Plate II: Profile of proposed sea level canal
Board of Consulting Engineers Panama Canal - Sea level canal project : Profile of proposed sea level canal. 1905. Drawn by Chas. L. Hoopes. Julius Bien & Co. N.Y. (to accompany) Report of Board of Consulting Engineers for Panama Canal, maps and diagrams. (with) Report of Board of Consulting Engineers for Panama Canal. Washington : government Printing Office, 1906.
David RumseyUnited States. Board of Consulting Engineers for Panama Canal
1905
1906
Government Printing Office
1:50 000