Chart 19 The enemy uses gas to put you out of action Chart 21. The enemy uses gas to delay you Chart 22. The enemy uses gas to damage food, water, and equipment Chart 23. A gas attack can come at anytime Chart 24. Gas lasts longer in woods and low places Chart 43. Gas sentinels mask and sound alarm immediately special series Enemy capabilities for chemical warfare / prepared by military intelligence service, War Department gas mask - USA Technical Manual, TM 3-205 Fuel distribution and storage : Gas distribution / War Department. Office of the Chief of Engineers air raid precautions handbook Personal protection against gas / issued by the Home Office, Air raid precautions department Engelse militair met een vat bij een bord met de aanduiding 'Gas-Cong' - Serie: Twintig dia's van persfoto's W.O. I Weest zuinig met gas : belangrijke wenken om met weinig gas veel te doen
