The nevve, attractive [electronic resource] : shewing the nature, propertie, and manifold vertues of the loadstone, with the declination of the needle, touched therewith, vnder the plaine of the horizon. Found out and discouered by Ro: Norman. With the application thereof, for finding the true variation of the compas: as also diuers profitable rules and instruments, for the more perfection and exactnes in the art of nauigation. By maister W: Burrowes.