| During the 20th century, many researchers studying heredity sought to apply their findings in the arena of mental health and human (mis)behavior. Many of these have examined, from the perspective of heredity and genetics, the desire to drink and its consequences. In this paper, the author examines hereditary explanations of alcoholism in two historical snapshots: the early decades of the 20th century and in the 1990s. Two things come to light. First is the persistence of an |