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Cover of Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The North River Tunnels. Paper No. 1155

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The North River Tunnels. Paper No. 1155

W. L. Brown

4.4
Cover of Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The East River Tunnels. Paper No. 1159

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The East River Tunnels. Paper No. 1159

James H. Brace

3.9
Cover of Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The East River Division. Paper No. 1152

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The East River Division. Paper No. 1152

Alfred Noble

4.0
Cover of Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The Bergen Hill Tunnels. Paper No. 1154

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The Bergen Hill Tunnels. Paper No. 1154

F. Lavis

4.7
Cover of Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad,; The North River Division. Paper No. 1151

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad,; The North River Division. Paper No. 1151

Charles M. (Charles Mattathias) Jacobs

3.9
Cover of Report of the Hoosac Tunnel and Troy and Greenfield Railroad, by the Joint Standing Committee of 1866.

Report of the Hoosac Tunnel and Troy and Greenfield Railroad, by the Joint Standing Committee of 1866.

Tappan Wentworth

3.2
Cover of Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The Cross-Town Tunnels. Paper No. 1158

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; The Cross-Town Tunnels. Paper No. 1158

James H. Brace

3.2
Cover of Facts and Figures Concerning the Hoosac Tunnel

Facts and Figures Concerning the Hoosac Tunnel

John J. Piper

4.6
Cover of Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; Paper No. 1150

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910: The New York Tunnel Extension of the Pennsylvania Railroad.; Paper No. 1150

Charles W. Raymond

2.1
Cover of Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910, Start/End Papers: The New York Tunnel Extension of the Pennsylvania Railroad

Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910, Start/End Papers: The New York Tunnel Extension of the Pennsylvania Railroad

Various

3.0