Development of the American rail and track

by Watkins, J. Elfreth
Published 1890

John Stevens and his sons : early American engineers

by Watkins, J. Elfreth (John Elfreth), 1852-1903, Watkins, J. Elfreth
Published 1892

Contributions of the Department of Transportation and Engineering to the Ohio Valley Centennial Exhibition, 1888 /

by Watkins, J. Elfreth (John Elfreth), 1852-1903, Watkins, J. Elfreth (John Elfreth), 1852-1903, Watkins, J. Elfreth (John Elfreth), 1852-1903, Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1888

The development of the American rail and track, as illustrated by the collection in the U.S. National Museum

by Watkins, J. Elfreth (John Elfreth), 1852-1903, Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

Beginnings of engineering ..

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

The log of the Savannah /

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1892

The development of the American rail and track, as illustrated by the collection in the U.S. National Museum

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

History of the Pennsylvania Railroad Company, 1846-l896 : in its relation to the Pennsylvania state canals and railroads and the consolidated system east and west of Pittsburgh

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1896

The place of the electrical industries in history : address delivered at the decennial celebration of the establishment of the electrical lighting industry in America, by the Natio...

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

The Camden and Amboy Railroad; origin and early history Address delivered at Bordentown, N.J., November 12th, 1891, upon the completion of the monument erected by the Pennsylvania...

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1892

Report on the section of steam transportation in the U.S. National Museum for the year ending June 30, 1886

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1889

Camden and Amboy railroad : origin and early history : address ... 1891

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

The log of the Savannah By J. Elfreth Walkins...

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1892

The Ramsden dividing engine

by Watkins, J. Elfreth (John Elfreth), 1852-1903

The log of the Savannah

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1891

The Camden and Amboy railroad

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1892

The transportation and lifting of heavy bodies by the ancients, a probable method

by Watkins, J. Elfreth (John Elfreth), 1852-1903

The transportation and lifting of heavy bodies by the ancients

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1898

Report on the section of transportation and engineering in the U.S. National Museum 1888

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1890

History of the Pennsylvania Railroad Company 1846-1896, in its relation to the Pennsylvania state canals and railroads ..

by Watkins, J. Elfreth (John Elfreth), 1852-1903
Published 1896