42 
Flora o/Narcondam and Barren Island, 
It is in tliis last-named area that the islands of Narcondam and 
Barren Island, which form the subject of the present paper, are situated. 
These islands the writer was, through the kindness of Col. Cadell, v. C., 
late Chief Commissioner of the Andamans, enabled to visit in March 
and April 1891, in order to investigate their Flora, hlarcondam was 
examined for ten days in the end of March ; after an interval occupied 
in visiting Little Andaman and the Nicobars,* Barren Island was ex¬ 
amined from April 5th to April 8th. 
The volcanic island of Narcondam is situated in the Andaman Sea 
inLat. 13°26'N. and Lon. 95° 15' E., 80 miles to the east of Port Corn¬ 
wallis in North Andaman, 74 miles north-north-east of Barren Island, 
150 miles to the south of the nearest point on the coast of Pegu, and 250 
miles due west of Mergui. The island rises abruptly out of deep water, 
more especially on its eastern, western and southern sides, to a height 
of 2330 feet above sea level, and of 8000 feet from the floor of the 
Andaman sea between it and North Andaman to the west, and between 
it and Tavoy on the east.f 
The soundings on which the conclusion is based are given in the 
following table:— 
Table I .{—Soundings in the vicinity of Narcondam. 
GENERAL DIRECTION OF 
LINE OP SOUNDINGS, 
DISTANCE IN MILES FROM 
CENTRAL PEAK. 
DEPTH OF SOUNDINGS IN 
FATHOMS. 
E. S. E. 
H 
90 
E. S. E, 
2 
75 
E. 6 . E. 
138 
E. S. E. 
3i 
284 
E. S. E. 
3| 
333 
E. S. B. 
4f 
486 
E. S. E. 
IQO 
1050 
S. S. E. 
li 
242 
s. s. w. 
If 
182 
s. s. w. 
2f 
465 
s. s. w. 
3a 
652 
s. s, w. 
24J 
1010 
* Proceedings of the Asiatic Society of Bengal for 1891 (December), p. 156. 
t Stieler: Hand Atlas, sheet 67 shows depths, which are quite wrong, of 2097 
and 2200 fathoms to the E. and S. E. of Narcondam; how these errors have arisen 
the writer cannot trace. Sheet 58 of the same Atlas gives the true depth. 
t This Table, with the corresponding one for Barren Island, is mainly derived 
from Mallet and Carpenter, Eecords of the Geological Survey of India, xx, 46, et 
seq., with additional soundings from a copy of the Sounding-Book of H, M. I.*M. 
Survey Steamer “ Investigator" kindly lent by Dr. Alcock 
256 
