Twintigste Taptoe Delft 24 aug t/m 1 sept Diggers' in France: lightning spade-work; gas-proof dug-outs En avant in anti-gas respirators and with racket hand-grenades! A French assault. Onzijdigheid Gastvrijheid 1914-1915 Instructiekaart voor gasverkenningsuitrusting detectie. IK 5-420 How to detect gases Blood poison gas first aid Six types of war gas Charty 4. Italy used Gas in Ethiopia Chart 5. Japan used Gas in China Chart 1. The War Department expects the enemy to use gas No international law exists protecting us against use of gas