Credit: ©The Royal Society
    Image number: RS.16788

    Plan of fortification

    Date
    17th century
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    Manuscript page number
    f86 p291
    Material
    Dimensions
    height (page): 192mm
    width (page): 296mm
    Subject
    Content object
    Description
    This plan of a fortification was sent from Edward Southwell to Robert Southwell. The accompanying text discusses the general rule to fortify the exterior angles of any polygon. It is included amongst the papers collected by Robert Southwell.
    Transcription
    Part of an Hexagonall Fort wherein the angle at the Center is 60d. & the angle at the figure 120d.

    On back: From Edward Southwell
    Transcribed by the Making Visible project
    Object history
    This manuscript was sold at Sotheby's in June 1893 (Phillips sale) and acquired by the Royal Society from a purchaser of that lot. Some of the material is signed by Robin Bacon, who was also Robert Boyle's scribe (see William Poole, 'Sir Robert Southwell's Dialogue on Thomas Burnet's Theory of the Earth: "C & S Discourse of Mr Burnett's Theory of the Earth" (1684): Contexts and an Edition', The Seventeenth Century, 23 (2008), 72-104).
    Related fellows
    Robert Southwell (1635 - 1702, British) , Diplomat
    Edward Southwell (1671 - 1730, British) , Politician
    Associated place
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