202 ON THE ANCIENT GEOGRAPHY 



POSTSCRIPT. 



Since the above was printed, I had an opportunity of sub- 

 mitting it to Dr Francis Buchanan, whose extensive re- 

 searches into the history and geography of India are already 

 well known to the public, and will, we are happy to learn, ap- 

 pear in future publications. A long residence in Nepaul af- 

 forded him peculiar opportunities of collecting information re- 

 specting the countries bordering on the northern frontier of In- 

 dia. I was gratified to find, that he entirely concurred in the 

 general views contained in this essay, and even attached less 

 importance than I myself had done, to some of the objections 

 which may be made to them. He was so obliging as to com- 

 municate the following additional and corrective information 



S3 



on several important topics. 



I have stated my suspicion, that the river reported to the 

 Chinese Lamas as the Ganges, was in reality the Indus. From 

 Dr Buchanan's information, however, I cannot doubt that it 

 is the Sutledge, or, more properly, Satadru (Zaradrus of Pto- 

 lemy,) which rising from the lake Manas Saroer, crosses the 

 Snowy Chain, and rolls through the Punjaub into the Indus. 

 Dr Buchanan is also of opinion, though it is otherwise repre- 

 sented by Mr Arrowsmith, that the Gogra rises from a lake 

 near the Manas Saroer, and crosses the Himalaya. 



Dr Buchanan is convinced, from positive information, of 

 the existence of the Chain of Mountains separating Great from 

 Little Thibet, which I have supposed to be the Northern 

 Imaus of Ptolemy. It appears in the most recent map of Mr 

 Arrowsmith, under the name of Mount Caillas, at precisely 

 the same distance east from the source of the Ganges, that 

 Ptolemy has placed his bend of the Imaus ; and contains on 

 its opposite sides the sources of the Barrumpooter (properly 



Bramapoutra,) 



