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

Förlag	År	Ort	Om boken	ISBN
Printed by J. Bentham ..., and sold by W. & J. Mount & T. Page ..., J. & P. Knapton ..., C. Bathurst ..., London; W. Thurlbourn ..., J. Merrill in Cambridge; J. Hildyard at York; and J. Fletcher at Oxford	1750	Storbritannien, Cambridge	[2], 82 sidor., [1] folded leaf of plates : ill.
printed by J. Bentham; and sold by W. & J. Mount & T. Page, J. & P. Knapton, C. Bathurst, London; W. Thurlbourn, and J. Merrill, in Cambridge; J. Hildyard at York, and J. Fletcher at Oxford	1750	England, Cambridge	[2],82p.,plate 8⁰.