The Blood of the Nation
 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.