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Washington: Smithsonian Institution Press, 1973. Pamphlet. 50p., 8.5x11 inches, frontis-photo, illustrated with photos, drawings, reproductions, detailed engineering plans, notes, top corner bumped, else very good in original pictorial stapled wraps. Smithsonian Studies in History and Technology Number 25.
no place: State Engineer and Surveyor, 1915. Pamphlet. 8p., 5.75x9 inches, illustrated with 4 b&w photographic plates, a table, and a 16x15.5 inch color folded map tipped-in at rear, staples rusted, lightly handled, else very good in original stapled wraps. History and description of the progress of the canal system.....