Chemical Warfare Department Various papers including memos by Major-General Henry Thuillier, (Controller, Chemical Weapons Department) on the properties and uses of chemical shell fillings (2), the delays in providing gas shells; notes of meeting (chaired by WSC) on the provision of HS gas and gas shell; papers on bonuses to be paid to munitions workers employed in connection with HS gas; report on status of Chemical Warfare problems in September 1918; General Staff pamphlet on the Employment of Chemical Substances in Warfare.