Wheeler Survey field notebook no. 21: meteorological records; reconnaissance, Nevada and Arizona Image Read more about Wheeler Survey field notebook no. 21: meteorological records; reconnaissance, Nevada and Arizona
Wheeler Survey field notebook no. 1: sextant observations Image Read more about Wheeler Survey field notebook no. 1: sextant observations
Map Showing Detailed Topography of the Country Traversed Image Read more about Map Showing Detailed Topography of the Country Traversed
