The Blood of the Nation: A Study in the Decay of Races by the Survival of the Unfit was the title of a number of publications by the American eugenicist David Starr Jordan, president of Stanford University . Jordan's thesis under this name first appeared in the May 1901 edition of Popular Science Monthly. It was republished in book form by the American Unitarian Association in 1902 and again in 1910. The Blood of the Nation was intended to promote the eugenics movement and bring its aims to a broader non-academic audience. In it, Jordan hypothesized that much of the social decline after wars stemmed from 'the dysgenic effects of that conflict, which destroyed the fittest and left young widows who did not remarry and produce more children'.In critiquing Jordan's paper in 2001, Elof Axel Car