superstitious proto-racialism, they were close to committing "race suicide" by miscegenation and by being outbred by inferior stock taking advantage of the situation. Nordic theory was strongly embraced by the racial hygiene movement in Germany in the early 1920s and 1930s, in which, however, they typically used the term "Aryan" instead of "Nordic", although the principal Nazi ideologist, Alfred Rosenberg, preferred "Aryo-Nordic" or "Nordic-Atlantean". The book passed through multiple printings in the United States, and was translated into other languages, including German in 1925. By 1937, the book had sold 16,000 copies in the United States alone. In the introductions, Grant acknowledged his "great indebtedness" to three individuals: to Henry Fairfield Osborn, whose Men of the Old Stone Age Their Environment, Life and Art (1915) was a source of information for Grant's chapter on "Paleolithic Man," and "to Mr. M. T. Pyne and Mr. Stewart Davison for their assistance and many helpful suggestions." Stephen Jay Gould described The Passing of the Great Race as "the most influential tract of American scientific racism". Grant's work was embraced by proponents of the National Socialist movement in Germany and was the first non-German book ordered to be reprinted by the Nazis when they took power. Adolf Hitler wrote to Grant, "The book is my Bible." Grant's work is considered one of the most influential and vociferous works of scientific racism and eugenics to come out of the United States. One of his long-time opponents was the anthropologist Franz Boas. Grant disliked Boas and for several years tried to get him fired from his position at Columbia University. Boas and Grant were involved in a bitter struggle for control over the discipline of anthropology in the United States, while they both served (along with others) on the National Research Council Committee on Anthropology after the First World War. Grant represented the "hereditarian" branch of physical anthropology at the time, despite his relatively amateur status, and was staunchly opposed to and by Boas himself (and the latter's students), who advocated cultural anthropology. Boas and his students eventually wrested control of the American Anthropological Association from Grant and his supporters, who had used it as a flagship organization for his brand of anthropology. In response, Grant, along with American eugenicist and biologist Charles B. Davenport, in 1918 founded the Galton Society as an alternative to Boas. Immigration restriction Grant advocated restricted immigration to the United States