THE SOURCE OF THE NILE. 59 



Babylon, or Cairo, as it is now called, is fixed by the Ca~ 

 Efh or Amnis Trajanus palling through it. Ptolemy * fays 

 fo, and Dr Shaw fays that Geeza was oppollte to Cairo, or in? 

 a line eait and welt from it, and is the ancient Memphis. 



Now, if Babylon is lat. 30 , and fo is Geeza, they may be 

 oppofite to one another in a line of ealt and weft. But if 

 the latitude of Memphis is 29 50', it cannot be at Geeza, 

 which is oppofite to Babylon, but ten miles farther fouth, 

 m which cafe it cannot be oppofite to Babylon or Cairo. 

 Again, if the point of the Delta be in lat. 30 , Babylon, or 

 Cairo, 30 , and Ceeza be 30 , then the point of the Delta 

 cannot be ten miles from Cairo or Babylon, or ten miles, 

 from Geeza.. 



It is ten miles from Geeza, and ten miles fronxBabylon,. 

 or Cairo, and therefore the diltances do not agree as Dr 

 Shaw fays they do ; nor can the point of the Delta, as he 

 fays, be a permanent boundary confidently with his own 

 figures and thofe of Ptolemy, but it inufl have been wafhed 

 away, or gone io' northward ; for Babylon, as he fays, is 

 a certain boundary fixed by the Amnis Trajanus, and, fuppo- 

 fmg the Delta had been a fixed boundary, and in lat. 30 , 

 then the diitance of fifteen miles would juit have made up 

 the fpace that Pliny fays was between that point and Mem- 

 phis, if we fuppofe that great city was at Mctrahenny. 



I shall fay nothing as to his next argument in relation 

 to the diitance of Geeza from the Pyramids ; becaufe, ma- 



H 2 kin 



or 



o 



: Ptol. Geogrnph. lib. iv. cap. c. 



