Credit: ©The Royal Society
    Image number: RS.17614

    Polished lava

    Date
    1776
    Creator
    Pietro Fabris (1738, Italian) , Painter
    Object type
    Library reference
    42888
    Material
    Technique
    Dimensions
    height (plate): 210mm
    width (plate): 385mm
    height (page): 320mm
    width (page): 452mm
    Subject
    Content object
    nature
       > mineral
    Description
    Twelve specimens of polished lava from Mount Vesuvius.

    Plate 49 from Campi Phlegraei: observations on the volcanos of the two Sicilies by William Hamilton. The plate is inscribed 'IL’ in the top left corner.

    Written in the associated description: 'The black and white spots in the lavas are in general cristals such as are represented (P.LIV. n.6 & 7.) Acids do not affect pure lava, but an acid applied to the specimen represented n.6 causes an effervescence, because the white spots are marble calcined and not cristals as in the others [...] The most sensible difference in the lavas of Vesuvius are represented in these twelve specimens.'

    William Hamilton (1730-1803) British diplomat, archaeologist and volcanologist was elected a Fellow of the Royal Society in 1766 on the merit of his volcanic observations. He received the Copley Medal in 1770 for his 'Account of a Journey to Mount Etna'.

    Pietro Fabris (1740-1792) was a British artist who accompanied Hamilton around Mount Etna, Mount Vesuvius, and Lipari islands to document volcanic activities.
    Object history
    This book of hand-coloured plates represents part II of Campi Phlegraei. It complements part I, which consists of letters only. Both were presented to the then President of the Royal Society, Sir John Pringle (1707-1782).
    Associated place
    <The World>
       > Europe
          > Italy
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