Reports of Explorations and Surveys, to ascertain The Practicability of a Ship-Canal between The Atlantic and Pacific Oceans, by the way of The Isthmus of Tehuantepec

A very nice example of this report describing the practicability of a ship canal between the oceans. Title: "Reports of Explorations and Surveys, to ascertain The Practicability of a Ship-Canal between The Atlantic and Pacific Oceans, by the way of The Isthmus of Tehuantepec"This is the more desirable Senate edition; 42nd Congress, 2nd Session, Ex. Doc. No. 6The report contains many maps and elevation profiles as listed in the contents (see image thus).