98 GEOLOGICAL FEATURES OF SINGAPORE, 
At the sea level I observed a hard str ;tum having a sienitic as- 
pect. At the east point of this island numerous small veins*, of 
quartz occur in the sandstone, and occasionally well delined quartz 
crystals. 
The stratification is as follows—passing upwards. 
* 
, No. 1. White sandstone, 16 feet. 
„ 2. Reddish and whitish, 17 feet. 
,, 3. Purplish and very argillaceous, 7 feet. 
„ 4. Yellowish red, 40 feet. 
This island was decked with a tree named by the Malays Susupj 
having a bright scarlet flower, 
BLAKANG MATI. 
This island is about 2\ miles long with a maximum height of 
about 308 feet. The name implies a Dead back” owing to the 
steril soil on its southern face. 
The strata here shew themselves prominently some way up the 
hill. (tig. 4.) I did not ascend, being obliged to return before 
dark. 
PULO TOKOXG. 
This small island is from 15 to 20 feet high. The strata of 
sandstone incline at an angle of about 60, towards the North or 
N. easterly. 
They are whitish, yellowish, and green, 4 to 6 feel thick, with 
thin layers betwixt them of reddish and yellowish sandstone. There, 
are several small caves in the lower part of the face of the rocks. 
The strata have been much disturbed. 
PULO BUAII SAGA. 
So called from its fancied likeness to the Indian pea. The sand¬ 
stone strata are here vertical , their line of direction being about 
N\Y. and SR. But at the east end of the Island there is a slight 
inclination, the inclination being to the NE. 
PULO UBI. 
I found here a qmuUese schist, 
