Chapter III: XI of Vol. III--Red River. Exploring

Expedition of 1806. Return to the Arkansa. Earthquakes 61

A General Description of the Country traversed by the exploring
Expedition. _Stephen Harriman Long_ 94

Observations on the Mineralogy and Geology of a Part of the
United States west of the Mississippi. _Augustus Edward
Jessup_ 183

Calculations of Observations made ... on a tour from
the Council Bluffs on the Missouri River, westward along
the river Platte to its head waters in the Rocky Mountains,--thence
southwardly to the head waters of the
Arkansa and Canadian rivers, and down said rivers to
Belle Point, performed in 1820. [From Philadelphia
edition, 1823]. _Stephen Harriman Long_, and _William
Henry Swift_ 256

Vocabularies of Indian Languages [from Philadelphia edition,
1823]. _Thomas Say_ 289

ILLUSTRATION TO VOLUME XVII

Vertical Section on the Parallel of Latitude 41 degrees North;
and on the Parallel of Latitude 35 degrees North 185