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.
Jacob's rod is an 1870 English translation by Thomas Welton of a 1693 French treatise on water-divining with the hazel rod, published by the translator in London for readers interested in occult and dowsing practice. Its engravings show a costumed man in four panels labelled A to D, demonstrating rod-holding postures against a stippled landscape with ground-level details, a useful reference for designers drawing period figures in sequence.
