Show so something e thi ng labout a b ou t iu B burning nm ni gl aloun mountains bains jg tt k K geological theorists a assert that the inequalities on the earths surface arise from uplift in ings by volcanoes earthquakes etc and to th these e they ascribe the inclination of 0 strata etc but the minute seams in sand stone formation indicate that the whole is the effect of d depositions e ions lons an and d precipe precipitations lations tat ions lons while in the A by the bea sea and ani the antwind retreat during perihelion periods we have haxe lave the he aqueous agency required for the pre about two hundred active artive volcanoes wre re re corded of wha I alme are submarine vo volcanoes 1 canoes often throw up islands the azores ahe he lipari the canaries etc are examples 3 A the ashes from volcanoes noes often produce total darkness from thirty to fifty miles around and three hundred miles distant P pieces aces of rock are ejected with the force of ii i cannon ball cotopaxi cotopaxa once threw a piece of one hundred cubic yard yards eight miles fish ejected i from volcanoes are those of neighboring waters lava iava Is a stony substance like basalt and may sometimes be seen at the bottom of a crater I 1 red hot like melted metal bubbling 0 as a fountain when it overflows the crater is very fluid at vesuvius a i red hot current of it was vas from eight to ten yards deep two hundred or three hundred yards broad and nearly a mile long in mexico a plain was filled up by it intha into a mountain one thousand six hundred feet high by ap al eruption in 1759 its heat was so great that it continued to smoke for twenty yeara veara afterward and a piece of wood tos ton took ahre anre iii ia lava three years and a half after it had bad been ejected at five miles from the crater stones of f immense size rise to the hig hight lit of seven thousand feet and others darkening the air fall one hundred miles distant I 1 thirty one great eruptions of atna N etna ana have occurred within the records of history in an eruption in the year 1693 the city of catania was overturned in a moment and eighteen thousand people perished inthe ruins the crater of etna atna is a quarter quart er of a mile high on a 3 plain three miles across 1 it falls in ahl abl ab out every one hundred haldred years the mouth is li i a ai mile mlle le in diameter and shelves as an inverted cone lined with salts and sulphur the central fiery gulf varies ia in size bize and noises anise arise from it with volumes of smoke dorville descended byrodes byj ropes near the gulf but was annoyed by flame and sulphurous ef lluvia effluvia pompeii was destroyed by showers shower of ashes but herculan eum by hot mud over which six streams of lava have since accumulated they had bad recently been dest destroyed roved by an earthquake and were rebuilding in the barracks of pompeii were wre found the skeletons of two tivo soldiers fastened by chains and in the vaults bf a cou country n house was a perfect cast of abom an an with a child in her arms |