| Author: | Greely, A. W. (Adolphus Washington), 1844-1935 |
| Subject: | G, QC, Geography, Meteorology |
| Format: | Reprinted from: The National Geographic Magazine, Vol. III., PP. 41-52, May 1, 1891, Electronic text |
| Date issued: | 2020 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Geography of the Air [electronic resource] / A. W. Greely |