General papers concerning supply of munitions, 1915-1917, (fols. 1-17) correspondence discussing supply of raw materials, spelter, manganese and ferro-silicon, 1915; (fols. 18-40) notes by Sir Richard Glazebrook of the National Physical Laboratory, and by the Department of Explosives Supply, 1915-1916; (fols. 41-46) correspondence from the National Health Insurance Committee, concerning supplies of bromine and bromides for medical and military uses, Sept. 1915; and (fols. 47-437) papers on steel and iron ore production including meetings with producers, and (fols. 404-437) negotiations with the Admiralty on merchant and naval ship building, 1916-1917.