Chart 18. Land mines / Rocket gun / chemical cylinders / grenade 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 42. Impregnated uniform, protective cover Chart 43. Gas sentinels mask and sound alarm immediately gas mask - USA Technical Manual, TM 3-205 war department technical manual Deceased personnel within the continental Unites States, including Alaska : AR 600-550 war department technical manual Correspondence war department technical manual Records administration : microfilming of records
