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V . A New and Exadt T A B L E, Colleded from feve- 
ral Obfervations, • taken in four Voyages to 
Jon's Bay in North America^ from London : Shew- 
ing the Variation of the Magnetic al Needle, or 
Sea Compafs, in the Path-way to the faid Bay^ 
according to the feveral Latitudes and Longi^ 
tudes, from the Year 172-1, to 17x5. By Mr. 
Chrijiopher Middleton. - - 
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