September 3, 1915. THE COLLIERY GUARDIAN. 477 TlTanted, Works for Dismantling, Plant ▼ V no longer required, boilers, tanks, machinery, &c., for prompt cash.—Write to E. J. WEBSTER, 119, Bow-road, London, E. J. W. BAIRD AND COMPANY, PITWOOD IMPORTERS, WEST HARTLEPOOL, TBABLT CONTRACTS BNTBBBD INTO WITH COLMBBIBS. OSBECK & COMPANY LIMITED, PIT-TIMBER MERCHANTS, NEWCASTLE-ON-TYNE. SUPPLY ALL KINDS OF COLLIERY TIMBER. Telegrams—“ Osbecks, Newcastle-on-Tyne.” *** For other Miscellaneous Advertisements see Last White Page. (MUnj Guardian AND Journal of tho Coal and Iron Trades. Joint Editors— J. V. ELSDEN, D.Sc. (Bond.), F.G.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. LONDON, FRIDAY, SEPTEMBER 3, 1915. At the conference held on the 2nd inst. at the Home Office, which was attended by representatives of coal owners and miners from all districts of the country, and was presided over by Sir Richard Redmayne, K.C.B., H.M. Chief Inspector of Mines, there was considerable difference of opinion amongst the representatives of the owners as to the desira- bility of interfering with the Eight Hours Act, and objection was also taken by the representatives of the miners to any interference at the present time in view of the efforts being made to secure greater regularity of work and less absenteeism on the part of the miners. Mr. Smillie, dhe president of the Miners’ Federation, stated on behalf of the miners that if their efforts to secure a better attendance at work failed, the question could be considered at a later date if it were found to be necessary. It was decided to leave the matter in abeyance for the time being. The London coal trade for the past week has responded somewhat to the colder weather, and the house coal trade has improved. Very little free coal, however, is offering. Steam, coals are firm, and coke also has strengthened. All colliery prices are fully maintained, but the official legal price is gaining ground. In the seaborne market there is little change. Vessels are coming forward with greater regularity. Acute scarcity of tonnage and a consequent leap in freights, combined with licence difficulties, have been responsible for much damage to coal business during the past week. The prompt markets on the Tyne and Wear are very dull owing to these factors, buyers generally declining to transact in the hope of obtaining more favourable terms later; those buyers commanding prompt shipment are able to secure at cheaper values. The moderate character of the Lancashire market remains unchanged. Trade in the Yorkshire markets has been of a quiet nature, the London business being comparatively small. Traffic delays are still a cause of complaint, but the output has improved. General dulness characterises the Derbyshire market, and supplies are easily equal to the demand. The labour situation of South Wales being so uncertain, it was only natural that the Cardiff market should be dis- turbed. Buyers refused to negotiate, and chartering was reduced to a minimum. The Scottish coal trade also experienced a slack period, and values show a tendency to decline. The autumn meeting of the Iron and Steel Institute will be opened on Thursday, the 23rd inst. The strike which recently broke out in the Charleroi coal field has now been settled. It has been unofficially stated that exports of coal to Sweden will be very much more restricted in the future. A circular has been issued by the Board of Trade advising London merchants and householders to accumulate stocks of coal for the approaching winter. The special committee of the Glasgow Corporation which is considering the question of domestic coal prices, met yesterday (Thursday) and received evidence from local merchants. Parliamentary sanction is to be sought by the Cardiff Railway Company to proceed with the scheme for increasing the shipping accommodation at the Cardiff docks. Sir George Askwith has awarded the Scottish miners an increase of 6| per cent, on the 1888 standard. Mr. Asquith has refused the Northumberland miners’ contention that they are entitled to an advance of 11 per cent, in wages under the sliding- scale system in addition to the war bonus. The men’s leaders are requesting a meeting with the owners on the matter. Difficulties in South Yorkshire with regard to the interpretation of the agreement establishing the Conciliation Board, more particularly as to the percentage advances to boys and day-wage men, have now been overcome. Happily the dispute in the South Wales area has now been settled, but not before several thousands of men had “ downed tools.” The owners have granted the miners’ requests regarding the bonus turn to all nightmen, and also made concessions with reference to retrospective payment of advances. A Board of Trade White Paper has been issued showing that the coal production of the United Kingdom during the half-year ended June 30 last had declined by 12,448,000 tons as compared with the corresponding period last year. The respective figures were 127,826,000 tons and 125,369,000 tons. The exports during the half-year totalled 23,595,000 tons, as against 26,068,000 tons in the first half of 1914. As the result of an accident which occurred yesterday at the Donisthorpe Pit, Burton-on-Trent, caused by cages fouling each other when 150 yds. down the shaft, one life was lost and 13 men and boys were injured. If there is one subject that is taboo Oil V. Coal, it is the Navy’s fuel supply, but it is divulging no great secret when we say that the war, so far as it has gone, has given rise to some surprising results in. this direction. Considering that Galicia has been one of the cockpits of the war, that the output from the Baku region has been unattainable, and that chaos has ruled throughout the war in Mexico, it is indeed wonderful that this country has never been short of oil. Indeed, we have seen the collapse of some of the low- temperature distillation processes, although a naval war might be said to be the event upon which their promoters had gambled. The credit for bringing about this situation has been largely due to Mr. Churchill, who had the foresight, even before the war cloud appeared on the horizon, to accumulate large stocks of oil for naval uses. At this juncture, as we have said, it is impos- sible to do more than conjecture as to the results obtained in actual warfare with oil as compared with coal; oil is recognised as the staple diet of the mosquito craft, which have so far had the lion’s share of the mobile fighting to do. All we know is that in the Falkland Islands expedition some of our cruisers ran perilously short of fuel, the heroic “ Kent” having to get her fightingspeed by burning her wooden furniture. But, although the South Wales Admiralty pits have not by any means been put out of business by oil, it is a fair inference to gather that the latter has proved itself invaluable for naval purposes. Sir Marcus Samuel, at the recent meeting of the “Shell” Company, said it was inconceivable that after the war the Navy would ever revert to the use of coal. He gave as his reason the advantage obtained in the saving of life effected by the elimination of stokers. On the other hand, some of the incidents of the present war, in which the advantages of heavy fire, have been fully proven, show that the inflammability of oil is a danger seriously to be reckoned with. For this reason we turn with no little interest to Dr. David T. Dayt’s report to the United States Geological Survey on the production of petroleum in 1913. From the time that Admiral Metcalfe pub- lished his memoir more than a dozen years ago, it has been obvious that the American naval authorities, to whom are available abundant supplies of oil fuel, have always been apprehensive of the dangers attendant upon the use of oil for naval purposes. Nevertheless, this period of hesitancy seems to have been passed, for the present policy of the United States is to use oil exclusively as a fuel in all new battleships and torpedo vessels, andin the fiscal year ended June 30, 1913, the Navy used something over 21,000,000 gals, of fuel oil. The question of price, however, which is a smaller consideration to a Government than to a private consumer, has militated to some extent against the increased use of oil. For this reason it has been proposed to construct a State-owned pipe-line from the mid-continental field to the Gulf of Mexico for the purpose of supplying fuel for the American Navy, and the Navy Department in 1914 carried out experiments with a view to making naval specifications for fuel oil less strict in order to get an oil at a cheaper price. Dr. Day gives some interesting information relating to the minimum flash points for fuel oils for naval use as fixed in different countries. Some two years ago a Navy Board recommended the reduction of the flash point in the case of oil for the use of the United States battleships, which, as in the British Navy, had previously been limited to 175degs. Fahr. In arriving at a reduction in the flash point to 150 degs. Fahr., the Navy Board carried out some interesting investigations bearing upon the viscosity of oils and their pumping capacity. A highly viscous oil must be heated in the bunkers in order to enable the pumps to deliver it at the rate required for full- speed steaming. But it would clearly be undesirable to heat the oil to the point at which an inflammable vapour is given off. Thus the problem to be deter- mined was two-fold—viz., (1) the investigation of the viscosity curves of oil at different temperatures, and (2) the ignition temperature of the vapour at these temperatures. It was found that practically no dangerous amount of inflammable gas is given off until the oil is heated to its flash point as determined by the Abel or Pennsky-Martin test. Now few, if any, of the fuel oils now on the market have so high a viscosity as to require heating in bunkers above 105 degs. Fahr. Consequently a minimum flash point of 150 degs. Fahr, appears to provide an adequate factor of safety for any known oil. It. is necessary, however, to provide against the use of an oil having both a high viscosity and a comparatively low flash point. It might in such a case be necessary to heat the oil to a temperature dangerously near its flash point to reduce its viscosity to the requisite standard. It is, therefore, recommended that the minimum flash point shall not be lower than that temperature at which the oil has a viscosity of 8 by the Engler scale, water at 70 degs. Fahr, being the unit. This critical viscosity is reached by many commercial oils at temperatures far below the flash point; but some comparatively low-flash oils, such as the Texas Com- pany’s Mexican crude oil, with a flash point at 126 degs. Fahr., do not reach the critical viscosity until a far higher temperature than 150 degs. Fahr, is reached. The United States has been the first country to reduce the minimum flash point for naval fuel oil to so low a temperature as 150 degs. Fahr. The flash point figures for other navies are stated by Dr. Day to be 248 degs. Fahr, for Austria, 212 degs. Fahr, for Russia and Italy, 200 degs. Fahr, for France, and 187 degs. Fahr, for Germany. A large part of Dr. Day’s report deals with statistics of production of fuel oil in the United States and throughout the world. In this connection it is note- worthy that the world’s total production of crude petroleum for the year 1913 was 381,538,916 barrels of 42 gallons. The steady increase of output year by year goes far to confirm the conclusions of the Royal Commission in their first interim report to the effect that the oil resources of the world are amply adequate to meet all naval requirements in this country if suitable measures are taken to secure supplies. The most obvious of these measures is to accumulate stocks, and we know that the British Admiralty has made full provision by this means for some years ahead. Oil lends itself to storage better than coal in every way, and it is fortunate that this is the case, for the production of oil can