A. A. Humphreys, chief of engineers until June 1879. Succeeded by H. G. Wright. Date of publication for vol. 2. Astronomy and barometric hypsometry: 1877 (t.p.) Available also through the Library of ...
Contributor: Geographical Surveys West of the 100th Meridian (U.S.) Site: American Memory-cultural - Main Catalog Original Format: Book Date: 1889 View catalog record