FOOTNOTES:

[Footnote A: Brigadier-General, U. S. Army, _Retired_; Chairman,

Board of Engineers, Pennsylvania Tunnel and Terminal R. R. Co.]

Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150 · 第 15 / 15 题