| Author: | Barker, George F. (George Frederick), 1835-1910 |
| Subject: | Q, Science |
| Format: | Electronic text |
| Date issued: | 2021 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Half Hours With Modern Scientists : Lectures and Essays [electronic resource] / George F. Barker |