Appendix A. 



equatorial in the group of the Nfumbiro (properly Muhawura — " far seen " ) 

 and Virunga Mountains, although these are far less elevated than Ruwenzori. (-'■') 



NOTES. 



(') This is tlie seventh chapter of Book IV. After imlicuting tlie geographical positions 

 of the two lakes sources of the Xile, it would naturally occur to Ptoleniv to gire that of tlie 

 more southern snowy mountains. But he does not do so, and onlv speaks of them incidentally 

 in chapter 8 of the same book, where there is no further reference to the Egyptian river. 



(-) CooLEY, op. cil., pp. 77-78. 



(•') H. KlEPKRT, Lehrhvch der alien Georirajihif, p. 210, note 2. 



(^) Gcogi: Mil. 1892, Litteratiir-Bcricht, No. 40. 



(') Meteor. B.iok I, chap. 13. 



C) Hint'iire de la Geographie, pp. 109 ami 121 ; Le Nord dc VAfriqv^ dans 

 VAiiliiinite grecqiie et romaine, pp. 21 and 486. 



{/) M.ilFATTI, Scritii geografici ed elnografici, p. 454. 



(*) See in this connection the iniportant considerations developed bv Ptolemy in 

 chaps. 4 and 6 of Book I. 



(') The defects of this method, and the serious errors committed by Ptolemy in 

 recasting and expanding the work of Marinus of Tyre, are excellently exhibited, with his usual 

 clearness and shrewdness, by VlvlEN DE Saint-Martix {Hiittoire de la Oeographii; 

 pp. 200 and 201). On Ptolemy's geographic system specially valuable are the pages 

 devoted to this subject liy BrxBUEY in liis Histori/ of Aiicient Geographg (2nd edition. 

 Vol. II, pp. 546-579). 



("*) Very numerous instances of such numerical reductions arc found in tlie Geogrnphit. 

 and especially in Book I. 



(") (30'5'x6°)x| = 30^4l5; 30° 5'-30°, 419=0°,085. 



('-) Plol. Geogr., Book IV, chap. 7. Here is the confluence of the rivers that flow from 

 the southern lakes ; long. 60°, lat. 2° N. 



(*■') Such is also the opinion of not a few modern getigraphers, amongst whom I have 

 pleasure in mentioning Dr. Fklvx BARLTorx in one of his learned dissertations published in 

 1874. under the title, Doctrhifi Ptolciitaei ah injuria reveal iorinn viiidii-ata^ p. 31. 



298 



