In 1911, the influential geneticist Charles Davenport published Heredity in Relation to Eugenics, advancing his ideas of how genetics would improve society in the 20th century. It became a college textbook and a foundation for the widespread eugenics movement in the United States. Nearly 100 years later, many of the issues raised by Davenport are again being debated, in different guises. In this new volume, prominent academics discuss themes from Davenport's book-human genetic variation, mental illness, nature vs. nurture, human evolution-in a contemporary context. Davenport's original book is reprinted along with the essays. This book will be useful to historians of science as well as those interested in the social implications of human genetics research-past, present, and future.