hardcover. Compte Rendu de la 5me Session, Washington, 1891. several color folding maps, b/w plates, text illus. ix, 529pp. 8vo, 1/2 contemporary brown morocco; (spine lightly rubbed, otherwise very good). Washington: Imprimerie du Gouvermement, 1893.
Text in English. Most of the text is on the Rocky Moutain region. The rest is on areas around Washington, D.C. and Lake Superior.