TO THE COURT OF AYA. 
23 
from this place had been brought to us a great 
part of the fossil bones which I shall presently 
mention. The hill of Man-lan is higher than any 
in its vicinity, and is probably about four hundred 
feet above the level of the Irawadi. 
We landed yesterday forenoon, in order to af¬ 
ford every facility for getting the steam-vessel off 
the bank, and pitched temporary tents on the ri¬ 
ver-side, at a little valley about a mile below He- 
nangyun, and at a place called Nyaong-h’la, or 
the “ handsome fig-tree,” where there is an old 
temple on the model of those of Pugan. Dr. 
Wallich and myself this morning visited the Pe¬ 
troleum Wells, and examined several of them. 
We took the temperature of two of them care¬ 
fully with a good thermometer : the thermometer 
being immersed in a pot of oil, just drawn from 
one of these, which was one hundred and thirty 
royal cubits, or two hundred and seven English 
feet in depth, rose to eighty-eight degrees. In 
the shade the temperature at the same time was 
sixty-nine degrees. In a pot of oil drawn from 
another well of which the liquid was less mixed 
with the water, and which was one hundred and 
forty royal cubits, or two hundred and twenty-two 
feet eight inches deep, the heat indicated by the 
thermometer was ninety degrees. 
In going over the ground, we observed several 
old wells altogether abandoned. The natives in¬ 
formed us that, in digging new ones, they came at 
