Books on Lighthouses and Bridges (3). Heap, Major D.P. Ancient and Modern Light-Houses. Boston, Ticknor and Company, 1889.33 plates, some double-page, numerous other illustrations including views, plans, construction details, &c., x,222pp., (8)pp. Adverts at end, square 8vo., cloth, inconspicuously rebacked with original gilt-titled spine laid over. Front flyleaf neatly replaced to match. Ingleton bookplates on front pastedown. a decent copy of a very scarce book; Tuit, J.E. the Tower Bridge, Its History and Construction From the Date of the Earliest Project to the Present Time. London, Office of 'The Engineer', 1894. Frontispiece, 6 folding plates at rear, 84(?) plates, drawings and figures through text, 106pp., large 4to., publisher's green cloth with gilt titles, some minor rubbing. a very good copy.The illustrations are erratically numbered and placed out of sequence, but 84 seems to be the total. a fine record with much engineering detail drawing, photos of work in progress, illustrations of previous unbuilt designs &c. Douglas, Major-General Sir Howard. An Essay on the Principles and Construction of Military Bridges and the Passage of Rivers in Military Operations. second Edition, containing much additional matter. London, Thomas and William Boone, 1832. Frontispiece, 12 folding plates of designs, details and equipment, (6),vi,417pp.,28pp.appendix,12pp.index, pages untrimmed, rear flyleaf replaced, large 8vo., publisher's brown moire cloth boards a little marked and bumped, original paper spine label chipped and browned not touching title. the boards have sometime been neatly re-attached. Internally very good.