Report of the exploring expedition to the Rocky Mountains in the year 1842 : and to Oregon and North California in the years 1843-44
(Book)

A report on an exploration of the country lying between the Missouri River and the Rocky Mountains, on the line of the Kansas and Great Platte rivers [1842].- Catalogue of plants collected by Lieut. Fremont in his expedition to the Rocky Mountains. By John Torrey.- A report of the exploring expedition to Oregon and north California, in the years 1843-'44.- App. A. Nature of the geological formations occupying the portion of Oregon and north California included in a geographical survey under the direction of Capt. Fremont; by James Hall.- App. B. Descriptions of organic remains collected by Capt. J. C. Fremont, in the geographical survey of Oregon and north California; by James Hall.- App. C. Description of some new genera and species of plants, collected in Capt. J. C. Fremont's exploring expeditions to Oregon and north California, in the years 1843-'44; by John Torrey and J. C. Fremont.- Astronomical observations made during the expedition of 1843-'44.- Meteorological observations made during the expedition of 1843-'44. Astronomical observations made during the expedition to the Rocky Mountains in the year 1843.- Meteorological observations [1842]