150 OBSERVATIONS ON THE GEOLOGY OF THE 



frontier on the east, while the lesser ranges on the Tavoy side could be 

 easily traced. 



From the view here obtained, I feel disposed to allow forty miles 

 at the least for the breadth of the whole space, in this latitude, occupied 

 by hills. The ranges are as nearly as may be parallel to each other. 



In my overland route to Ye, the surface was rarely found to exhibit 

 any other than the granite formation — ^quartz was occasionally abundant. 



' At En-bieu, near Kaling Aung, on the left of the road, and in the 

 middle of a circular level spot in the jungle, is a curious hot well. It was 

 found to be quite marshy all around, although it was visited in the hottest 

 period of the year. It was not without difficulty that it could be reached 

 near enough for examination — both from the heat under foot and the 

 treacherous nature of the soil. 



The well is about forty feet in diameter. By throwing a bottle attach- 

 ed to a rope, allowing it to fill and grow heated, and pulling it suddenly 

 back, the temperature was found to be 104° of Fahrenheit. But 4' more 

 may be allowed for accidents. Not a rock or pebble could be seen near 

 the well. A bleak on the surface, angular, sharp and disintegrated, scrag- 

 gy granitic rock lies a short distance to the northward of it. 



The water has not been examined by tests. From this hot fountain 

 down to the stockaded town of Yi, in the small province of that name, 

 the country falls rapidly (to the south.) A few detached hills are per- 

 ceived at intervals, and on the east of the route a low granitic range 

 stretches northward — resting on the south at Tavoy Point, and to the north 

 in Martahan Province. 



The 



