3 adverbs to describe how to gas

As to producer or furnace gases, I know practically nothing, except that sometimes it pays better to burn your candle as a candle than make it into gas, and burn it as a gas afterward.

A Sergeant inside was badly gassed.

Some had apparently been gassed outside, some with masks on and some without, and had crawled, dying, into the dug-outs in the vain hope of finding protection there.

3 adverbs to describe how to  gas  - Adverbs for  gas