348
No. 100.
THE HONGKONG GOVERNMENT GAZETTE, 28TH APRIL, 1880,
GOVERNMENT NOTIFICATION.
The following Hydrographic Notice is published for general information.
By Command,
Colonial Secretary's Office, Hongkong, 28th April, 1880.
W. H. MARSH,
Colonir! Sienetar
REGISTRY NOTIFICATION.
No. 2 of 1880.
The following Hydrographic Notice is printed for the information of all interested in the Shipping of this for Copies will be supplied to British Shipmasters, Shipowners, or Agents, ou application at the Shipping Office.
Wat. DONALD STENCE, Acting Registrar.
H. M.'s Registry Office of Shipping for China and Japan, Shanghai, 14th April, 1880.
YANG-TZE-KIANG.
(The Entrance.)
HYDROGRAPHIC NOTICE.
[All Bearings are Magnetic.. Variation in 1880, 2° 16′ West.]
The following information relative to the South, and Shaweishan Channels (Eutrance of Yang-tze-kiang), is hordiq promulgated.
Amherst Rocks.-Lying S. 9° E., 350 yards from the summit (26 feet high) of this cluster of recks is a detached r that dries 3 feet at L. W. S.
Ariadne Rocks.-These rocks break occasionally.
South Channel, Outer Bar.--Is 10 miles in length, by about 2 in breadth. The least water over the Day is 20 4
at L.W.S.
S.E. Spit, Tung-sha Banks.-This spit has extended and twisted Southward. At its extremne (3 fathoms L.W.S.) Beacon on House Island bears N. 52° W., 173 miles, Tung-sha Light-vessel N. 693 W., 74 miles.
South Channel.-In passing out of this channel, vessels of light dranght, when 2 miles Hast of the Wang-sha Lizz vessel, may steer straight for Shaweishan Island, without finding less than 9 feet at L.W.S., but if a food tile be canali. great caution is required not to be drawn on the Tung-sha Banks.
Courses-On entering from the Tung-sha Light-vessel, a course of N. 55° W. may be stored for the Kiusan Lụ vessel. After passing which steer N. 525 W. until the East extreme of New Island (bearing N. 595 W. 54 miles from: centre of Block House Island) bears North, when alter course to N. 79° W. for the Lismore fight vessel.
Shaweishan Channel.-If intending to go out by the North or Shaweishan Channel, after passing the Woo Buoy, steer into Mid-Channel and shape a course N. 42° W. (Taking care to avoid the 14 foot shoal N. 82- 1. 8 c: from Paoushan Point) Bush Island may then be rounded at a distance of 6 cables on its Western side, and a contsc 83 E. shaped towards Drinkwater Point, when the Western end of Bush Island is in line with Paonshian Pagoda. C should be taken to hug the Northern shore of Bush Island, as a bank with as little as 7 feet over it Hes North 15 n.. from its Western end.
When the conspicuous clump of trees on Middle Island (not marked on the churt, but bearing N. 17 W. A from the centre of Block House Island), bears S. 53° W., a course of S. 67° E. along the shore should be shaped, unit Beacon on Drinkwater Point bears North. From thence to the Fairway Buoy, S. 30° E. After which N, 75o E. direct to the Bar. When Shaweishau bears N. 622 E. the bar can be crossed to the Westward of it in 15 foot L.WS one foot more (16 feet) may be obtained by passing to the Southward of the Island on the former course (S. 70o H)
Tides-Great caution is required in steering courses between Drinkwater Point and Shuweishan Island, as the 707 are circular and strong.
During the first hour the flood tide sets to the Southward, working round through West to North. The obb dan the first hour sets to the Northward from thence working round through East towards South. The third hour of the and the fourth of the flood are generally the strongest, and ordinarily run from 3 to 4 knots at Springs, excepcionals 5.5 knots. The influence of these circular tides is not felt to the Westward of House Island in the Sonth Chanel, Drinkwater Point in the North Channel.
This notice affects the following Admiralty Charts-Nos. 1,199, 1,602, 1,480, and China Sea Directory Vol In Pages 357 and 358.
H.M.S. Magpie, Shanghai, 9th April, 1880.
B. II. NAPIER. Captain, in charge of 8"-
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