London: Longman, [et. al.], 1860. First edition, 2 volumes, 8vo; 3 large folding maps hand-colored in outline, 5 other full-page maps and plans, each with hand-coloring, numerous woodcut illustrations in the text, plus 20 rather spectacular chromoxylographic plates from photographs taken by Humphrey Lloyd Hime, photographer to the expedition, or from sketches by John Fleming, assistant surveyor and draughtsman; ex-James J. Hill Library, with James J. Hill's bookplate, perforated stamps on title pages (not touching any text), pages slightly browned; volume I neatly rebacked with old spine laid down; volume II with joints and extremities rubbed, else good or better in contemporary full calf, gilt-decorated spines, red and black morocco labels. Due to the nature of the chromoxylographs these plates in many copies of the book are badly darkened at the borders; here, these plates show some slight staining, but are for the most part very clear. Sabin 31933: "During this exploration, Mr.…