An invaluable discovery. P. B. Templeton, B. P. Worcester and the heirs of Col. John H. Sherburne, proprietors [drop title].
[Washington, D.C. [Buell & Blanchard, printers, n.d.], [ca. 1852]. 12mo, 12pp., stitched, as issued; 1 folding lithograph plate; fine. A proposal for making approaches to harbors safe in foul weather, by submerging a cable of considerable length sufficiently below the surface of the water that a ship might purposely snag..... More