[Bound with] A Treatise on the Action of Vis Inertiae in the Ocean. London: Longmans, Green, and Co. 1868. First editions. 8vo. pp. 56, viii, [1], 212; 12 plates and charts to second work including two folding, two 4pp. Supplements to the second work bound in at end of text (both published in Buenos Ayres, 1870); tear to inner margin of title to first work where ?blank leaf excised, minor spotting at front, else good in contemporary full calf, gilt, upper joint a little worn, bookplate of Herbert J. Gladstone.