Confederate States of America. 1863. Nitre and Mining Bureau.. Circular C. S. War Department, Nitre and Mining Bureau, Richmond, Dec. 1, 1863.
Confederate States of America. Nitre and Mining Bureau. Message of the President ... Feb. 15, 1865 and Communication From Secretary of War Transmitting a Report From the Chief of the Nitre And Mining Bureau. Richmond, 1865. "Iron Industry and Trade." "Information ... relative to the number of iron furnaces and forges worked by agents of the government or by contractors, during the year 1864, and to the cost per ton of the several kinds of iron furnished by them."
osu.edu
ehistory.osu.edu
War of the Rebellion: A COMPILATION OF THE OFFICIAL RECORDS OF THE UNION AND CONFEDERATE ARMIES. Serial 127 Pages 1059-1060.
unc.edu
docsouth.unc.edu
"CHAP. XXXV.--An Act to establish a Nitre and Mining Bureau. April 22, 1863." By Authority. THE STATUTES AT LARGE OF THE Confederate States of America, PASSED AT THE THIRD SESSION OF THE FIRST CONGRESS; 1863. Carefully collated with the Originals at Richmond. EDITED BY JAMES M. MATTHEWS, ATTORNEY AT LAW, AND LAW CLERK IN THE DEPARTMENT OF JUSTICE. TO BE CONTINUED ANNUALLY. RICHMOND:
R. M. SMITH, PRINTER TO CONGRESS. 1863. Page 114.