Book/Printed MaterialReport upon United States Geographical surveys west of the one hundredth meridian 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.) - Wheeler, George M. (George Montague) - Humphreys, A. A. (Andrew Atkinson) - Wright, Horatio Gouverneur
- Date: 1889