675601-1883-Hydrographic-Notices- — Page 5

THE HONGKONG GOVERNMENT GAZETTE, 7TH APRIL, 1883.

321

It lies on the following bearings:

Olinda light-house......

Fort Buraco

Picão light-house

N. 1° 20′ E.

N. 55° 30′ W.

N. 77° 45′ W., about 12 miles.

Directions for anchoring.-Bring Fort Picão in line with Fort Brum, bearing N. 61° 20′ W., and run in on this alignment. Anchor in from six to seven fathoms with Olinda light bearing, approximately, N. 15° E. The alignment of Forts Picão and Brum passes about 760 yards from the southern edge of Vettor Pisani bank, which should be avoided when the sea is heavy. (H. N. 7-'83.)

(Bearings magnetic. Variation 11° 40′ westerly in 1883.)

(Avviso ai Naviganti, No. 396, Genova, 1882.)

AFRICA-WEST COAST-ST. THOMAS ISLAND.

20.-Shoal on Chaves bank-The captain of the transport La Seudre, reports that his vessel touched lightly, in 18 feet of water, on the southern extremity of Chaves bank. (H. N. 7-'83.)

(Annonce Hydrographique No. 170 (987), Paris, 1882.)

GABOON RIVER.

21.-Survey of Themis bank.-Captain Villeneuve, commanding the French surveying-vessel Segond, reports that Themis bank is composed of two shoals of hard sand, each about 200 yards in extent.

One of these shoals,

16 feet of water, lies on the following bearings:

The northern extremity of Fetish wood, Pongara point The white beacon on Cape Joinville (Santa Clara)

................. S. 69° E. S. 31° E. N. 1o E.

A small black buoy has been moored about 60 yards from the southern edge of the shoal, and lies about 1.2 miles N. 72° E. from the large black buoy known as the Themis buoy.

The other shoal, covered with 18 feet of water, lies 1,600 yards S. 58° E. from the preceding.

(H. N. 7-'83.)

(Bearings magnetic. Variation 20° westerly in 1883.)

(Annonce Hydrographique, No. 169 (982), Paris, 1882.)

This notices affects the following Charts, &c. :

Hydrographic Office:

20 and 21.-No. 22, North Atlantic Ocean, Sheet II. 18.-Nos. 23, 41, 887 and 441, River Pará.

19.-Nos. 29, 28, 463, 462 and 482, Pernambuco Road.

British Admiralty:

18 and 19.-Nos, 22023 and 2203, South Atlantic Ocean.

$20 and 21. – Nos. 594, 2059 and 2202A, South Atlantic Ocean, Eastern Portion,

18.--No 1803 and 2186, River Pará.

19.-Nos. 528, 890 and 529, Pernambuco to Victoria,

· 20.—No. 386, St. Thomas Island.

21.-Nos. 1361 and 1877, River Gaboon.

Sailing Directions, sze. :

Coast of South America," Part I, (U, S. H. O.), page 85 (18); page 154 (19).

ost sheet of Africa," Vol. III, 1877, (U. 8. H. O.), page 26 (20); Vol. II, 1875, page 263 (21).

U. S. Light-list No. la of 1881.

No.

Page.

H. N. 7-'83. (18.)

808

144

By order of the Bureau of Navigation :

J. C. P. de KRAFFT, Commodore, U. S. N., Hydrographer to the Bureau.

U. S. HYDROGBaphic Office, Washington, D. C., January 23, 1883.

The substance of this Notice is to be inserted in red ink on the Charts affected by it, and introduced into the margin, or otherwise in the page, of the Sailing Directions to which it relates.

HYDROGRAPHIC NOTICE.

[No. 8 of 1883.]

WEST INDIES.

The following sailing directions for the Lesser Caymans (comprising Little Cayman and Cayman Brac islands) are derived from the survey made by Lieutenant A Carpenter, H. B. M. Š. Sparrowhawk, 1880 -

22 Little Cayman.-This island is nine miles long in an E NE. and W SW. direction, and about one mile broad; it is covered with bush, and has two small hills on it about 50 feet high.

When seen from eastward, the most conspicuous part of the island is Wcary hill, 45 feet high, situated a mile from the

east extreme.

Sparrowhawk hill, 48 feet high, situated near the north shore, about midway between the east and west extremes of the island, appears as a double peak when seen from northward or southwestward; Cleft Tree clump on the south shore is also a conspicuous object. Sand Cliff point, near the east extreme of the island, appears as a white patch when seen from Cayman Brac.