Mineralogy Annual Reports of Progress The files making up this class all derive from the office of the Keeper of Mineralogy, although they were not kept as a discrete series. Many of the papers are drafts or office copies of papers submitted to the Director or Trustees, either for publication (DF16/1), internal circulation (DF16/4, 6-8) or for reference (DF16/2-3). Top copies of these papers should all be held in the Trustees and Directorate papers. Other papers were prepared for the Keeper for his own use within the Department (DF16/5, 9-10). 1900-1972