Facts
- Author
- Hardley, Robert
- Language
- English
- Project Gutenberg No.
- 11244
- Released on Project Gutenberg
- February 1, 2004
- Bookshelves
- Science - Physics, Engineering & Technology
- Subjects
- Navigation (Aeronautics) – Early works to 1900
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)