282 Essay, Ec. 
Basaltes, and then almost insensiby filtrates 
into the earth. During the rainy season, when 
the water is increased by a strong afflux from 
the hills, a portion still follows the original bed 
of the rivulet. On the site of the village 
Jampang I observed a moderate excavation: 
it is deserted, andthe remaining inhabitants have 
fixed themselves at Kassiran a village near ihe 
roa.i leading from Batur towards Kadu, 
Near the southern diclivities of the mountain 
Pakerman, the mountain Nagassari is situated, 
Str’ tehing considerably to the South, and still 
further, in this derection, inclining gradually 
to the eastward, the mountain Wismo. The 
extent and elevation of the latrer is more con- 
siderable than that of the Pakerman, apad 
and che others of this range, all anited at the 
base, and forming an assemblage, possessing 
separately almost the same degree of elevation: 
Their external appearance is likewise similar, 
they constitute somewhat extended ridges and 
the sides are excavated by deep ravines. 
In various excursions through the declivities 
of the hills of Prarangen, Pakerman and Na- 
gassari, I selected explanatory mineralogical 
ta. Tr or cellular lava ( emittiug when 
struck the sound of bricks ) of a red colour: of 
has several varicties are found iu different situa- 
tion; on the whole the color abounds in 
this district, both in the lavas and in the soil. 
Exp Cat, No 62, 63, 64 65 and Ge 
