PREFACE xi

L. Clarke for the use of passages from “American Men of Letters: Their Nature and Nurture”; to Columbia Studies and Mabel P. Lee for the use of passages from “The Economic History of China, with Special Reference to Agriculture”; to F. W. Williams, for the use of passages from a manuscript entitled, “A History of China”; to S. S. Visher, for the use of “A Study of the Type of Place of Birth and Occupations of Fathers of Persons in Who’s Who in America.” E H

YALE UNIVERSITY, NEW HAVEN, Comm, August, I924.