The following communication has been received at Lloyd's:-

"Colonial Land and Emigration Office, 9, Park-street, Westminster, January 13.

Sir, I am directed by the Colonial Land and Emigration Commissioners to transmit to you the enclosed communication, respecting the results of the survey of an important part of the coast of New South Wales, by Her Majesty's sloop Beagle, &c. (Signed) S. Walcott, Secretary.' ----

" Her Majesty's sloop Beagle, Hobart Town. March 14, 1843. The portion of Bass's Straits surveyed by Her Majesty's sloop Beagle, and the Government cutter Vansittart, during the last year, are as follows :-

From sixteen miles eastward of Corner Inlet to Western Port on its northern shore, and

from Cape Portland to Circular Head on the south, with the islands occupying the greater part of the eastern entrance between Wilson's Promontory and Cape Portland.

Corner Inlet was found to be navigable for vessels drawing fourteen feet, and the eastern side of Wilson Promontory to abound with good anchorage in westerly winds ; but the most important part of the survey has been that of making known the numerous anchorages among the islets fronting the western shore of Flinder's Island, and that the eastern entrance of the strait between Craggy and Flinder's Islands is free from danger. The only dangers in that part of the strait are Endeavour Reef and Beagle Rock. The knowledge of a clear passage between Craggy and Flinder's Islands, and of the anchorages in the western aide of the latter, is of great importance to the commercial interests of the two colonies : for many vessels have been driven past Port Dalrymple in westerly gales, and wrecked on the western shores of Flinder's Island, in consequence of not knowing where to run for an anchorage. A very useful anchorage will be found on the east side of Hummock Island in four or five fathoms; and that island may be easily known by its three remarkable hummocks on the extremes and centre, which, when first seen, give it the appearance of three separate islands. Vessels may reach the anchorage by either passing round the northern or southern end. The latter is most convenient, as the anchorage is close to it. The tides are strong among the islands fronting Flinder's Island. Vessels approaching Hummock Island from the northward should keep a good look out for a rocky patch about a mile off the north-west point of Flinder's Island on the south line of the strait. From C. Portland to Circular Head, a distance of 130 miles, there are only three anchorages, Waterhouse Island, Fort Dalrymple, and Emu Bay. The latter and former are safe only in westerly winds. A good look out should be kept in passing inside Ninth Island, as the shore fronting it has several outlying rocks off it. J. L. STOKES."

Anchorages off Swan River, Western Australia.-Cockburn Sound. Four large cask buoys have lately been laid down to mark the channel in Cockburn Sound between Garden Island and Carnac, viz, two on the south side of the channel, painted black, near the Challenger and Stags Rocks ; and two on the north side, painted white, near the Middle Bank and Flat Ledge. The fair channel, in four to six fathoms water, lies between the black and white buoys. The Challenger buoy is laid down in six fathoms, half a cable's length from the N.E. extremity of the rock; the Middle Bank buoy is in four and a half fathoms on the western edge of the bank; the Flat Ledge buoy is placed outside the two outermost rocks of that small reef, one of which has nine feet water on it and the other three fathoms; and the Stags buoys is 6 fathoms on the N.E. extremity of its reef.

Gage's Road.-

A large cask buoy, painted black, has been moored in 3 fathoms water about 3 cables length N.W. by N. from Scott's Ledge, on the northern edge of Success Bank. The reef is narrow, and about a quarter of a mile in length east and west, with 9 feet water on its rocky ridge. The buoy is in a line between the Mewstone Rock and the north extremity of Rous's Head, at the entrance of Swan River, at 1� miles from the Rock, and 3 miles from the Head, and should be passed on its north side.

Hall's Bank, a small patch of 3� fathoms, recently discovered in H.M.S. Beagle, should be avoided by a ship of heavy draft of water standing into Gage's Road from the northward. It lies 1� miles off the mainland, and bears from the flag-staff on Arthur's Head magnetic N. 37� W., and S. 49� W. from the white sand-patch to the northward, having 8 and 9 fathoms water close to it all round. The best anchorage in Gage's Road is in 6 or 7 fathoms water, a mile from Arthur's Head, with Scott's wooden jetty in South Bay just on with the south extremity of the Head (E. � N. by compass), and south end of Rous's Head on with the north extremity of a low sandy point of land within the entrance to Swan River. Nearer to the shore the bottom is rocky.-Swan River Government Gazette.