PHYSICAL FEATURES. 31 



surrounding low country and runs northwards in a direction i8° 

 W. of N., E. of S. At Singu, where these hills come up to the 

 Irrawaddi, there is a considerable break in them, but on the other side 

 of the river they continue northwards in a direction which is now 

 slightly turned to io° W. of N., E. of S. In the Myingyan district 

 the length of the hills is about sixteen miles, and they are locally 

 known as the Singu hills, but on the other side of the river, in the 

 Pakokku district, they are known as the Tangyi hills, from the well- 

 known and conspicuous Tangyi pagoda, which is built on one of the 

 highest points of the range. Of these Tangyi hills I have examined a 

 length of twenty-four miles, but I did not reach nor see the end of 

 them, and so I cannot say how far they extend towards the north. 

 In direction the Singu-Tangyi hills are parallel to, but not in the 

 same line as, the Yenangyaung hills, and an examination of the 

 surrounding parts of the Myingyan district shows that the range is 

 one of a number of roughly parallel ranges of hills, which are 

 formed of rocks bent in approximately parallel anticlinal folds. The 

 Yenangyaung hills form one of these parallel ranges but the 

 Yenangyaung anticline and hills sink down into the plain and 

 become covered up by recent deposits in the country to the south- 

 east of Sale, and the Singu-Tangyi range begins at Kanthit-kon, which 

 is a considerable distance east of the northern end of the Yenang- 

 yaung hills. Other roughly parallel ranges of hills are the Pagan 

 hills and the Gwegyo hills. From their southern end the Singu- 

 Tangyi hills rise rapidly in height towards the north as far as 

 Singu, where the Irrawaddi breaks through. But on the other side 

 of the river the hills continue, still rising in height, until at Yenangyat 

 and Seikkwa they reach a maximum of nearly goo feet above the 

 Irrawaddi. From here northwards they gradually sink down, at 

 first slowly and then more rapidly, until, near Myigyaundwe 

 (Lat. 2i° 18' N., Long. 94° 47' E.), which is the most north- 

 erly point I have visited, they are much lower than near 

 Yenangyat, and looking from this place towards the north one sees 



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