51 
Flora of Narcondam and Barren Island. 
(a submarine peak that reaches the surface, but no more, in Lat. 11° 12' 
N. and Lon. 93° 36' B.), and 320 miles due west of Mergui. As shown 
in the subjoined table, the island, like Harcondam, I’ises abruptly out 
of deep water, especially on its eastern, western and northern sides, to 
a height of 8000 feet or more* above the floor of the Andaman Sea. 
Table II. — Soundings in the vicinity of Barren Island. 
General direction of 
LINE of soundings. 
Distance in miles from 
CENTRAL CONE. 
Depth of sounding in 
FATHOMS. 
E. S. E. 
li (i mile from shore). 
118 
E. S. E. 
2i 
433 
E. S. E. 
3i 
641 
E. S E. 
100 
1260 
N. N. E. 
li (i mile from shore). 
217 
N. N. E. 
2i 
545 
N. N. E. 
3f 
782 
N. 
H 
325 
N. 
25i 
1,140 
W. N. W. 
H (i mile from shore). 
180 
W. N. W. 
2i 
456 
W. N. W. 
4i 
655 
W. N.W. 
45 
1159 
W. 
If 
169 
W. 
30 
1130 
S. S. W. 
If (1 mile from shore). 
47 
S. S. W. 
3i 
238 
S. S. W. 
4i 
413 
Physiographical accounts of this island have been given by Ballf 
and Malletj; in whose papers a precis of previous information is also 
contained; a brief description is therefore all that is here necessary. 
Nearly circular in outline and about two miles in diameter, the island 
consists of a huge crater, of which the mouth is a mile wide and 
the rim is from three-quarters of a mile thick at the base—throughout 
its southern half, where it is from 920 to 1160 feet high—to barely half- 
a-mile thick—along the north where its height is from 630 to 790 
feet. The rim is further breached to below sea-level on the west side 
by a part of the original hill having been at one time blown away, the 
resulting gap being about a-quarter of a mile wide. In the middle of 
* Mallet and Carpenter : Eecords of the Geol. Survey of India, xx, 46, (foot-note). 
f Ball: Eecords of the Geol. Survey of India, vi, 81. 
J Mallet: Memoirs of the Geol. Survey of India, 251, et. seq. 
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