Scientific Spirit of American Humanism:Recent polls show that a quarter of Americans claim to have no religious affiliation, identifying instead as atheists, agnostics, or ""nothing in particular."" A century ago, a small group of American intellectuals who dubbed themselves humanists tread this same path, turning to science as a major source of spiritual sustenance. In The Scientific Spirit of American Humanism, Stephen P. Weldon tells the fascinating story of this group as it developed