The official cause was " poisoning by irrespirable gases ."
2.
A passenger, Richard Liffidge, 72, of Georgia, died from " asphyxia secondary to inhalation of smoke and irrespirable gases " and thirteen other passengers suffered significant smoke inhalation.
3.
Within a matter of months, normal ventilation was restored to the Slant section : this work was, to that date, the first ever reopening of a pit by men working in an irrespirable atmosphere.
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