Is HISTORY OF SANTUBONG, SARAWAK. 
opinion of the Malay scribe who 40 years ago committed this 
story to writing. 
We may mention that a variant of the Pegu incident is 
that the strangers stayed in Santubong for some time working 
as slaves. 
Before dealing with the fauna and flora it ail be well to 
mention the more obvious features of geographical and geological 
interest. As will be seen from the accompanying map, Santu- 
bong is one of many islands lying in the delta of the Sarawak 
river: these are mainly extensive mangrove swamps with 
cecasionally a rocky prominence. The Northern half of the 
island is occupied entirely by the mountain mass: the Southern 
half is of mangrove swamp. It appears therefore that at 
no very distant geological period, an open sea stretched 
over the area now occupied by these swampy islands: in 
that sea the mountain of Santubong appeared as a solitary 
island whilst dotted about here and there were a few BOS 
islets. 
The mountain is a narrow range, five miles long, of uptilted 
sandstone and shales which dip rather steeply towards the 
North East, and judging from the pebbles in the beds of the 
streams there are evidently occurences of igneous rocks of grani- 
tic nature. At Sajinjang, just across the river, the uptilting 
factor is clearly observable: this hill consists of igneous rock, a 
porphyry, with an altered shale which is very hard and eryst- 
alline and in places where the stratification of the shale is in 
evidence it is very much contorted and dislocated often being 
thrown up on edge. 
The Santubong sandstone contains iron pyrites in consider- 
able quantities and there is a small occurrence of galena at the 
south end. 
Traces of gold are also found in the soil at the base of the 
mountain. © ~ 
In the following account of the animal and plant life of 
Santubong we shall make no attempt to give lists but will 
confine our remarks to a few points of special interest and to 
the relationship between the life on this island and that of the 
adjacent mountain, Matang, on the mainland. 
Jour. Straits Branch 
