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table Forks -should Bind themselves in ourHands, when we come upon mineral Veins,and Beds of Ore, as undoubtedly they do,as soon as brought within the Reach oftheir Effluvia ? Certainly not at all! butthat is not of so great Satisfaction, nordoes it make fb much. to our present Pur-pose ; for though they act thus-far, yet■they do not deserve the Title of Divining-sock, because,-by the single Hazel or ve-getable Wand, though it is attracted, yetwe are notable;to distinguish.by what cor-puscular Effluvia the Attraction is caused.;therefore cannot judge what Mineral isunder, hbr-how deep it is from .the Sur?: Me, nor what' Impediments: are betwixt usand the attracting Body; therefore some-thing nise is required to compleat the Di-vining-rod, and to give us a competentKnowledge; of what we are about. ' TheHazel Fdfk theh is. only the Vehicle onwhich- the Mignet for different Metals is tobe fixed; and the Hazel is, chosen on accountbf : its containing not so many of the fer-'rugenous Particles as other Vegetables do,this being the ionly Reason why it, has the'Preference. <.

As to the different Magnets for the dif-ferent Minerals, artificial ones are com-monly made use of, which, how . to pre-pare, Nature herself dictates and instructsus. For let the Effluvia of any Mineral

be