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The new attractiue. Containing a short discourse of the magnes or loadstone: and amongst other his vertues, of a new discouered secret and subtill propertie, concerning the declining of the needle, touched therewith vnder the plaine of the horizon. Now first found out by Robert Norman hydrographer. Heerevnto are annexed certaine necessary rules for the arte of nauigation: by the same R.N.
The new attractiue. Containing a short discourse of the magnes or loadstone: and amongst other his vertues, of a new discouered secret and subtill propertie, concerning the declining of the needle, touched therewith vnder the plaine of the horizon. Now first found out by Robert Norman hydrographer. Heerevnto are annexed certaine necessary rules for the arte of nauigation: by the same R.N.