STBEAM TIN DEPOSITS OE PEEAtf. I'M 



I have gone through most of the points connected with the 

 geology of stream tin, especially as it refers to the State of Perak. 

 You will doubtless be inclined to ask a question which I have not 

 touched upon at all. This is, how the occurrence of tin ore in 

 such quantities in days or in granite is accounted for. This must 

 form the subject of another lecture, for the story is a long one. It 

 cannot be accounted for in as satisfactory a manner as the occur- 

 rence of tin in drift, but the matter is of the highest interest, 

 as you will find, connected with the most attractive field of geological 

 research. 



Let me say, in conclusion, that the connexion of stream tin 

 with paleozoic rocks, limestone and granite is a most cheering 

 part for the future mining prospect of this State. Such rocks are 

 to be found everywhere : the valleys of the rivers are full of them. 

 This makes me think that the tin deposits of the Malay Penin- 

 sula are the richest in the world, and that we are as yet only on 

 the threshold of our discoveries. 



