Credit: © The Royal Society
    Image number: RS.10420
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    The preparation of nitre (saltpetre)

    Date
    1689
    Creator
    Unknown, Engraver
    Object type
    Library reference
    41066
    Material
    Technique
    Dimensions
    height (print): 315mm
    width (print): 195mm
    Subject
    Chemistry
       > Alchemy
    Content object
    Description
    This plate forms part of Johann Rudolf Glauber’s treatise on ‘The Prosperity of Germany’, and illustrates various stages in ‘the Preparation of Salt-petre’ (nitre). The two images at the top show ‘the manner of Boiling Salt-petre, and ... by what means a Lixivium is to be made out of a Nitrous Earth’, according to the methods of another German chemist, Lazarus Ercker. The lower image shows the preparation of the ‘Lixivium’ of saltpetre from horse dung or the leaves of trees.

    Plate facing p.339 in the book The works of the highly experienced and famous chymist, John Rudolph Glauber, containing great variety of choice secrets in medicine and alchymy ... (English translation by Christopher Packe, London, 1689)

    Glauber (ca.1604-1670), an alchemist, chemist and chemical engineer, made several improvements to chemical processes and equipment, including furnaces and devices used in distillation. He published over 40 books in his lifetime, the most significant of which were collated and translated into English by Christopher Packe (a follower of Robert Boyle) to form a posthumous ‘collected works’ edition.
    Associated place
    <The World>
       > Europe
          > Germany
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