Vols. for 1924-Apr. 1943 published by the North Carolina Historical Commission; July 1943-spring 1972 by the State Dept. of Archives and History; summer 1972- by the Office of Archives and History; by the Division of Archives and History.
"The report ... represents a summary of the field investigations and laboratory research carried on by the Tennessee Valley Authority and the United States Bureau of Mines over a period of several years"--Foreword.