It is perhaps only when one enters upon such a study as this that he realizes how valuable are the investiga tions of Dr. W. E. B. Dubois in this field. For the earlier years the thesis, The Suppression of the African slave-trade, is really indispensable; and one of the chapters is largely based on the Atlanta Univer sity publication, The Negro Church. In a similar way is another chapter based upon the valuable study by Dr. R. R. Wright, In, entitled self-help in Negro Education. The last chapter is naturally much indebted to my own publication, The Negro in Literature and Art.