5703. ) on borax. 2¢ 
of Marmé, there is another valley called Taprz, in 
which likewise borax is dug out. There are also ponds 
where borax is dug out, in another plain called Croga ; 
but of this I cozld not learn the exact situation. 
As the borax evaporates very quickly, the natives, 
to prevent any such lofs before they can sell it, 
mix earth with it.thinly coated with butter. 
In another territory sixteen days distant from, and 
to the north of Nepaul a great number of arsenic 
mines are to be found. Mines of brimstone also are to 
be met with in many parts of Thibet ; andbesides, 
gold and silver mines of a richer and purer quality 
than even the Peruvian. All this is what I could 
collect from the conversation I] had with the man 
sent to me by Bahadur Sab. 
To that intelligence I can add that ofa drug cal- 
led by the European medical world, Terra Faponica; 
by the natives of Indostan Kat: but I thali not de- 
tain you on its account, as I know it has been fully des: 
cribed and publifhed in England by Dr Kier. Some 
years ago I obtained the information’ respecting it : 
and I sent to one of our mifsionaries at Bettiah an or- 
der to send me down the seeds, the wood, anda small 
tree of the Kat, which I gave to the learnea Dr 
Hunter, then stationed at Patna, who communicated ° 
the whole discovery to his friend Dr Kier then re- 
siding also i Patna, from whom I am glad to 
hear the world has received thie information. 
Should you with to have some information con- 
cerning the animal that gives the genuine mutk, I 
can very easily satisfy your curiosity by sending 
you the ikiu of one of them ; as it aj pears to me not 
VOL. xvii, D —F 
