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…with a vast gaping, made round into many circles, from greater to lesser, like an Amphitheater, or stage, one below another. This, at the time of the Aequinoctials, chiefly by the blast of the Northern winds, raging with smoak and flames, reduces all neighbour places round about, overwhelm’d with ashes and cinders into desolation. The Maurecan Islands seem…
https://www.wichita.edu/academics/fairmount_las/geology/wparcell/Kircher/volcanoes/chapter4.php