Observations on Mount Vesuvius, Mount Etna, and other volcanos: in a series of letters, addressed to the Royal Society / from the Honourable Sir W. Hamilton ... To which are added, explanatory notes by the author, hitherto unpublished.
- William Hamilton
- Date:
- 1772
Licence: Public Domain Mark
Credit: Observations on Mount Vesuvius, Mount Etna, and other volcanos: in a series of letters, addressed to the Royal Society / from the Honourable Sir W. Hamilton ... To which are added, explanatory notes by the author, hitherto unpublished. Source: Wellcome Collection.
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![Saturday 24th, the lava ceafed running 5 the extent of the lava, from the fpot.C (Plate I.), where I faw it break out, to its extremity F, where it furrounded the cha- pel of Saint Vito, is above fix miles, In the Atrio di Cavallo, and in a deep valley that lies between Vefuvius (1.) and the hermitage (3.), the lava is in fome places near. two miles broad, and in moft places from fixty to feventy feet deep; at (4.), the lava ran down a hollow way, called Foffa grande, made by the currents of rain waters it is not, lefs than two hundred feet deep, and a hundred broad; yet the lava in one place has filled it up. I could not have. believed that, fo - ‘great a quantity of | matter could have been thrown out in fo fhort a time, if I had not fince examined the whole: courfe of the lava myfelf. This, ereat compact body: will certainly retain fome heat many months [/]; at this time, [7] his conjecture has proved true; for, even in the month of April 1771, I:again thruft fticks into fome crevices of this lava, and they immediately took fire. much](https://iiif.wellcomecollection.org/image/b32996676_0044.jp2/full/800%2C/0/default.jpg)
