78 
NARRATIVE. 
pletely exhausted, and did not reach camp until next 
day; some of our horses which broke down had 
to be abandoned and left to their fate. 
On July 22nd we marched twenty-five miles north- 
wards to Lak Zung, keeping towards the dome- 
shaped peak, which we passed, and entered a winding 
valley with rugged precipitous rocks on either side. 
On a solitary rock, about 200 feet high, I saw the 
remains of an enormous nest, probably of some 
raptorial bird, for the ground underneath was strewn 
with fragments of bone, &c. &c. 
A herd of antelopes was seen by some of our party 
who were in advance of the rest. The hills near 
Lak Zung had all the appearance of ruined castles, 
and some of them were of the most extraordinary 
shapes. In many places the ground was strewn with 
fragments of limestone containing fossils. I col- 
lected a number of specimens, which were afterwards 
lost, but Mr. F. Drew informs me that the fossils are 
chiefly encrinites and hippurites. 
A section of one of the hills would present 
something of the appearance shown in the accom- 
panying diagram. There are two distinct strata 
containing the fossils ; the lower and older, " c," 
is a dark grey or sometimes blue limestone, 
sometimes flaky ; the upper and newer is a lighter- 
coloured limestone, sometimes white, sometimes 
drab, and sometimes light grey; this limestone has 
occasionally a reddish-brown tint on the outside from 
oxidation, but when broken it shows the above 
colours. The upper limestone, " a'' is of younger or 
difierent age, and this is determined by the inter- 
position of red-sandstone horizontal beds, which 
