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…there. For Baronius himself, in his Ecclesiastick Annals of the year 726. seems to give credit to Pliny. For thus he speaks. A vapor was seen to bubble forth out of a Chimny of Fire, between the Islands Thera and Therasia, (or Santorin), from the very bottom of the Sea, for some dayes; whereby the burning of the fiery heat, by little and little being…
https://www.wichita.edu/academics/fairmount_las/geology/wparcell/Kircher/volcanoes/chapter4.php