This pioneering work of population theory and political economy, first published in 1920, remains an important touchstone for contemporary debates about ecology, family planning, and social justice. The Malthusian argues that unchecked human reproduction will inevitably lead to famine, war, and social unrest, and proposes a range of radical solutions to this crisis. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.