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Everybody in the trenches is keenly on the alert at all times for the first indications of varour rising in the direction of the German trenches whenever the wind is light and blowing from the enemy’s quarters, and various devices are in use for giving an instant warning of coming poison gas to all in the vicinity. One of the most usual we see
here-an alarm-gong fashioned out of a used German shell-case which is sase;:ed so as to sound clear and loud on being struck near the trench look-out post. Immediately the tale-telling clang is heard, officers and men fasten on their resp:rators and leave tit, dug-outs for the open trench, there to await developments.
MRruc.,ny FEnrOnC VILT.,IRS. OUR SPvCIaL Aar r IN TIll NVI’tI KS Ilk. ‘fll OFW IF.· Io F C(IO ICHI IN C III U’11 11CI, A D n IC+IIC.