# Population

Free to read here, from Project Gutenberg.

4 titles; page 1 of 1.

- [An Essay on the Principle of Population](https://invisiblenetwork.ai/books/gutenberg/4239) by T. R. Malthus
- [Essays on Mankind and Political Arithmetic](https://invisiblenetwork.ai/books/gutenberg/5619) by William Petty, Sir
- [The Fertility of the Unfit](https://invisiblenetwork.ai/books/gutenberg/16254) by W. A. Chapple
- [The population problem](https://invisiblenetwork.ai/books/gutenberg/77753) by A. M. Carr-Saunders