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% E M ARKS 



O N 



THE 



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WINDS, 



Having pailed the tropic of Cancer again, we found the wind 

 l>ecame more Eailerly, viz, E. N. E. and even fometimes E. by 

 N. Half E. 5 till, in 27° or 28" North latitude, we again met with 



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the variable winds. 



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From this circumflantial account, the following inferences may 

 hQ drawn. 



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Firfl, The trade-winds extend fometimes beyond the tropics into 

 the temperate zones, efpecially when the fun is in the fame hemi- 

 fphere ; and the extent of the trade- winds within the tropics, feems 

 to be proportionate to the fun's diflance in the oppofite hemifphere. 



Se fondly J The trade- winds in the South- Sea, are fometimes in- 

 terrupted by calms and contraiy Wefterly winds ; and in particular, 



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rains and thunder-ilorms are not uncommon at thefe changes. 



'thirdly. The trade-winds 



kewife fometimes interrupted at 



the approach of land, efpecially if it be of confiderable height. 

 Fourthly, At the intervals, where ovi& wind leaves off and the 



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ther fets 



commonly calms 



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and 



feldom rains, are 



be 



met with 



It has hitherto l3een allowed, tliat, in the fpace within the tro- 

 pics in large oceans, the regular winds reign, which come from 



the Eaft : and the caufe of this 



thought to be the fun, which 



being vertical, or nearly fo, within the tropics at noon, rarefies the 



air, as his effed is then mofl powerful : but, as the fun is every 



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moment 



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