258 Essay, Cc. 
with the Ocean) in a state of cultivation: the 
soil is a mixture of clay and sand, and produces 
annually a plentiful crop of rice: Cacoa-nut 
trees are very abundant. The river Adirojo 
flows along the Western foot of the hill men- 
tioned ; at its banks are exposed in many points, 
piles of Sandstone of a texture more or less 
compact, and often of a stratified disposition, 
resembling the stone called padas in many parts 
*of the Island, and belonging to the class of 
volcanic Tufa: on the Eastern banks of the 
giver it is in conjunction with the rock of which 
the hill Bedagangan is composed: this has the 
same direction as the ranges of Karang-bollong, 
extending through the Southern parts of the 
plain of Aya, directly North and South, without 
‘any connection with the central ranges; its base 
in the parts l examined, is composed of caver- 
‘nous lava, of submarine origin, and of constitu- 
tion very similar to that found at the point 
Ujung-agung on Nuso-brambang. In con.f 
tact with this I noticed Pudding-stone of the 
same kind as that of Karang-bollong. This 
hill terminates precipitously at the ocean, and 
“contains here a fissure which is inhabited by 
the Hirundo esculenta. Near the discharge of 
-the river Adirojo a large tract consists again 
-of cavernous lava, compact in its fracture, but 
highly rugged and irregular in the external ap- 
pearance. Here extensive groupes project at 
low water, presenting rocks of a dark color, 
“cellular, and excavared in great variety of form§ 
CO Exp. Cat, No. 25. : vete sadi i. 
4 Exp. Cat. No. 26, 
$ Exp. Cat. No. 27, 
