This collection contains bibliographies, correspondence, reports, articles, pamphlets and drafts of papers on aerial mapping and photography (one authored by Maj. James Bagley). It also contains a dictionary of photographic terms (in German) and material on various cameras and other equipment including Adam Hilger Ltd.'s Survey Stereoscope; Fairchi...

This series contains monthly listings showing debits and credits for a variety of accounts such as colliery material and supplies, cost of coal production, machinery and equipment, payrolls, stripping expenses, townships, and vouchers. Titles of accounts are generally in alphabetical order. Monthly debit and credit totals of all accounts are listed...

The Philip Van Horn (P. V. H. ) Weems Papers contain 79 cu. ft. of materials related to his life and career.

This series consists of the book cost and depreciated value of collieries including mines, offices, washery plants, power houses and sub-stations, railroads, shops, and storehouses, 1898-1912. There are a few inventories showing the cost of fire arms and mules and an inventory of improvements, 1909-1910, made to the Kaska-William Colliery of the Al...

The Magellan Systems Corporation Records document various aspects of the development of several different Magellan GPS devices through engineering, research, design, manufacturing, and marketing records. Magellan Systems Corporation introduced the first hand-held differential GPS product and the conpany's focus was on research, product engineering, and design activities for GPS receivers. The collection includes correspondence and internal company reports and memoranda; design drawings; research notes; engineering notebooks, technical notes, schematics; photographs, slides and negatives; video and audiocassettes; advertisements; product literature, magazine articles and newspaper clippings; press releases; and user guides and manuals.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Accounting and Bookkeeping forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

This collection consists of records primarily of the Lehigh Coal and Navigation Company. Additionally, there are records of the Lehigh Navigation Coal Company and subsidiary companies including the Alliance Coal Mining Company. These records mostly describe anthracite mining in the vicinity of Mauch Chuck and Summit Hill, Pennsylvania. Also include...

The papers document the life and work of William R. Hutton, a civil engineer during the late 1800s to the early 1900s. Materials include diaries, notebooks, correspondence, letterpress copy book, printed materials, publications, specifications, photographs, drawings, and maps that document the construction of several architectural and engineering projects during this period. Most notable are the records containing information related to the construction of the Chesapeake and Ohio Canal, Hudson River Tunnel, the Washington Aqueduct, the Kanawha River Canal, and the Washington/Harlem River Bridge. There are also several records about railroads in the state of Maryland, the District of Columbia and elsewhere, including the Western Maryland Railroad, Baltimore and Ohio Railroad, Colorado Midlands Railway, Baltimore and Drum Point Railroad, the Northern Adirondack Railroad, and the Pittsfield and Williamstown Railroad. The records can be used to track the progression of these projects, and engineering innovation during the late 1800s to the early 1900s.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Instruments forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

The subject reference files of Revista Aérea Latinoamericana regarding aviation in Latin America during 1937-2003.