[ 3° J 



'Mr. Edens, on the other hand, hath given us a very particular 

 account of what he obferved in going to the top of Teneriff w ; 

 and fo far from feeing fnow or ice (except in a cave) his coat 

 was covered, during the night, with dew, at the very fummit, 

 which, according to Dr. Heberden's computation, is 15,396 feet 

 high, or wants but 148 yards of three miles *. 



Now as it is thus fettled, that the Pic of Teneriff is nearly 

 three miles high, which exceeds by more than a mile the height 

 of the lreezing point on Cotopaxi, fituated under the Equator, it 

 mould feem that there is no material difference between the heat 

 under the Equator and within the Tropics ; for if it is urged, 

 that Teneriff is more furrounded with fea than Cotopaxi, it muft 

 on the other hand be recollected, that this mountain is fituated 

 5 degrees to the Northward of the Tropic, at the fame time 

 that the fummit exceeds the freezing point on Cotopaxi by more 

 than a mile; both which circumftances mould render it colder 

 than the freezing point on Cotopaxi. 



The inference to be drawn from this comparifon feems to be, 

 that, as the heat varies fo little between the Equator and the 

 tropical limits, it may differ as little between the Arctic circle 

 and the Pole. 



Nothing hath been fuppofed to mew more flrongly the wifdom 

 of a beneficent Creator, than that every part of this globe mould 

 (taking the year throughout) have an equal proportion of the 

 Sun's light. 



1023 toifes above the level of the fea, and the height of the mountain 

 above this plain is 1268 toifes, making together 2291 toifes. If 880 

 toifes therefore are deducted from 2291, 141 1 toifes become the height 

 of the freezing point upon this mountain. See Ulloa's Account of S. 

 America. 



w Phil. Tranf. Abr. vol. V. p. 147. Sprat's Hift. R. Soc. 



1 See Hawkefworth's Voyages, vol. II. p. 12. Goats alfo reach the 

 very fummit, which muft be in fearch of food, as they do not bear cold 

 well. 1 



It 



