Page:Description of Mount Vesuvius with an account of its various eruptions.pdf/7

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                      there by patches of the darkest hue. The
                      lava was partly directed by the wind towards
                      Ottaiano, on which so thick a shower of ashes,
                      blended with vast pieces of scoriæ, fell, that,
                      had it been of longer continuance, that town
                      would have shared the fate of Pompeii. It
                      took fire in several places; and, had there
                      been much wind, the inhabitants would have
                      been burned in their houses, it being impos-
                      sible for them to stir out. To add to the
                      horror of the scene, incessant volcanic light-
                      ning darted through the black cloud which
                      surrounded them, while the sulphureous smell
                      and heat would scarcely allow them to draw
                      their breath. In this dreadful state they re-
                      mained nearly half an hour. The remaining
                      part of the lava, still red hot and liquid, fell
                      on the top of Vesuvius, and covered its whole
                      cone, together with that of La Somma, and
                      the valley between them, thus forming one
                      complete body of fire, which could not be less
                      than two miles and a half in breadth, and
                      casting a heat to the distance of at least six
                      miles around.
                        The eruption of 1794 is accurately de-
                      scribed by the foregoing writer; but has not
                      an equal degree of interest with the one al-
                      ready cited. We subjoin a few particulars,
                      among which is a circumstance well deserving
                      notice, as it leads to an estimate of the de-
                      gree of heat in volcanoes. Sir William says