- The Law of Population: A Treatise, in Six Books; In Disproof of the Superfecundity of Human Beings, and Developing of the Real Principle of Their Increase
- The Second Speech of Michael Thomas Sadler, Esq., M. P. in the House of Commons, on the Third Reading of the Roman Catholic Relief Bill, March 30, 1829 (Classic Reprint)
- Ireland: Its Evils and Their Remedies: Being a Refutation of the Errors of the Emigration Committee and Others Touching That Country: To Which Is Prefixed a Synopsis of an Original Treatise, About to
- The Law of Population: A Treatise, in Six Books; In Disproof of the Superfecundity of Human Beings, and Developing of the Real Principle of Their Increase Volume 1
- The law of Population: A Treatise, in six Books; in Disproof of the Superfecundity of Human Beings, and Developing of the Real Principle of Their Increase Volume 2