Collection of civil and mechanical engineering textbooks used by Alexander Harrison, C.E.1913. Also includes sheets exams, problem notes, clipping and a photograph.

Materials on Bethlehem Steel (including ephemera, catalogs, technical reports and drawings), Lehigh University (brochures, reports, Alumni Association publications); publications on manufacturing of steel and steel products, Pennsylvania and Lehigh Valley municipal maps compiled by Charles R. Nippert, Lehigh Class of 1947, a mechanical engineer at Bethlehem Steel Corporation.

Includes three holograph notebooks by F. duP. Thomson, Lehigh 1890, evidently made as part of his course work at Lehigh in 1888-1890. Also includes a bound compilation of holographic notes titled Sophomore Shop Visits, 1892." All are notes and drawings of specific generic equipment, with no names or locations of places visited.