Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150by Raymond, Charles W.Read nowAdd to libraryLanguage: en · 461 downloads on Project GutenbergCivil engineering -- PeriodicalsRailroad tunnels -- Design and constructionTAIn: Technology · Category: History - American · Category: Engineering & TechnologyPublic-domain ebook sourced from Project Gutenberg #18229.