United States. Engineer Dept. Putnam's ploughing and dredging machine : letter from the Secretary of War, transmitting a report in relation to the "ploughing and dredging machine" invented by Doctor James R. Putnam. December 15, 1845--

United States. Engineer Dept.

Putnam's ploughing and dredging machine : letter from the Secretary of War, transmitting a report in relation to the "ploughing and dredging machine" invented by Doctor James R. Putnam. December 15, 1845--

[Washington] : Ritchie & Hiess, printers, [1845]

Transmitting reports from the Bureau of Topographical Engineers concerning the experiments with Putnam's plough dredge.

Dredges.

United States. War Dept.

Putnam, James R.

If you are not immediately redirected, please click here