Credit: ©The Royal Society
    Image number: RS.16178

    Speaking trumpet

    Date
    ca.1687
    Creator
    John Clayton (1657 - 1725, British) , Clergyman
    Object type
    Archive reference number
    Manuscript page number
    p126r
    Material
    Dimensions
    height (page): 151mm
    width (page): 192mm
    Subject
    Description
    Side view of a speaking trumpet from a letter from John Clayton to Robert Boyle of 1687.

    Drawing from the Robert Boyle papers.
    Transcription
    Above: ‘A speaking trumpet 13 foot long.’

    Below: ‘from a to b is a direct cone the orifice of an inch & halfe diameter, of b 16 inches, the lips of b 3 inches [goe –deleted] broad goeing round the whole orifice’.
    Transcribed by the Making Visible project
    Object history
    Appears within ‘An account of Virginia’ by John Clayton, but is unconnected with the main manuscript.

    In a letter from John Clayton to Robert Boyle, 1687: ‘from Huntingdon Shire I sent you a Draught of the Speakeing trumpet wch if you send to his Majestie as you told me you designed I should be glad to hear wt. acceptance it found’ (RB/3/6/36).
    Related fellows
    Robert Boyle (1627 - 1691, British) , Natural philosopher
    Associated place
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          > United Kingdom
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