http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
compilation of 8 reports by botanists accompanying the Pacific railroad explorations and surveys made by the U.S. Engineer dept. under the direction of the secretary of war, in 1853-56
2 volumes : illustrations, plates (part color, part folded) folded map.
For complete reports of the expeditions, from which these are extracted, see: U.S. War dept. Reports of explorations and surveys ... for a railroad from the Mississippi river to the Pacific ocean. 12 volume.