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[Page 82]
Gas
it for from 20 to 24 hrs after inhaling it, he then collapses & is as a rule beyond help. Chlorine can be seen approaching as a yellowish green cloud in fine weather & in wet weather as a whitish mist. 1 pt of this gas to 10000 pts air is fatal to man. When everything is ready we get the order to put on our P.H. helmets & after a careful inspection by the gas officer we file into the gas charged chamber (a room about 12 ft square with patent doors), about 12 men at a time & remain in it for about 5 minutes, then making room for the next batch of men. Accidents happen now & then, mostly through
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