Lung polyp and concave specula

    Date
    1697
    Creator
    Unknown, Engraver
    Creator - Organisation
    The Royal Society, Publisher
    Object type
    Article identifier
    Material
    Technique
    Subject
    Medical Sciences
    Physics
       > Optics
          > Microscopy
    Content object
    Description
    Two figures to issue 235 of Philosophical Transactions of the Royal Society.

    Fig. 1 Diagram showing the branch like structure of a ‘polypus of the lungs’ voided by a taylor.

    Illustration to Two observations, one about the death of a dog on firing a volley of small shot: the other about the polypus of the lungs, communicated in a letter of Mr. Robert Clarke, to Dr. Martin Lister..., published in Philosophical Transactions of the Royal Society, vol.19, issue 235 (Dec 1697) pp.779-780. The original letter can be found in the Early Letters of the Royal Society, EL/C2/31.

    Fig. 2 Diagram demonstrating Stephen Gray’s concave specula taking the form of a parabolic figure.

    Key: ‘AB is the perimiter, CD the Axis, C the Focus, and D the Vertex, 1,2,3,4,5, the several Points in the Parabola, AFDBG the form of the suspended Line, AHDIB a portions of a Circle, which thought it pass through points ADB, is more from the other Points of the Parabola than the suspended Line.’

    Illustration to A letter from Mr. Stephen Gray, dated Canterbury, Dec. 8.1697. relating some Experiments about making Concave Specula nearly of a Parabolick Figure, published in Philosophical Transactions of the Royal Society, vol.19, issue 235 (Dec 1697) pp.787-790.

    Martin Lister (1639-1712), British physician and naturalist, elected a Fellow of the Royal Society in 1671.

    Stephen Gray (ca.1666-1736) British astronomer, elected a Fellow of the Royal Society in 1733.

    Related fellows
    Stephen Gray (1666 - 1736, British) , Astronomer
    Martin Lister (1639 - 1712, British) , Physician
    Associated place
    <The World>
       > Europe
          > United Kingdom
    Credit
    ©The Royal Society
    Image number
    RS.19058
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