the Minehill Gap, Philadelphia, and New Hampshire; and various railroads, bridges, statues and monuments throughout the Northeast region of the United States. There are a few portraits of prominent figures from the region, including Washington Irving (1783-1859). There are also a few stereographs from France and Italy; these photographs were most likely not taken by the Langenheim Brothers but were offered and sold under their name. Additionally, there are two salt prints of Niagara Falls in glass stereograph format. The three lantern slides are mounted in wooden frames and depict Niagara Falls, Girard College, and the Jas Dundas Mansion in Philadelphia. There is one microphotograph of the printed text of the Ten Commandments verse from the Bible. A few of the stereographs and the three lantern slides are hand colored. Photographs are glass stereographs unless otherwise noted. Titles are transcribed from image mats; titles enclosed in square brackets were devised by the archivist.
photCL 756
