A world engrossed as never before with defining the rights and Obligations of nationalities and with mitigating the causes of national and international discord cannot afford to ignore the fer tile field for study presented by the great migrations of our day. Among these the Italian easily ranks first in importance, and it is typical in many respects Of the rest. The problems it exhibits are fundamental, and they stand forth in such sharpness of relief and such largeness of dimension that there can be no mistaking their nature.