24 JOURNEY ON THE SEMBRONG RIVER. 



Mount Formosa i? the principal elevation, about 1400 feet 

 above sea level ; it forms a prominent land mark for sailors north 

 east of it ; and distant about one mile is Gunong- Peng-g-aram., 

 about 1150 feet high. From the summit of Fenggaram, Mount 

 Ophir, Blumut, and Pulai are distinctly visible ; seawards the 

 country is flat with much mangrove swamp. 



On the slopes of Formosa and Fenggaram are several coffee 

 estates, under European management. A cart road leads to 

 Pengkalan Fenggaram on the river. 



Geology of the Batu Pahat Hills. — The bed rock is a very 

 hard fine-grained g-ranite, which crops out here and there on the 

 hill side, is overlaid by the usual clays and clay shales. 



There is a little alluvial tin ore in the valley between 

 Formosa and Fenggaram ; this was formerly worked by Chinese, 

 but is now abandoned ; it is of little importance at present. 



HARRY LAKE, 



Johore, Deceniher 22nd, 1892. 



