http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
volumes in : illustrations, 2 folded maps, portraits and portfolio (5 folded maps) ; 25 cm.
v. 1. Travels from 1838 to 1844.--v. 2. The Bear Flag revolt and the court-martial.--v. 2. suppl. Proceedings of the court-martial.
Edited by Donald Jackson and Mary Lee Spence.
The map portfolio contains a 16 page commentary by D. Jackson and 5 maps of the Fremont expeditions, map 4 being in 7 sections.