elatery

[…] I conceive the Caverns of the Earth vvherein the inflamed Damps are contained, are much larger there than ours in England; and the Force of the Fire, joined with the Elatery of the Air, being exceeding great, may of a ſudden heave up the Earth, yet not ſo far as to rend it in ſunder, and make its VVay out, but is forced to ſeek paſſage vvhere it finds leaſt Reſiſtance through the lateral Cuniculi.