Jacob's rod : a translation from the French of a rare and curious work, A.D. 1693, on the art of finding springs, mines and minerals by means of the hazel rod / To which is appended researches, with proofs of the existence of a more certain and far higher faculty, with clear and ample instructions for using it.
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Jacob's rod : a translation from the French of a rare and curious work, A.D. 1693, on the art of finding springs, mines and minerals by means of the hazel rod / To which is appended researches, with proofs of the existence of a more certain and far higher faculty, with clear and ample instructions for using it. Credit: Wellcome Collection. Public Domain Mark