THOMAS POWELL’S

DUFFKYN STEAM COAL,

CARDIFF, SOUTH WALES,

It is now universally admitted that the description of Fuel best suited for Steamers should possessthe following properties, viz. :—

1. The power of evolving heat of great intensity with flame,

2. Great economy in consumption.

3. High specific gravity.

4. Freedom from smoke and clinkers.

5. The non-liability to spontaneous combustion.

All these requisites are combined in “ Powell’s Duffryn Steam Coal,” which has been provedto be unrivalled for Marine Boilers of any description ; but especially for Tubular Boilers, for whichit is particularly adapted.

Its economy is so great, that a saving of 30 per cent, will be found where Newcastle or Scotch Coalis used, and from 15 to 20 per cent, over Steam Coal shipped at Newport, Monmouthshire, or anyPorts in South Wales.

Dr. Ure, the celebrated Chemist, having analysed this Coal, describes it as the most valuableof the vast variety which had come under his notice : his report is annexed.

“ Powell’s Duffryn Steam Coal” is highly approved by the British and Foreign Govern-ments, and is used in their Naval Steamers. A letter from the Storekeeper-General of theAdmiralty, London, will be found herewith ; also testimonials from some of the principal SteamNavigation Companies in the Kingdom.

The specific gravity of this Fuel being unusually high, the same weight of Coal occupies muchless space than any other, which, added to its great durability, causes it to be much valued forSteamers going long voyages. It is also hard and compact, and is found to lose little or none of itseffective power in transit to hot climates, or on exposure to the influence of the atmosphere ; it isconsequently in great demand for shipment to the West Indies, South America, and other distantparts of the world. The Atlantic Steam Ships are supplied with this Coal, viz. :—The British andNorth American Steam Navigation Company’s Flotilla, the United States Mail Steamers (Collins’sLine), &c. &c. Certificates of its quality when used in the Steam Ships “ Pacific ” and “ Atlantic ”are given. Captain Hosken, of the “ Great Britain,” and Captain Matthews, of the “ GreatWestern,” both write in the highest terms of this Fuel : their reports are also annexed.

The Lords Commissioners of the Admiralty, being convinced of the vast importance ofascertaining the comparative usefulness of the various descriptions of Coal in the Provinces of GreatBritain, with a view to their consumption in our Naval Steamers, directed experiments to be madeon a very extensive scale, at the Museum of Practical Geology, London, by Sir II. de la Beche,Dr. Playfair, &c., the reports of which have been presented to both Houses of Parliament bycommand of Her Majesty.

The DUFFRYN COAL has been proved to be of the BEST description for consumption in SteamVessels, as respects economical combustion, the absence of clinker and smoke, and other importantconsiderations, which will be found on reference to the Extracts from the Report on the next page.

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