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

by Francis Mason, James H. Brace

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Civil engineering -- Periodicals; Railroad tunnels -- Design and construction