[1] I discharge a duty in disclosing to the public the names of the persons to whom I am indebted for the biography of this estimable African, concerning whom Dr. Gall was the first to speak to me. Upon the request of my fellow-citizens, D'Hautefort, attache to the embassy, and Dudon, First Secretary to the French legation in Austria, they hastened to satisfy my curiosity. Two estimable ladies of Vienna, Mme. Stief and Mme. Picler, worked at it with great zeal. All the details furnished by the defunct Angelo's friends were carefully collected. From this material has been written the interesting account which follows. In the French translation it loses in delicacy of style, for Mme. Picler, who wrote it down in German, possesses the rare talent of writing equally well in prose and in poetry. I take great pleasure in expressing to these kind persons my just gratitude. DOCUMENTS LETTERS OF NEGRO MIGRANTS OF 1916-1918[1] The exodus of the Negroes during the World War, the most significant event in our recent internal history, may be profitably studied by reading the letters of the various migrants. The investigator has been fortunate in finding letters from Negroes of all conditions in almost all parts of the South and these letters are based on almost every topic of concern to humanity. These documents will serve as a guide in getting at the motive dominant in the minds of these refugees and at the real situation during the upheaval. As a whole, these letters throw much light on all phases of Negro life and, in setting forth the causes of unrest in the South, portray the character of the whites with whom the blacks have had to do. These letters are of further value for information concerning the Negroes in the North. From these reliable sources the student can learn where the Negroes settled, what they engaged in, and how they have readjusted themselves in a new situation. Here may be seen the effects of the loss resulting from the absence of immigrants from Europe, the conflict of the laboring elements, the evidences of racial troubles and the menace of mob rule. LETTERS ASKING FOR INFORMATION ABOUT THE NORTH GALVESTON, TEXAS, this 24th day of May, 1917. _Sir_: Please inform me of a situation, please ans. if fill out or not so I will no. answer at once. DALLAS, TEX., April 23, 1917. _Dear Sir_: Having been informed through the Chicago Defender paper that I can secure information from you. I am a constant reader of the Defender and am contemplating on leaving here for some point north. Having your city in view I thought to inquire of you about conditions for work, housing, wages and everything necessary. I am now employed as a laborer in a structural shop, have worked for the firm five years.