Transactions of the American Society of Civil Engineers, Vol. Lxviii, Sept. 1910, Start/end Papers: The New York Tunnel Extension of the Pennsylvania Railroad

Published in September 1910, 'Transactions of the American Society of Civil Engineers, Vol. LXVIII' is a compilation of technical papers focused on the New York Tunnel Extension of the Pennsylvania Railroad. Authored by various prominent engineers, it details innovative tunneling techniques, construction methodologies, and infrastructure development of the early 20th century. This volume serves as a significant resource for understanding the advancements in civil engineering and the legacy of its contributors, featuring technical drawings and profiles that illustrate the engineering challenges of the time.