703694-1871-Hydrographic-Notice- — Page 2

THE HONGKONG GOVERNMENT GAZETTE, 9TH DECEMBER, 1871.

539

Tao substance of this Notice, as soon as it is received on board, is to be inserted in red ink on the Charts affected by it; and introduced into the marglu, or otherwise in the page, of the Sailing Directions to which it relates. See Instructions, Navigation and Pilotage, p. 172.

NOTICE TO MARINERS.

[No. 36. ]

JAPAN-YEDO GULF ENTRANCE.

Flashing Light on Cape Sagami.

The Japanese Government has given Notice, that from the 1st March 1871, a light would be exhibited from a lighthouse recently scected on Cape Sagami, west side of the entrance of the Gulf of Yedo.

The light is a flashing white light, showing a flash every ten seconds, visible seaward from E. by N. to S.W. W., a red zetor of 10' is added to cover the Plymouth rocks, extending from the last bearing to S.S.W. W. It is elevated 110 feet shove the sea, and in clear weather should be seen from a distance of 16 miles.

The illuminating apparatus is dioptric or by lenses, of the second order. The Tower, 36 feet high, is situated on Tsuruga-suki in lat. 35° 8' N., long. 139° 41′ E.

[All Bearings are Magnetic. Variation 31° Westerly in 1871.] By Command of their Lordships,

Hydrographic Officé, Admiralty, London, 13th May 1871.

GEO. HENRY RICHARDS,

Hydrographer,

This Notter afbets the following Admiralty Charts :--Pacific Ocean, Sheet I., No. 2459; Japan islands, No. 2347; and Yedo Gulf, &c., No. 2657; Also China pilot, 4th Blition, page 471,

No. 172.

Agent for the Sale of Admiralty Charts, Mr. J. D. POTTER, 31, Poultry, London, E.C.

GOVERNMENT NOTIFICATION.

The following Hydrographic Notice, and Notices to Mariners, received from the Admiralty, are published for general information.

By Command,

Colonial Secretary's Office, Hongkong, 6th December, 1871.

J. GARDINER AUSTIN, Colonial Secretary.

The informativa routaised in this notice is to be carefully considered, to be noted in the Sailing Directions, and compared with the chart when the ship

is navigating the parts to which it refers.

HYDROGRAPHIC NOTICE.

[No. 14.]

EASTERN ARCHIPELAGO.

SULU SEA.

The following information relative to shoals in the Sulu sea has been received from Comuiander William Chimmo, R.N., of H.M. Surveying vessel. Nassar, 1871.*

Variation 1° 30′ Easterly in 1871.]

[All Bearings are Magnetic.

Jessie Brazlog.-The danger under this name has been found; it is a small sand islet on coral, the approximate position being in lat. 9 2 N., long, 119° 48′ 30′′ E.

Tub Betalt - A reof, 16 miles long, extending in a south-west and north-east direction, has been examined near the lwulity assigned to the Tub Batuba. On the reef are many sandy cays, and blocks of dark rock on a base of coral, and at the northern extreme is a condy islet about 15 feet high, covered with scrub, and visible at a distance of 5 or 6 miles in clear weather; this isler lies in Int. 8° 57′ 18′′ N. and long. 120° 00′ 45′′ E.

As within the distance of 2 miles from this islet there is no bottom at 1000 fathoms, sounding would give no indication of de vicinity of the danger at night or in thick weather.

St. Micbad Skoel is a large coral ba tk, lying E.S.E. and W.S.W., 8 miles long by 2 broad, having regular soundings of from 10 to 15 fathoms on it." The western extreme of the shoal is in lat. 7° 40' N. and long, 118° 17′ 30′′ E., and from it the peak of Cagayan Sulu can be seen in clear weather bearing S. by E. & F., distant 38 miles.

Vessels Lay pass over or anchor on the shoal; the Nassau lay at anchor here four days in 104 fathoms, sand and coral, but here is no saft anchorage about the St. Michael islands to the north-east of the shoal.

There ars doop channels between the shoat and St. Michael islands, and beween the islands, but care must be taken to moid the rou is that run off them, especially that off Manuk Manukan, which extends 34 miles to the north-west.

The Jaan Ref was carefully sounded, and not less than 16 feet water found on if; the reef is about a mile in extent, and lies nearly paidony between the islands of Bancuran and Bancawang in lat. 7° 50′ 10 N. and long. 118° 35′ E.

Bancuras has a dangerous reef extending from it to the westward for about 2 miles.

Streng die rips were observed in the neighbourhood of the Java reef; those rips disturb the surface of the sea without “Dy &pparent cause, and are generally in the deepest water,

Pudsey HorsanoAn extensive mass of coral patches was found in the neighbourhood of this shoal; on one of these parches as little as 10 feet was obtained, and is probably the shoal known as the Pudsey Dawson. The position of this shoal patch Is Int. 7° ď′ N., làng, 117° 46′ 80° E., and as the vicinity is known to abound with dangers, mariners are cautioned accordingly.

CELEBES.

The following information on shoals and reefs in the Eastern archipelago has been taken from the official Netherlands Magazine.

Gulf of Puanui.-The commander of the Netherlands steamer Haarlemmermeer reports the existence of a reef in the zair of Tonius, 2 calues in extent, and visible at a distance of 3 miles from the discoloration and breaking of the water; the tfbes in lat. 0° 17′ 3, and long. 120° 54′ E.

Gulf of Thongle-The sum officer reports a reef in the gulf of Tomorie, bearing N.E. distant 4 cables from the ship, whmu point One. M- Juba bore N. W. by W. W., the high point near Amboona S. by E., and a point of land S. W. † W.

* Sce Admiralty Curvetia Palawan Blurl, No. 967; Eastern Archipelago, Nos. 941 b, 942 a and b ; Baly strait, No. 934; Pacific Ocean, Sheet V., No. 2103.

*