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  • Processing of iron. Engraving.
  • Processing of mercury. Etching.
  • Processing of bismuth. Etching.
  • Processing of alum. Etching, 1769.
  • Processing of bismuth. Etching by Bénard.
  • Processing language, left brain hemisphere (sagittal view)
  • Processing of iron. Etching by Bénard after L.J. Goussier.
  • Processing of sulphur. Etching by Bénard after L.J. Goussier.
  • Processing of copper. Etching by Bénard after L.J. Goussier.
  • Processing of alum. Etching by Bénard after L. J. Goussier.