Euthenics, the science of controllable environment / A plea for better living conditions as a first step toward higher human efficiency

The work defines euthenics as improving human efficiency by controlling the environment and contrasts it with eugenics, which addresses heredity. It sets out practical reforms through sanitary science, education, household management, and civic measures, emphasizing pure food, safe water, clean air, adequate housing, and balanced work and rest. Chapters advocate cooperative individual and community action, schooling that applies sanitary knowledge, adult education and public exhibits, and enforceable regulations and inspections. The text highlights the economic and moral responsibility of householders in promoting public health and increasing collective vitality.