The land mark on Norderhoi (a rising ground) will be provided with a piece of board, one fathom square, painted white, and placed upon the mark immediately underneath the Top Buoy, and so as to face with its square surface towards the Dutchman's Deep (Hol lænderdybet.)

5. The sea marks will, in general, be put out and taken in at the same time or simul taneously with the floating light in the passage before Drago; not, however, unless it can be done with perfect safety, or without risk of their being lost or displaced by floating ice.

The floats and staffs on the Sandshoaltong, the South Rysse, and the Holmetong, will remain out the whole year. On the site occupied by the Drago Sandshoal Buoy, will be placed on its removal in the autumn, a float and staff of the same description with the rest placed on Westvallen.

SAILING DIRECTIONS FOR PORT LINCOLN.

The following sailing directions for Port Lincoln, were officially laid before the gov ernment, and published in the South Australian Register, by Thomas Sipson, harbor. master. They will be found useful to mariners bound to Port Lincoln, or Port Adelaide. In Flinder's chart there is a rock marked between William's and Smith's islands, said to be breaking at times. The harbor-master (Sipson) had a most favorable opportunity, and took every pains to discover it, but saw nothing of the kind. The master of a French whaler, lying in Memory Cove, who was fishing there the last season, said he had been through in that direction, and did not believe there was any rock between the above-mentioned islands.

North by west, one mile and a half from the north end of Thistle Island, is a large flat rock, that may be seen two or three miles from a ship's deck; and north three miles, (where there is a rock marked in the chart,) is a reef with six feet of water on it at half tide, and does not show above water. It is therefore necessary to be very cautious, and not take the rock that is seen above water for the one on the chart, as passing that at what would be considered a safe distance, would lead a ship on the reef.

Mr. Sipson passed through the ripple marked by Flinders, between Little and Hopkins islands, where it is supposed he lost his boat's crew. Small vessels must avoid going through it. In bad weather the sea must be tremendous; it is occasioned by the tide and the sudden change of soundings, (from eighteen to twelve, ten, and nine fathoms,) but quite clear otherwise.

About three miles from the entrance of Thorny Passage is Memory Cove, where six or seven ships of the largest size may lie sheltered. The water is seven fathoms within a few yards of the head of the cove.

There is also an extensive fine bay between Taylor's Island and the shore, where any number of ships may anchor; indeed, there is sheltered anchorage anywhere, if required, from Taylor's Island to Cape Dorrington, at a fair distance from the shore.

Ships coming from the westward should run to the lat. 35 deg. 35 min., until they make Kangaroo Island. If bound for Port Lincoln, and going through Thorny Passage, shape their course for William's Island, leaving Neptune's Island a berth, which may be seen four or five leagues; leaving William's Island on the starboard hand, proceed on to the east point, and enter the passage between it and Smith's Island; making the fair way up, by keeping the shore aboard, which is steep close to, leaving all the islands on the starboard hand, except Taylor's Island, which will make a fair course by leaving it on the larboard hand. When to the northward of Taylor's Island, proceed along shore for Cape Dorrington. Off the cape is a small island with a very good channel (though narrow) be tween it and the cape, with five fathoms. In going through it, borrow towards the island.

In proceeding to Boston Bay, the south end of Boston Island may be rounded pretty close; but in going through the north passage, give the north point a berth of half a mile, as the water shoals off it in a northeast direction.

All around Boston Bay the soundings are good and clear; ships leaving Cape Dorring. ton, and bound to the westward, will find a southeast course carry them well between the shoals until they see the wedge, which they had better leave on the larboard hand, and give it a good berth, as the peaked rocks run some distance off.

In running up Investigator's Strait, make Point Marsden and the high land about Cape Jarvis, and keep it aboard, which will insure a berth from Troubridge Shoal; as it is impossible to say, having Blackstair's Passage open, what may be the influence of the tide, proceed up the gulf in ten and eleven fathoms. Holdfast Bay is due west of Mount Lofty; near the beach is a flag-staff, rigged as the mast of a ship, this staff bearing east or opposite to it, in five fathoms, or two miles and a half from the beach, is the best anchorage for ships. Ships bound for the port must run twelve miles higher up, taking care not to come within five fathoms, as the water shoals some distance off above Holdfast Bay. The pilot station is between the bay and the bar, where there is a staff with a flag on it. When opposite this, will be seen a large beacon buoy, with a ball on it, pointing the fair way to the passage over the bar.

If it should be dark, or any other circumstance prevent the pilot getting on board, they may anchor, but not in less than five fathoms, which will be about two miles and a half from the beach. When at anchor in any part of the gulf, it is highly necessary to give a great length of chain in good time, and if the gale comes on, give all the chain possi. ble, and keep from letting go the second anchor, which confines the ship in a ground swell, and makes her strain. Ships not drawing more than fourteen feet may then proceed to the pilot station.

MADELINE AND CHARLOTTE ROCK, OFF BONAVISTA.

A letter has been received in New York, by Charles King, Esq., the editor of the American, from the United States Consul at Cape de Verd islands, dated St. Jago, May 4, 1841, showing the existence of a rock among the Cape de Verd islands, which has never been laid down in the charts. On the 18th of April, the British ship Charlotte, of Alloa, (Scotland,) Capt. Forester, struck on a rock in latitude 16 deg. 17 min. N., longitude 22 deg. 21 min. W., heeled over in about ten minutes, filled, and sunk. The rock is 300 feet in length, under water, in the shape of a crescent, opens to the northward, and the sea breaks only at particular times of tide. The rock bears from the outer end of Hartwell reef, off the island of Bonavista, N. E. by E., distance 224 miles per compass, by Vidal & Mudge's chart, Leton's survey. It is in the direct route for all vessels bound to New Hol land or India. Vessels are advised to sight Isle of Sal, run down close to it either on the E. or W. side, and pass to the westward of Bonavista, and Leton's rock; by doing so, they clear this rock, (which has been called Madeline and Charlotte Rock,) and the reefs on the eastern side of Bonavista.

LIGHTHOUSE AT GIBRALTAR.

Under date, Trinity House, London, April 6, 1841, J. Herbert, secretary, has furnished the Department of State, at Washington, with the following notice to mariners :

"The lighthouse which, for some time past, has been in the course of erection at Gibraltar, being now nearly completed, notice is hereby given, that the light therein will be exhibited for the first time on the evening of the 1st August next, and thenceforth con tinue every night, from sunset to sunrise. Mariners are to observe that this lighthouse is situate upon Europa Point, and that a powerful fixed light will be exhibited therein, and will burn at an elevation of 150 fect, or thereabouts, above the level of the sea."

LIGHTHOUSE AT HOBSON'S BAY, PORT PHILIP.

The following notice to mariners has been transmitted to Lloyd's by the harbor-master at Melbourne, Port Philip :

"After the 1st of August, 1840, a plain stationary light will be shown from sunset to sunrise, from a lighthouse erected on the extremity of Gillibrand's Point, Williamstown, Hobson's Bay, visible five leagues in clear weather from any safe position to the southward. The bearings by compass are as follow:-From the north end of the wester channel the anchorage at Williamstown bears N. 14 deg. E. From the north end of Symond's Channel, the anchorage at Williamstown bears N. 60 deg. E. From the north end of the pinnace channel the anchorage at Williamstown bears N. 5 deg. E. From the north end of the south channel the anchorage at Williamstown bears N. 4 deg. W. The courses indicated will give vessels a fair berth from the shoal off Gillibrand's Point. Care must be taken after bringing the lighthouse to bear N. 22 deg. E. to N. 7 deg. E. 1 mile. After rounding the light, and bringing it to bear about S. 14 deg. W. 1 min., the anchor may be dropped in four fathoms water, in good holding ground of stiff clay and mud.

"N. B.-The south channel is unnavigable, its north end being filled up, having but 24 fathoms of water at half flood, and extremely narrow.

"Harbor-master's office, Port Philip, June 26, 1840."

WESTERLY ENTRANCE OF THE RIVER WESER.

The following translation of a notice to mariners has been transmitted to the Department of State, by the United States Consul at Bremen. It is dated at Oldenburg, December 24th, 1840, and signed by the Grand Ducal Oldenburg Government of the Duchy of Oldenburg :

"On the island of Wangeroog, at the westerly entrance of the river Weser, the state of the navigation of said river in regard to ice will be signalized to mariners as correctly as the same can be ascertained there, in the following manner.

1. A ball of about 44 feet diameter, affixed to a pole or staff projecting about 25 feet out of the west side of the church steeple of Wangeroog, and about 125 feet above the surface of the sea, signifies that floating ice is in the Weser, and that great precaution must be taken on entering the same, but, with a fair wind and other favorable circumstances, it is practicable to reach Bremerhaven or Fedderwarden; namely, the former with a fresh breeze from east to northeast, and Fedderwarden with the like wind from the northwest to west southwest.

2. Two balls hanging perpendicularly under each other at a distance of 6 feet, signify that a large quantity of floating ice is in the Weser, that the light vessels have left their stations, Bremerhaven cannot be reached, and therefore the entering of the Weser ought not to be attempted.

Said signals can best be seen from on board of a vessel when bearing south southeast to southwest by south, by compass.

LIGHT ON CARYSFORDS REEF.

It is stated on good authority that the light on Carysfords Reef, on the eastern coast of Florida, is not correctly laid down on all of the charts, some of them placing it eighteen miles out of the way. Mr. Bacon, the American consul at the port of Nassau, New Providence, has been furnished by Commander Barrett, of her Britannic majesty's surveying. ship Thunder, with a statement of the exact position of this light, as follows, viz :—latitude 25 deg. 12 min. north; longitude 80 deg. 16 min. 20 sec. west.

Owing to this error in the existing charts, one of the Philadelphia packets, while lately passing the reef, was nearly lost.

STATISTICS OF AGRICULTURE.

LIVE STOCK OF THE STATE OF NEW YORK.

1. A Table, showing the number of horses and mules, neat cattle, sheep, swine, and esti mated value of poultry of all kinds, in each county of the state, as ascertained by the census of 1840.

CEREAL GRAINS PRODUCED IN THE STATE OF NEW YORK. 2. A Table, showing the number of bushels of wheat, barley, oats, rye, buckwheat, and Indian corn, produced in the state of New York, as ascertained by the census of 1840; from official documents.

COUNTIES.

Bushels of Bush, of Buckwheat. Ind. corn.

Oats.

Rye.