PXPLANATION OF THE PLATES, 



XXXVll 



fhould, likewife, be of greater extent than an arch of a 

 circle : now, it cannot be of greater extent, but, on the 

 fuppofition of it's being more protuberant, and circum- 

 fcribed round this arch ; the polar curve, of confequenccj 

 forms a lengthened ellipfis, 



I here prefent a figure of the Globe, which I have got 

 engraved, in order to render the miftake of our Aftronomers 

 perceptible to every eye. 



ARCTIC POLE. 



X 



Polar ArcticXcircle 



Tropic of Èancer/ 



E(][uator <j ""**'.., 



Tropic of capricora 

 PolarAntarctic-circle 



ANTARCTIC POLE. 



LetA'be the unknown arch of the Meridian compre- 

 hended above the arclic polar circle ABC, and let D E F 

 be the arch of the fame Meridian comprehended betweenj. 



c ^ the 



