Inside Out Library · Explore
Scientific American, Vol. 50, No. 23 (1884) (1884)
leaf 0
l beams or angles, or other machinery, occupied thirteen hours. Even had dis- the Union Passenger Railway Company, of Philadelphia, The body of the girder or tube is about 33 inches deep; patch been unnecessary, it might have taken two weeks to which company is now completing the laying of 20 miles… … © 1884 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
More pictures from Scientific American, Vol. 50, No. 23 (1884)
More like this