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 To which are added, explanatory notes by the author, hitherto unpublished.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 To which are added, explanatory notes by the author, hitherto unpublished.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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![not léave Portici till about twelve of the clock, when the lava had reached as far as (4. in Plate I.)—I obferved, in my way to Naples, which was in lefs than two hours after I had left the mountain, that the lava had actually covered three miles of the very road through which we had retreated. It is aftonifhing that it fhould have run: fo faft',; as I have fince feen, that the river of lava, in the Atrio di Cavallo, was fixty and feventy feet deep, and in. fome places near two miles broad. When his Sicilian Majefty quitted Portici, the noife was greatly incréaféd ; arid the concuffion of the air from the explofions was fo violent, that, in the King’s palace, doors and win- dows were forced open, and evén one door there, which was locked, was never- thelefs burft open. At Naples, the fame night, many windows and doors flew open; in my houfe; which is not on the fide of the town next Vefuvius, I tried the ex- perndert of unbolting my windows [7], t 7] os windows at Naplés open like icing doors. when](https://iiif.wellcomecollection.org/image/b32996676_0037.jp2/full/800%2C/0/default.jpg)
