No reverberatory effect of the great war has caused American public opinion more solicitude than the failure of the “melting-pot.” The discovery of diverse nationalistic feelings among our great alien population has come to most people as an intense shock. It has brought out the unpleasant inconsistencies of our traditional beliefs. We have had to watch hard-hearted old Brahmins virtuously indignant at the spectacle of the immigrant refusing to be melted, while they jeer at patriots like Mary Antin who write about “our forefathers.” We have had to listen to publicists who express themselves as stunned by the evidence of vigorous nationalistic and cultural movements in this country among Germans, Scandinavians, Bohemians, and Poles, while in the same breath they insist that the alien shall be forcibly assimilated to that Anglo-Saxon tradition which they unquestioningly label “American.” As the unpleasant truth has come upon us that assimilation in this country was proceeding on lines very different from those we had marked out for it, we found ourselves inclined to blame those who were thwarting our prophecies. The truth became culpable. We blamed the war, we blamed the Germans. And then we discovered with a moral shock that these movements had been making great headway before the war even began. We found that the tendency, reprehensible and paradoxical as it might be, has been for the national clusters of immigrants, as they became more and more firmly established and more and more prosperous, to cultivate more and more assiduously the literatures and cultural traditions of their homelands. Assimilation, in other words, instead of washing out the memories of Europe, made them more and more intensely real. Just as these clusters became more and more objectively American, did they become more and more German or Scandinavian or Bohemian or Polish.