VOL. XV.jJiAJ PHILOSOPHICAL TBANSACTIONS. 233 



needle tended to the upper end of the iron, and the south point to the lower 

 end, very strongly. — In lat. 9° 42' north, and meridian distance from the Lizard 

 g° 32' west, the south point of the needle strongly tended to the lower end of 

 the iron, but the north point did not so strongly tend to the upper end as before. 

 — Lat. 4° 33' north, and meridian distance 5° J 8' west, from the Lizard, the- 

 north point of the needle began to decline from the upper end of the iron, and 

 the south point to incline more strongly to the lower end. — Lat. 52' south, and 

 meridian distance 1 1° 52' west, from the Lizard, the north point of the needle 

 neither tended to the upper end of the iron nor the lower end, but the south 

 point still inclined to the lower end, though not so strongly. — Lat. 5° 17' south, 

 and meridian distance 1 5° 9' west, from the Lizard, the south point of the 

 needle would turn to the lower end of the fron, about 2 points, but by removing 

 the iron any further, it would fly away from it, and tend to the poles again ; but 

 it would not tend to the upper end at all, neither would the north point incline 

 to either; but when the iron lay horizontal, and the ends of the iron made to 

 respect the poles of the world, the north point of the needle would turn to the 

 80uth end of the iron, and contrarily the south point of the needle would turn 

 to the north end of the iron, and alter its respect to the poles 5 or 6 points, 

 and no further; but holding the iron perpendicular, and its middle to the 

 needle, it would still respect the poles. — Lat. 8° 17' south, and meridian distance 

 from the Lizard 1 7° 35' west, the north point of the needle would not respect 

 the upper end of the iron, but rather fly from it; but the south point would 

 still somewhat respect the lower end, and alter its true position about 2 points : 

 but laying the iron aslope over the compass, so that the upper end was towards 

 the south pole, and the lower end to the north, then the north point would 

 respect the lower end and follow it ; but if you point the upper end to the 

 north, and the lower end to the south, the north point will forsake it. But 

 laying it horizontal, it would act as in the foregoing observations. — Lat. 15° 

 «outh, and 20° west, from the Lizard, the south point of the needle began to 

 respect the upper end of the iron, and the north point the lower end, and fo^ 

 lowed it about 1 point ; but laying the iron horizontal, the north point respected 

 the south end of the iron, and contrary wise, &c. — Lat. 20° 20' south, and 19° 

 20' west, from the Lizard, the south point of the needle respected the upper 

 end of the iron, and the north point the lower end pretty strongly, and fol- 

 lowed it 3 or 4 points ; but laying it horizontal, it would act as before. — Lat. 

 29° 25' and 13° lO' west, from the meridian of the Lizard, the south point of 

 the needle respected the upper end of the iron, and the north point the lowqr 

 end strongly. 



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