The China Sea directory - Sabrizain.org

264 SUNDA STRAIT TO BANKA STRAIT. iam-^.v.
Heof.—About one, mile S.E. of Ranpfat island, lies a coral reef of 4 feet,
extending about one cables north and south, and 2| cables, east and west,
' with 4 to 5 fathoms around it. A similar patch is'ch'arted about mid\ray
between it and Dyogon island.
EdelitLg shoals consist of two coral patches half *a mile apart. The
eastern shoal baS about 3 fathoms at low wsrter, and-tbe western, ^fathoms;
'
they lie midway between West Dua and Kangat islands:'
Earang BeronaUg, a coral reef one cSabie in extent, with 1^ fathoms
least water, and from 14 to 18 fathoms, mud, around, 'lies about- one third
of a mile ' north- westSvard of Edeling shoals, with Eangat island bearing
South, and West Dua N.E. by E. The reef is usually marked' by rippte.*
Vessels of heavy draft should pass well to the westward of a line joining
West Dua and West islands.
North, and Dua islands (East and West Duia), the two northern
of the Thonsand islands, stand out conspicuously from the group. They
lie respectively N.E. by E. 6f miles, and N.E. ^\E. 6J miles from West
island. A detached reef, which breaks, lies half a mile westward of East
Dua island.
Jason rock, the position of which has been determined by H.N.M.
surveying vessel Blommendal, 1886, had not been seen or reported since
the year 1712, though frequently searched for. It is found to be a
dangerous coral patch, about 50 yards in extent, with a least depth of
13 feet, and 16 to 19 fathoms close around, lying with the following
bearings : North Watcher lighthouse, N. 40° B. ; Dua West islets N. 89° E. ;
and Pulo Peblakan or West island, S. 62° E.; distant 1| miles from the
position formerly assigned it.
The position of this rock is indicated only when there is a current
ripples over it were distinctly seen from the deck' of the Blomtriendal at a
distance of 7 cables ; the sea was not seeii to break on the roCk, and the
water was discoloured only in the immediate vicinityi
'
'
Earang Majang, a small coral head of 4J fathoms, has been found
on the north-east side of the Thousand islands, with Eingiet island bearing
W.S.W. -distant nearly 2 miles.*
,.!''
SOUTH WATCHER (Pulo Peniki) lies about 7 miles eastward
of the southern groups of the Thousand islands, and 16| miles
N.N.W. f W. from Edam island lighthouse in Batavia road,. , It
covered with trees and surrounded by a reef extending .
is small
fronsi: one to 2
cableSj with depths of 23 fathoms within half a cable' of the reef. The
island is visible from a distance of about 13 miles, and from a vessel abreast
of it the Thousand islands will be seen -from aloft.
NORTH WATCHER, the summit of which is in lat. 5° 12^': S.
long. 106° 27i' E., is 650 yards in length, 270 yards in breadth and covered
* H.N.M. Surveying vessel Hydrograaf, 1 886.
J;