Department of Munitions Supply, Branch Memoranda, 1915-1917, (fols. 1-85) 'Flame Projectors' papers, 1915-1916, including negotiations with the Army and War Office and discussion of gas; (fols. 86-111) 'Notes on shields and body armour', 1915-1917; (fols. 112-128) 'Wolfram and Tungsten supplies', in the Lake District, Jan.-Feb. 1916; (fols. 129-267) 'Defence of the Realm (Acquisition of Land) Bill', 1916; (fols. 268-300) report of a visit to Birtley National Projectile Factory and discussion…