180 
MR. C. BARRINGTON BROWN AND PROFESSOR J. W. JUDD 
Nampan and Kyauklabin, at about two miles from the latter place, appears to be 
only 90 feet in width. Another similar outcrop is seen before coming to Kyauklabin, 
and the next is crossed beyond that place, dipping south at an angle of 45°. These 
are followed by a few very small bands. 
Fig. 10. 
Descending the mountain to Wapudoung, the tortuous-graded road crosses and 
recrosses a thick limestone band all down the hill, interbanded with gneiss. Where 
this is first met with on the mountain top it appears to dip southwardly at an angle 
of 45°, while half way down it seems to incline to the west at a much lower angle. 
It would appear that this band of limestone, and the gneiss as well, curves sharply 
round from west to north, and becomes almost horizontal in the vicinity of 
Wapudoung, further on continuing with slight undulating dips # in that position 
all over the country to the vicinity of Thebayetkin. On approaching the latter 
place, its surface is covered in places with white marl, derived from its disintegration ; 
while the beds of streams are coated with calcareous tuff. Beyond this, for a quarter 
of a mile to the Irrawaddy river, the rocks are of sandstone. 
In the Sagyin district, 24 miles northward of Mandalay, the crystalline limestone 
forms a line of hills, surrounded by the alluvium of the Irrawaddy river, trending 
north and south. Of these, two are ridge-like, while the third, about one mile to the 
north of them, is formed of a low group. The most southern hill, rising to a height 
of 500 feet, is one mile in length, and has a width of a quarter of a mile at its base. 
This, and the next, slope gently towards the east with the dip of the limestone, but 
very steeply to the west, owing to the jointing of the limestone being at right angles 
to the bedding. 
* The general inclination is at an angle of about 1° to the west. 
