Note 4 — THE AMERICAN TYPE OF ISTHMIAN CANAL (continued 2)
Reading edition
Report of the Board of Engineers on Deep Waterways, H. of R., Doc. No. 149, 56th Congress. 2d session, Atlas.
Reading edition
Report of the Board of Engineers on Deep Waterways, H. of R., Doc. No. 149, 56th Congress. 2d session, Atlas.