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Sub-Categories Building Construction Chemical Technology Electrical Engineering (and computer networks); Nuclear Engineering Engineering (General and Civil) General Highways, Railways, and Bridges Home Economics (including food and cooking) Hydraulic and Ocean Engineering Manufacturing, Arts and Crafts Mechanical Engineering Mining and Metallurgy Motor Vehicles, Air and Space Technology Photography

Free Technology Books - Highways, Railways, and Bridges Nonconventional Concrete Technologies: Renewal of the Highway Infrastructure by National Research Council National Materials Advisory Board (page images and partial HTML at NAP) The New York Subway: Its Construction and Equipment (1904 edition) by Interborough Rapid Transit Company (illustrated HTML at k2nesoft.com) Tunneling Under the Hudson River (New York: John Wiley and Sons, 1885) by S. D. V. Burr (illustrated HTML at tmk.com)