Credit: ©The Royal Society
    Image number: RS.19955

    Unknown growth

    Date
    1768
    Creator
    Adam Wolfgang Winterschmidt (1733 - 1796, German) , Engraver
    After
    Martin Frobene Ledermuller (1719 - 1769, German) , Naturalist
    Object type
    Library reference
    48660
    Material
    Technique
    Dimensions
    height (print): 245mm
    width (print): 195mm
    Subject
    Physics
       > Optics
          > Microscopy
    Biology
       > Natural history
    Description
    Study of a growth found in the gall bladder of a slaughtered lamb, showing it whole at natural size (figure 1), quartered at natural size (fig. 2), with two details of the inner substance, viewed under magnification (fig. 3, 4).

    Inscribed above: ‘TAB: XXXIII.’

    The accompanying text is headed: ‘Une boule legere, ronde & d'un brun tres obscur’ [‘A light, round ball of a very dark brown’].

    The author writes by way of physical description: ‘Pour ce qui est de la figure exterieure de cette boule, elle etoit presque totalement ronde, plus unie que raboteuse. Sa Couleur brun obscure; sa pesanteur asses modique & a peine d'une once; quoiqu elle fut asses grande, ainsi que vous l'aprend la fig. 1. de la Table XXXIII [‘As for the external figure of this ball, it was almost completely round, more smooth than rugged. It was dark brown in colour, of fairly modest weight, barely an ounce, despite being quite large, as can be seen from Fig. 1. of Table XXXIII’.]

    Plate 33 from Amusement microscopique, tant pour l'esprit que pour les yeux, contenant... estampes... d'apres nature...by Martin Frobene Ledermuller, plates volume (Adam Wolfgang Winterschmidt, Nuremburg, 1768).

    Martin Frobene [Frobenius] Ledermuller (1719-1769) German naturalist was employed in various capacities as a notary, turning to microscope studies after an illness induced temporary deafness.
    Associated place
    <The World>
       > Europe
          > Germany
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