254 Essay, &c. 
the Map, and on most I collected eaplapatorg 
specimens (See the N 
Ac Banjar T noticed in “the piang on the 
shore the following peculiarities 
Firstly—small fragments of very dense Ba- 
saltes, of a blueish color, resembling touchstone: 
* Secondly — pebbles, the basis of which was 
Horublende, marked with numerous white lines, 
variously crossing each other, consisting of de- 
licate lamina of Feldspar, the lustre ot which 
was lost by attrition; in some fragments, hows 
ever, the laminz were extensive and entire, and 
these, superficially viewed, resembled granite: 
+ Thirdly —a species of Sandstone which is 
pecoliar to chis part of the Island: rhe color is 
greenish, the grain very fine, and, in most of 
the fragments, a determinate form, consisting of 
four unequal sides, resembling exteriorly the 
‘common Basalces of this nei: :hbourhood, could 
be observed. Many fragments are cuboid, others 
rhomboid, &c. I am led to suppose chat exten- 
sive beds of this stone enter into the composition 
ofthe hills in a western direction from hence: in 
the eastern ranges l have hitherto not observe 
ed ic 
: Fourehly— rounded fragments of Agate, Jas- 
per, Hornstone, Porphyry and other ices 
stones. 
In ascending the hill in this part, which rises 
nearly precipitously a few hundred yards from the 
shore, 1 found again numerous fragments of the: 
a E stone just mentioned: in che rivulets- 
* Exp! Cat. NG ae 
i Exp. Cat, No: i7. 
