Lantern slides relating to various engineering and mining subjects.
Records of the Borsig Steam Engines installed at the Philip Carey Manufacturing Company, Lockland, Ohio. The papers include engine logs, drawings, an index to the drawings (in German), articles, and black-and-white photographs.
Four scrapbooks containing items relating to the Baldwin Locomotive Works, including: blueprints, photographs, examples of company letterhead and blank company forms, clippings and articles, business records such as contracts and specifications, trade literature, and miscellany.
A photograph album documenting road building in cities on Long Island, New York.
The collection documents personal correspondence between Reuben Moffat and his father, John Little Moffat. The materials consist primarily of letters written during the year 1852 and detail Reuben Moffat's attempts to obtain a patent for his electric gold washer and magnetic separator invention.
Primarily printed materials relating to power plants and boilers in the city of New York: articles and reprints, technical journals, trade literature, notes, reports, charts, and graphs, and test data; also publications containing descriptions and specifications on individual power stations in New York.
Approximately 350 stereo cards of engineering subjects, such as bridges, tunnels, lighthouses, canals, quarries, etc., including both U.S. and foreign subjects.
Black-and-white photoprints of mills, taken ca. 1916-1917, some captioned in shorthand; a notebook, also in shorthand; two postcards of mills; a typescript essay entitled "On the Hunting of Old Mills"; and maps, presumably used to find the mills. Of those captioned, most of the mills in the captioned photographs are in Maryland and Virginia.
Collection documents the location and existence of bridges for several of the Lake Shore and Michigan Southern Railway lines.
The collection consists of photoprints documenting the construction of the Northern Pacific Railway.