Gas chamber carbon monoxide as the lethal agent. Sometimes a box filled with anesthetic gas is used to anesthetize small animals for surgery or euthanasia. Gas chamber A gas chamber is an apparatus for killing humans or other animals with gas, consisting of a sealed chamber into which a poisonous or asphyxiant gas is introduced. The most commonly used poisonous agent is hydrogen cyanide; carbon dioxide and carbon monoxide have also been used. Gas chambers were used as a method of execution for condemned prisoners in the United States beginning in the 1920s and continue to be a legal execution method in
Lawn mower racing engines and chassis from regular model mowers. Also, where go-karts are exclusively raced on relatively flat surfaces, lawn mowers can be raced off-road. Since the summer of 1984, the North Wilkesporo Rotary Club has played host to lawnmower racing at its Wilkes County Agricultural Fairground facility. Sanctioned by the Allegheny Mower Racing Association, oval track racing on the dirt is reminiscent of the beginnings of stock car racing at the North Wilkesboro Speedway and the birth of NASCAR. Crowds have grown from a few hundred to gatherings of thousands on several Saturday nights from June through September. The Wilkes County