Lieutenant Haines remained at his station to assist in controlling the damage until overcome by asphyxiating gas generated by the explosion.
2.
A general concern over the use of poison gas manifested itself in 1899 at the Hague Conference with a proposal prohibiting shells filled with asphyxiating gas.
3.
For example, during the Royal Engineers Experimental Station ( near Salisbury ) to carry out experiments on asphyxiating gas, he exposed himself to an atmosphere of poisonous hydrogen cyanide.
4.
He also learned the language of mining : " firedamp, " _ the highly inflammable methane gas that snakes through coal veins; and " afterdamp, " the asphyxiating gas that follows a methane explosion.
5.
He was coughing badly _ he said he was still suffering from the canister of asphyxiating gas that a policeman shoved down the back of his track suit that day _ and said he had bruises on his arms and back from police batons.
6.
As for why it wasn't used in the same way, on the same scale and with the same openess, Also the 1925 Geneva Protocol Prohibited the use of " asphyxiating gas, or any other kind of gas, liquids, substances or similar materials " it was signed by 16 countries.
7.
On 2 May 1915 near Ypres, Belgium, when the Germans were advancing behind their wave of asphyxiating gas, Private Lynn, although almost overcome by the deadly fumes, handled his machine-gun with great effect against the enemy, and when he could not see them, he moved his gun higher up the parapet so that he could fire more effectively.
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