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Nautical Notices.

Crown And Blundell Islands offMorrison Island, Coast of China.

The following extract from the log of the ship Blundell forwarded to m W Com. It. Collinson, Rn., surveying on the Coast of China, is important to vessels navigating that yet unknown part of the world.

Extract from the log of the ship BltmdelL "The general appearance of Morrison Island is barren and rocky, with few trees, it is, perhaps, 10' long, and highest at the south-east end.

"There is a large village on the south side, and the valley behind beautifollj cultivated. The houses appear of stone and well built

"The position of the easternmost island agrees exactly with that given by the Amoncan ship Morrison, to one named after her; but no notice is taken by her, or in any other chart of the larger one.

"It is 15' from Morrison Island and extends 30' in an N.N.E. and S-S.W. direction. OfT the south-west part of it, and separated by a channel of half a mile, or a mile, is another small island, and 10' or 15' S.W. is a fourth, four or five leagues long, which is Crown Island. The large or Blundell Island a higher than the others, and liable to be thought one with Crown Island when seen from the westward. It is very uneven, composed of high sharp peaks. Crown Island lower and more level with a large village on the south-west side.

"Latitude 28° 04' N., longitude 129" 38' E.
Easternmost Island bearing N.E.b.E.
Outer Islands, W.S.W. to W.b.S. J S., 10' leagues.
Larger one, W. i S. to N. } E.
N.B.—Longitude agrees with Chusan."

The BassesCeylon.

Ship Tigris, Trincomalee, Sept. 1st, 184a Sir.—Having occasion to pass inside the Great Basses on my passage from Colombo to the above named harbour, I found the following ledge of soundings stretching out from the rocks in a north-cast direction. Extract from the log of the Tigris. "Aug. 28th, llh. 40m. Am.—Fresh breezes at south-west, with fine clear weather.—Saw the Great Basses bearing S.E.b.S., one mile and a half. Hauled out south-east, at 12h. 20m. P.m.; the rocks bore S.W.b.S., one mile and a half; steered then north-cast eight miles, with the rocks bearing south-west, and had the following soundings, viz. 9. 10. 12. 10. 9. 8. 7. 6. 6j. Had one cast of six fathoms when five miles from the rocks."

As there arc no such soundings laid down in Horsburgh's or the Admiralty charts, (all of which I have), I take the liberty of sending the above correct soundings, running out from the north-east end of the Great Basses.

I am, &c,

John Svmons,
Master of ship Tigris.

[A question arises as to whether these soundings were taken at equal intervals of distance from each other, which wc should feel obliged to the master of the Tigris to answer.—Ed.]

The Anna Suoal, Reported In The Atlantic.

We record the following statement although " the shoal" reported seems to have been the wreck of o vessel. The master appears to have had the same Antipathy to dropping his lead overboard as others before him.

Extract from the log of the Sicilian brig Anna. "Tuesday, June 8th, 1841, P.m.—Ship sailing with all sails set.

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"At 3 P.m. observed a shoal to tho south, distance about two miles, appearing to the eye like a ship with three masts of equal height, and inclining towards the south, and about fifty feet high, surrounded by shoals level with the water.

"Wind at the time being S.E.b.S.
Weather moderate and clear.
Latitude at noon by observation
Longitude by account .
The same by calculation at 3 P.m. .
Longitude •

"Having made seven miles to the eastward from noon to that hour." The weather being unfavourable, the master could not make any local observations, and was obliged to pursue his voyage to Naples.

(Signed) Marco Carmemch,

Master of the Anna.

Condado Bank, Panama Bay.

We understand that H. M. S. Actceon, Capt Russel, in working into tho bay of Panama on the 26th of December last, grounded on a bank called the Condado not laid down in the charts, with the following bearings.—Panama Cathedral W.b.S. the outer Perico island S.S.W. } W. The ship took tho ground from 4} fathoms, payed off before the wind and in ten minutes was again afloat. The upper part of Panama bay off the Town has very shoal water, and as there is no good survey yet made of it, a measure so highly desirable in these days of Steam Navigation, vessels are recommended not to make too free in standing inshore.

Princess Shoal, New Ireland.From Mr. Purely.

July 4th, 6 A.m.—On the 9th of June 1829, tho Princess Royal sailed from Port Jackson, bound to Batavia; and she got through St. George's Channel on the 2nd of July, at 8 p. in. ; that day it became quite calm, we found tho ship had driven alongside a steep bank or reef, but the water was so very smooth it was some minutes before we discovered our danger. The kedges were immediately got out, but the water was so deep they were of no use. Got the boats abreast and endeavoured to tow her head off but could not. At 2 a.m. a light breeze springing up from the southward when she immediately went off, cut the warps and made all sail. Whilst alongside the Bitik, the water was so smooth that we scarcely felt the touch. The latitude is 4" G' S., and longitude 151° 37' E. of Greenwich, and lies directly in the fairway of ships steering to the westward from St. Georges Channel—the extent could not be ascertained.

Soundings along the side of the bank, starboard five chains 9 feet, mizen chains 7 feet, larboard five chains 11 fathoms, mizen chains 12 fathoms, under the fore foot 5 fathoms, under the stem post 5 fathoms dash; at a ship's length to the northward no bottom at 50 fathoms. Bearings from the ship whilst alongside the bank.

Cape Stephens S.W} W. 12m., Point marked A. J S.b.E. E. 11m.—True bearings.

The Money ShoalArrafixra Sea.

The following is an important addition to the charts of this sea.

Dean March, Bristol, Sept. 21, 1841.

Sir.— I take the liberty of sending you information of a coral shoal which I

passed over, in the Ship William Money on my late voyage from Sydney

towards India, by way of Torres Straits, three other ships were in company

viz., Lady Clarke, Livingstone, and King William, and our longitudes ugrccing within two mrlcs, the said shoal lies in 10° 19» S. latitude and 13?5 47 E. longitude, its extent about 5 miles, and the shoalest cast we had was H fata***. 1841, at 2 A.m., saw land a head, luffed and cleared it; it appeared to be an island five or six miles in length, running N.E. and S.W., with a high round bluff on the N.E. end, with low land to the S.W.; between the N.E. and S.W. ends there appeared a valley covered with ice and snow; we passed it within a quarter of a mile, going at least ten knots, latitude 59° 20' S., longitude 120° 20' W. The latitude and longitude may differ a few miles, by reason of not having had proper observations for several preceding and following days. This island is not laid down in any of our charts.—St. John, N.B., Courier, Aug. 21.

It is probable, that shortly this shoal may become very dangen-os »»i I could find no danger placed in any of my charts near the above *a;ua»«; perhaps you may think it worthy of notice in your truly useful and esawt publication, and may be of aervice to some of our frieads sailing in the Testa Sea.

I am, &e.

S. Gscex,

To the Editor, $c. Late Commander of Mp William Mottj.

The following extracts from the Shipping Gazette contain new and impcrtiBt matter to seamen :—

Ntw Buoy At Bahia.—The French consul at Bahia Informs » by lettn. that a red buoy will bo placed on the sand bank which extends from Fort GanUa, or St. Marui li'n, to opposite tlie Obelisk, at the public garden. On entera^, this buoy must be passed on the right; the same is placed at a depth of t\ fathoms at low water. The necessity of placing a buoy on this bank ia skora by many ships hairing touched on the amine lately.

Light Vessel At Sayana.—Custom-house Sayana, Aug. 9—The fouowng information in relation to the floating light near Martins Industry, and the bettings and distance from it of adjacent points, is deemed of sufficient interest to mariners to render its publication proper. The floating light is moored near Martins Industry, in latitude 31° 7' N., longitude 80° 34' W., and has ibe following soundings:—At high water, 6) fathoms; common tides, 5}; to* water, GJ; Tybee lighthouse bearing S.W.b.W. i W., distance 15 miles: Hilton Head bearing N.W. J N., distance 8 miles; Bay Point bearing N.N.W.| H'., distance 8 miles.—James Hunter, Collector.

The following notices will place seamen on their guard until we can obtain more precise accounts of the dangers alluded to. The "Red Cliffs'' is an ambiguous term which we trust the harbour-master will explain to us. With respect to the rock off Sea Elephant Island, having consulted Capt. rVickbarei survey, we believe the rock lies N.N.E. from the body of the island within the distance specified, instead of S.S.W. as would appear from the account.

Another rock stated to be off the west end, is about midway between tat north and south extremes on the western shore. *

Port Philip.Capt Lewis, the harbour-master, has very kindly furnishei us with the following maritime information :—" Opposite the Bed Bluff, on the eastern side of the harbour of Port Philip, there is a sunken rock, with eight ft et of water above it at three-quarter flood; its situation is about two nJes W.b.S. from the Red Cliffs, with deep water close to the edge of the rock.""

No. 1—Kings Island.— The N.N.E. Rock.—Off Sea Elephant Island, is Bass Straits, about four miles, there is a rock visible at low water, but co\errf at the flood. The body of the Island bears by compass from the rock, N.N.K.; at half-tide it is visible above water to the size and height of a whale boat.

No. 2—Kings Island.—The Midway Rock.—The rock off the west end of ft'lp Island, Bass Straits, some account of which was formerly published in u* »ielbourne papers, lies in latitude 39° 51' instead of 40- 9' as was formerly

son ll118 elTor '" lhe PuI>lislwul "ccount (which might lead to serious elo

quences) escaped Capt. Lewis's attention at the time it appeared, in cou*Huencc of his absence at the Heads.— Port Philip Patriot.

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Obleana Reef.China Sea. *■

The following is a very important shoal communicated to the Shipping Gazette, and we recommend our readers frequenting the China Sea, to lose no time in transferring it to their charts. It is evidently a continuation of the cluster of reefs, commencing with the London Reefs on the north, and extending southward of the Bombay Castle. By laying down the courses and distances, run by the Orleana, the crescent form of the reef, and the position of the ship is sufficiently apparent. Owens Shoal, alluded to by Captain Cameron, is considerably to the northward of the Orleana Reef.—Ed. N.M.

"On the 27th of May, 1811, about 8 A.m., on my passage down the China Sea, in the Orleana, with a light wind at south-west, saw a ripple from the deck; tacked immediately and took a cast of the lead; got eighteen fathoms. Next cast eight feet, the bottom seen plainlyfrom the deck—rugged black and white coral rocks. Then, heading W.N.W., but finding the water no deeper, kept nway N.N.W., the opposite course to that we had been steering on the starboard tack, keeping the depth of from eight to twenty fathoms, the bottom seen plainly in thirteen fathoms. From first sounding we had made about a northwest course six miles, when the Tipple was seen about a point on the lee bow; at 9h. 30m. tacked to the S.S.E. in about the same depths for three miles, when white patches were reported from the masthead on the weather bow bearing south. Not being able to weather them, at lOh. 30m. tacked to W.N.W. in seven fathoms, (six miles.) At this time, from the masthead, the shoal had the form of a crescent, and the ship embayed in the middle of it j the southern extremity white patches, and the north-west a ripple, as far as the eye could reach. Stood on the larboard tack, W.N.W., in the same depths, when about noon it suddenly deepened to forty fathoms, and shortly afterwards no bottom, with 120 fathoms of fine. Noon—lat. observed 7° 5G' north, long, by chronometer, at 9 A.m., Ill0 38'east. I had, by daylight, reckoned to be clear of Owens Shoal, which I now believe this to be a part of, or very closely connected, for the following reasons, (see the supplement to Horsburgh's Directory, Cape 643.)—The description Horsburgh gives of its appearance under the ship, agrees exactly with what was seen from our deck, but only in extent about two mill's. If connected with that which we were on, he must only have passed over a small portion of it He gives the lat. 8° 8' north, long. 111° 59' cast. At 9 A.m. our latitude, deduced from noon, was 7" 53' north, and long, by chronometer, 111° 38' east, both of us having good observations. At that time the white patches were seen from our masthead several miles to the southward. That it cannot be of less than twenty miles or upwards, in a S.S.E. and N.N.W. direction, as it is the south-west extremity of the Archipelago of shoals in the China Sea, (for anything we know as yet,) it must be of importance for ships leaving China bite in the season to know its extent, if under the necessity of taking the Strait of Balabac. As the water was quite smooth and no current, I judged there was much less water where the ripple was than where we sounded; as for the bottom that was seen, we had no indication till right over it, and was always seen sooner from deck than aloft. I was anxious to sound in the ripple, but not knowing how soon we might want the boats for other purposes, did not make the attempt.

"Alexander Cameron. "St. Katharine'! Dock, Oct. 14, 1841." "Com. nftlie ship Orleana"'

Chinrsk Chops—.The reader has probably encountered in the jsMc journals, during the late transactions between the English and the Chinese some mention of the chops, or official documents of theCbiwe empire, and might like to know what is the appearance presented by sack documents. In the Museum of the Asiatic Society there is a " chop, the translation of which would probably not be a little curious. Itisibad of permit or license granted to the explain of the ship Sarah, fornimto depart from Canton with his cargo for England. This was the first ship which left Canton for England after the throwing open of the Chin* trade in 1834; having on board a cargo of silk, valued at £400,000. The chop is written on a sheet of paper, measuring about 3 feet by 2, and the writing with which the sheet is covered, in the Chinese chiracter, consists of an enumeration of the qualities, importance, aw virtues of the official personage who grants it; a statement of the reasons why the "strauger-person" is desirous of going to his o*n country; and an acknowledgment that all proper dues had beenpsiu, and observances fulfilled by the captain, and a permission to him to set sail.

Racks Of Lough Strangford.

Tub following information will be useful to persons unacquainted wili the dangerous nature of the tide at the entrance of Lough Strangford:—

Mr. Kditor.—It may, perhaps, be interesting, if not useful, to some of your readers to learn from authentic experiments, the rate of the tide in the narrows of Lough Strangford,—a port rendered so formidable by the Races off it as to be almost universally shunned even as a harbour of refuge. The tides at this port have been variously staled to run from eight to ten knots at the springs, and the frightful race which occurs upon the bar with southerly winds would certainly Und to that conclusion, but by actual experiment in the narrowest, and n>°« rapid part of the channel (between the Perches off Bankmore); *fi on a day when there was a rise of thirty feet at Liverpool, I found its rate something under seven knots, on both flood and ebb, as shewn below.

In order to give it a fair trial I steamed into the strongest part of the tide, and regulated the speed of the vessel so as to keep two na«5 abreast precisely in one, and then, by means of the patent log hauled in at each hour, determined the rate at which the water was passing uw vessel. We did the same on both flood and ebb, and as this con/in* several former experiments, of steaming into this Lough against spring tides, made without the log, I have no doubt that any vessel wi'n' fair wind, that will sail eight and a half knots, would enter the Long" at any time, provided she could steer through the Race.

In making these experiments I found a singular effect produced op" the engine whenever the vessel came near the whirls, at the edge of whicn the tide runs strongest. Until we came into these places the speed of the vessel was 9-2 knots, and the revolutions 22, but directly we enterM the eddy the revolutions were brought down to 19, and even IS, WTM the vessel could not be forced one foot over the tide which ran on)/ 6-9 knots. *

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