A treatise of artificial magnets
Subtitle: 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 changning or converting their poles. Directions are likewise given for making the mariner's needles in the best form, and for touching them most advantageously ...
Edition: 2d ed., corrected and improved.
Publisher: Printed by J. Bentham, and sold by W. and J. Mount ...
Published: 1751
Place of publication: Cambridge
Language: eng
Number of pages: 78
Subjects: Magnetism; Early works to 1800