in conjunction with Colonel Michell determined upon the site of a lighthouse ro be erected on Agulhas point, the position of which is about 35 feet above the level of the sea, 340 yards from the extreme point of Agulhas, and 200 yards due north of high water mark, and we recommend that the face of the building should be painted with white and red stripes alternately, that it may be more easily seen by day in a fog or mist. MEACOCK'S PATENT FOR THE PREVENTION OF SPONTANEOUS COMBUSTION, and extinguishing of Fire in Vessels carrying Coals. During the last few days a model of the above has been placed in the Captain's room at Lloyd's. The apparatus is extremely simple, consisting merely of layers of perforated tubes placed fore and aft on the coals at certain periods of the loading, and communicating with the hatchways by upright pipes; the gas, generated by the coals, finds escape through these tubes, and passes off to the atmosphere, thereby removing the cause of fire, and keeping the cargo perfectly cool. In a large ship fitted with the apparatus a short time ago, the escape of gas was plainly perceptible, and after the apparatus had been laid down for two or three days, the temperature of the cargo was reduced to two degrees below that of the between decks, and in the course of a week after, it was brought down to five degrees; thus shewing the efficiency of the apparatus. In case of fire however, (but which is almost impossible) the means used to extinguish it are most effectual, by merely pouring water down the pipes at the hatchways, which, passing through the perforations, distributes itself over the whole cargo. This in itself, is well worthy of attention. The loss of property (and at the same time of life) has of late been immense, and we therefore hope the matter will meet with the earnest attention of all parties concerned, as it is richly deserving of it. Tower Chambers, Liverpool, July 1st, 1848. I beg respectfully to apprise you that I have received the appointment of Agent for the supply of Meacock's Patent Apparatus for the prevention of Spontaneous Combustion and extinguishing of fires in vessels carrying coals. The apparatus which is most simple in construction, is applicable to vessels of all sizes, and can be fitted with little or no loss of time or stowage by the porters loading the cargo. The expense is very moderate the apparatus being supplied at the manufacturer's prime cost, with a patent right of 6d. per ton on the cargo. As a stock is now constantly on hand at the Manufactory the apparatus can be supplied at once. Trusting to be favoured with an order for any of your vessels requiring the apparatus. I remain, &c. R. IRONSON. GREAT CIRCLE TABLES.-We stated in our last that a second Edition of Mr. Towson's Tables for Great Circle Sailing had been published by the Admiralty. Subsequently to the first edition Mr. T. communicated a method by which the Tables may be applied to the computation of Azimuths; and also added directions for making the Tables still useful, should the Linear Index be lost or rendered unserviceable. In order that purchasers of the first edition may derive the benefit of the improvements in the later one, an extract from the latter containing the above additions has been printed, and which will be delivered gratis to such parties, on application to the Agent, or Sub Agents for the sale of the Admiralty Charts. A List of all the Masters and Mates in the Merchant Service, who have voluntarily passed an examination, and obtained Certificates of Qualification for the Class against each assigned, under the Regulations issued by the Board of Trade, between June 1st, and the 31st July. (as mate) G. W. Barton 3rd 34 Lady Fitzherbert, 386 272664 London 34231 London June, 1st 1st 3906 London 1st 1st London London 1st 3rd 325457 London 6th 23134 London L. T. Fillan W. A. Elder G. W. Slorach S. Howes C. Cockburn T. Coe 8th H. Neatby 2nd 22 Elizabeth Ainslie, 495 391670 London 2nd 25 Dominica, 381 tons. 36113 London 3rd 32 Conquering Hero, 319 89051 London tons 3rd 41 Arabella, 275 tons..... 377054 London (as mate) C. Williamson 3rd 26 Pilgrim, 181 tons ...... 16531 S. Shields 2nd 43 Agincourt, 669 tons... ... (as mate) N. Thomas 2nd 54 John Pink, 293 tons... A. Rousby 2nd 26 Franyee Cawasjee, 950 W. Darby 2nd 44 Louisa Campbell, 287 (as serman) W. Chandler, E. Tride J. W. Harman 3rd 19 John Hullett, 300 tons 48673 London 3rd 20 Penyard Park,377tons 328903 London 2nd 31 Boyne, 620 tons..... 17th (as seaman) 18th 31629 London 25th W. George 3rd 27 Planter, 347 tons 25021 London - 27th (as seaman) HER MAJESTY'S SHIPS IN COMMISSION; With their Stations and Dates of Commission of Officers in Command. [EXPLANATION.-st.-sh. sleam-ship, h. p. horse-power, t. tons, c. crew, b. built ] SAILING VESSELS. Agincourt, 72, t. 1747, c 416, b. 1817, Captain W. B. Mends, 1814, Devonport; Alarm, 26, t. 910, c. 240, b. 1845, Capt in G. G. Loch, 1841, West Indies; Albatross, 12, t. 484, c. 130, b. 1841, Commander A. Farquhar, 1844, East Indies; Alert, 6, t. 358, c. 80, b. 1835, Commander H. Dunlop, 1842; coast of Africa; Alligator, 26, t 500. b. 1821, Hospital-ship, Hong Kong. Amphitrite, 26, t. 1064, c. 195, b. 1816, Captain T. R. Eden, 1841, coast of Africa; Andronache, 26, st.-sh., t. 717, c. 30, b. 1832, Master T. Johnson, 1803, Galway; Andromeda, 44, st.-sh., t. 1215, c. 60, b. 1829, Master R. Thompson, Killibegs; Arab, 16, t. 481, c. 130, b. 1847, Commander W. Morris, 1846, Cape of Good Hope; Asia, 84, t. 2289, c. 750, b. 1824, Rear Admiral P. Hornby 1840, Captain R. F. Stopford, Pacific; Astrea, 44, st.-sh, t. 956, b. 1810, Master W. Yeames, 1810, Falmouth; Atholl, 2, tr.-sh., t. 503 b. 1820, Master Pearn, 1827, particular service. Belleisle, 24, tr.sh., t. 1709, b. 1819, Captain J. Kingcome, 1838, on her passage to Plymouth; Bellerophon, 78, t. 2056, c. 650, b. 1818, Captain R. L. |