Matches in Harvard for { ?s ?p A treatise of artificial magnets : in which is shewn an easy and expeditious method of making them, superior to the best natural ones, and also, a way of improving the natural ones, and of changing or converting their poles : directions are likewise given for making the mariner's needles in the best form, and for touching them most advantageously, &c. / by J. Michell .... }
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- catalog title "A treatise of artificial magnets : in which is shewn an easy and expeditious method of making them, superior to the best natural ones, and also, a way of improving the natural ones, and of changing or converting their poles : directions are likewise given for making the mariner's needles in the best form, and for touching them most advantageously, &c. / by J. Michell ...".