XXll ADVERTISEMENT. 



which prevented his penetrating beyond the 71ft 

 degree of South Latitude, and refembled a chain 

 of mountains, rifing one above another, and lofing 

 themfelves in the clouds. " There never were 

 *' feen, in my opinion, mountains of ice fuch as 

 ** ihefe, in the Seas of Greenland ; at lead 1 have 

 *' never read or heard of the like : no comparifon, 

 *' therefore, can be flared between the ices of the 

 *' North, and thofe of the Latitudes which I ann 

 ** mentioning." {Cook^s Voyage?, January, 1774.) 



This prodigious elevation of ices, of which Cook 

 faw but one extremity, may, therefore, be a coun- 

 terpoife to the elevation of territory on the North 

 Pole, eftabliflied by the learned labours of the 

 Academicians themfelves. But though the frozen 

 Seas of the South Pole may repel the operations of 

 Geometry, we fhall fee prefently, by two authentic 

 obfervations, that the fluid Seas which furround it, 

 are more elevated than thofe at the Equator, and 

 are at the fame level with thofe of the North Pole. 



Let us now proceed to verify the elongation of 

 the Poles, by the very method which has been 

 made to ferve for a demonftration of their being 

 flattened. This lad hypothefis has acquired a new 

 degree of error, from it's application to the diftri- 

 bution of land and water upon the Globe ; that of 

 the elongation of tlie PoleSj is going to acquire 



new 



