Facts
- Author
- Various
- Language
- English
- Project Gutenberg No.
- 15052
- Released on Project Gutenberg
- February 14, 2005
- Bookshelves
- Scientific American, Science - Chemistry/Biochemistry, Science - Earth/Agricultural/Farming, Engineering & Technology
- Subjects
- Science – Periodicals
- Public domain in the USA
- yes
Sources: Project Gutenberg catalogue (public domain), Wikidata (CC0)