675601-1883-Hydrographic-Notices- — Page 4

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THE HONGKONG GOVERNMENT GAZETTE, 7TH APRIL, 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. 3 of 1883,]

SOUTH AMERICA-RIO DE LA PLATA.

The following information is an extract from a report by the Commanding Officer of the French dispatch vessel La Bourdonnais, in 1882:

4.-Port de la Bocca.-La Bourdonnais entered the Port de la Bocca through an artificial channel dredged in the mud.

The direction in which the channel runs from the land is N. 64° E. It should be 21 feet deep, which is the average depth of the river between Montevideo and Buenos Ayres. Its width is to be about 100 yards, and its total length about 8 miles from the port to the anchorage for mail steamers. At present the channel is accessible to vessels drawing 13 feet of water. It is marked by buoys and beacons. From the light-vessel in the outer roads steer S. 68° 30′ W. for the outer beacons of the channel.

Martin Garcia pass.With the wind from W. and NW. there is some

it is very rare that a vessel drawing 15 feet of water cannot find, during 24 hours

is bar; but Watching

for a favorable opportunity, profiting by accidental rises produced by SE. winds, or in the season of high water, in December, January, February, and March, one can easily cross the bar in a vessel drawing 18 feet of wat

ottom is very soft mud, in which one may navigate very well, for a mile or two, with a foot less than his draught of water.

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A maritime company which has established a direct line between Havre and Rosario has adopted 13 feet for the draught of their vessels when crossing the bar, after having discharged a part of their cargo at Montgridbo or Buenos Ayres. This draught of water seems to be the one best suited for rapid commercial operations, bas it is not a rare thug to see at Rosario a vessel drawing 16 feet of water.

Rosario, which, owing to its railroad, is the head of a line of eleven provincen through which the whole interior supplies itself with the manufactures of Europa

produce to Europe by way of Rosario.

The anchorage before the city is large enough to accommodate a considerable number of vessels. wharves on piles. (H. N. 3-'83.)

(Bearings magnetic. Variation, 9° 30′ easterly, in 1883.)

This Notice affects the following Charts, &c. :

Hydrographic Office :

(Notice Hydrographique, No. 60, Paris, 1882.

4.-Nos. 616, 504, 498, 502 and 505, North shore of the Rio de la Plata. British Admiralty :

4.-Nos. 2039, 1938, 2544, 1749 and 2526, Buenos Ayres Roads, &c. Sailing Directions:

"Rio de la Plata" (U. S. H. O.), 1875, pages 57, 71, 95 and 128 (4). "South America Pilot," Part I, 1874, pages 199, 205 and 221 (4).

By order of the Bureau of Navigation:

uhlie, is the point

send her

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

reau.

U. S. HYDROGRAPHIC OFFICE, Washington, D. C., January 13, 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 and Light-list to which it relates.

HYDROGRAPHIC NOTICE.. [No. 7 of 1883.]

SOUTH AMERICA-BRAZIL.

18.--Shoal at mouth of Pará river.-With reference to Notice to Mariners, No. 104 (587) of 1882, and Hydrographic Notice, No. 61 of 1882, further information has been received that the light-ship in Braganza channel is not always at her station, but when at anchor, she is practically in the position as given on H. G. chart No. 887, and that the shoal reported by Captain Talcott Jones, of the steam-ship Berkshire, is probably the one marked on this same chart, lying NE. nine miles from the light-ship.

There is a buoy anchored E. northerly, about 3 miles from the light-ship.

It is also reported that between the bearings N. and NE. by E., eight to ten miles from the light-ship, is all foul ground, and navigators should be very cautious in that vicinity.

Directions. Entering the river by Braganza channel, make Salinas light first and steer for the light-shin, about W NW. on the flood and W. NW. W. on the ebb tide.

Leaving the river, steer from the light-ship E NE., nothing to the northward, for at least 1 miles. (H. N83).

(Bearings magnetic. Variation 2° 35′ westerly in 1888.)

(Lettter and enclosure of A. C. Prindle, U. S. Consul, Pará, Brazil, December 14, 1982.)

PERNAMBUCO.

19. Shoal. The commanding officer of the Italian corvette Vettor Pisani, reports that there exists a shoal, to the eastward of English bank in Pernambuco road, to which he has given the name Vettor Pisani bank.

This bank is about 450 yards long in a N. and S. direction, and about 165 yards wide. It has over it depths varying from 25 to 284 feet, rocky bottom, the least depth of 25 feet is found at about the center of the bank,