202 ON THE ANCIENT GEOGRAPHY 
POSTSCRIPT. 
Since the above was printed, I had an opportunity of sub- 
mitting it to Dr Francis Bucuanan, 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 
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 Bucuanan’s information, however, I cannot doubt that it 
is the Sutledge, or, more properly, Satadru (Zaradrus of Pro-. 
Lemy,) which rising from the lake Manas Saroer, crosses the 
Snowy Chain, and rolls through the Punjaub into the Indus. 
Dr Bucuanan is also of opinion, though it is otherwise repre- 
sented by Mr Arrowsmitu, that the Gogra rises from a lake 
near the Manas Saroer, and crosses the Himalaya. 
Dr Bucnanan 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 Protemy. 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 
Protemy has placed his bend of the Imaus; and contains on 
its opposite sides the sources of the Barrumpooter (properly 
Bramapoutra,) 
