Department of Munitions Requirements and Statistics files, 1915-1917, (fols. 1-25) 'The effect of the strikes upon deliveries of gun equipments', 1915-1917; b (fols. 26-319) reports, 1915-1917, including (fols. 27-43) 'Report by the French General Staff on German Artillery tactics at Verdun, June-July 1916', (fols. 54-135) reports received from the Director of Military Intelligence, June-Dec. 1916, on weapons advances in Germany and on situation in Germany, with reports on gas attacks at…