The statements, not derived from the papers and other periodicals, letters, books, &c., published by slaveholders, have been furnished by individuals who have resided in slave states, many of whom are natives of those states, and have been slaveholders. The names, residences, &c. of the witnesses generally are given. A number of them, however, still reside in slave states;--to publish their names would be, in most cases, to make them the victims of popular fury. New York, May 4, 1839. NOTE. The Executive Committee of the American Anti-Slavery Society, while tendering their grateful acknowledgments, in the name of American Abolitionists, and in behalf of the slave, to those who have furnished for this publication the result of their residence and travel in the slave states of this Union, announce their determination to publish, from time to time, as they may have the materials and the funds, TRACTS, containing well authenticated facts, testimony, personal narratives, &c. fully setting forth the _condition_ of American slaves. In order that they may be furnished with the requisite materials, they invite all who have had personal knowledge of the condition of slaves in any of the states of this Union, to forward their testimony with their names and residences. To prevent imposition, it is indispensable that persons forwarding testimony, who are not personally known to any of the Executive Committee, or to the Secretaries or Editors of the American Anti-Slavery Society, should furnish references to some person or persons of respectability, with whom, if necessary, the Committee may communicate respecting the writer.