Credit: ©The Royal Society
    Image number: RS.14938

    Diagram for adjusting a quadrant

    Date
    11 May 1668
    Creator
    Unknown, Artist
    Object type
    Archive reference number
    LBC
    Manuscript page number
    vol2 p246
    Material
    Dimensions
    height (page): 301mm
    width (page): 175mm
    Subject
    Content object
    Description
    A figure from a letter dated 11 May 1668 to Johannes Hevelius, in which Henry Oldenburg communicates Robert Hooke's comments about telescopic sights. The diagram illustrates a method of adjusting a quadrant.

    This is a copy of the letter entered in the Letter Book Original at LBO/2/207, which is copied from EL/O1/66/003.
    Related fellows
    Henry Oldenburg (1612 - 1677, German) , Scientific correspondent
    Johannes Hevelius (1611 - 1687, German/Polish) , Astronomer
    Associated place
    <The World>
       > Europe
          > Poland
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