May 8, 1914. THE COLLIERY GUARDIAN. 1017 Portable Steam Hoist, by Dunlop Bell, cylinders 7in. by lOin. stroke, lift 4 tons direct off barrel, boiler insured for 1001b. w.p., on wheels: smaller ditto, 6in. by 10in.; sale or hire. —C. F. DAVIS, 18, Billiter-buildings, London, E.C. or Sale, 200/250 New Specification ten- ton WAGONS, for immediate delivery.—Apply, Bos 5658, Colliery Guardian Office, 30 & 31, Furnival-street, Holborn, London, E.C. TUBES & FITT^GS, IRON AND STEEL. Tubes Cor Gas, Water, Steam, and Compressed Air. Electric Tramway Poles, Pit Props, High. Pressure Steam Mains, &o> JOHN SPEUGM LTD., Globe Tuba Works, Wednesettkt J. W. BAIRD AND COMPANY PITWOOD IMPOBTBES, WEST HARTLEPOOL, TRAB.LT COKTBACTS BNTHB.ED UNTO WITH COLLIXBIBB. OSBECK & COMPANY LIMITED, PIT-TIMBER MERCHANTS, NBWOA8TLE-ON-TINE. SUPPLY ALL KINDS OF COLLIERY TIMBER,. TeLKGEAMS—*° OSBSOKa, NaWOABTLX-OK'-TYH-g!,” *3* For other Miscellaneous Advertisements see Last Whiii Page. AND Journal of tha Coal and Iron Trades. Joint Editors— J. V. ELSDEN, D.Sc. (Loud.), F.G.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. LONDON, FRIDAY. NAY 8, 1914. During April 5,445,728 tons of coal, coke and manufactured fuel were exported from the United Kingdom, of a value of £3,744,643, as compared with 6,605,214 tons, valued at £4,670,153, in April 1913, and 1,527,508 tons, valued at £1,005,298, in April 1912. The total of exports for the first four completed months of the year was 23,680,027 tons, valued at £16,482,705, as against 24,633,615 tons, valued at £17,026,192, and 14,651,035 tons, valued at £9,175,088, in the corresponding periods respectively of 1913 and 1912. Lord Merthyr contradicts the rumour of his resignation from his official association with the Bute interests in Cardiff, to which reference is made on page 1025 of this issue. The London coal market shows no change with regard to the demand for either household or manu- facturing qualities. The market is very depressed and prices are falling. Stocks are accumulating in every direction. On the Tyne, the prompt market has been alter- nately active and quiet during the past week ; whilst on the Wear it was fairly steady. Both in Lanca- shire and Yorkshire there is an easy tone. In Derbyshire, while most descriptions maintain their strength, there has been a gradual weakening in the demand for house coal. Quietness characterises the Cardiff coal market, owing to restrictions of output. The Scottish coal trade has been steady. The formal proceedings in the case of the prosecu- tion by the Home Office of the Lewis-Merthyr Consolidated Collieries Limited, owners of the Universal Colliery, Senghenydd, and of Mr. Shaw, the manager, were opened at the Caerphilly Police- court on Tuesday, and adjourned sine die. There are 21 indictments, four against the company and 17 against the manager. The ninth annual conference of the Baltic and White Sea shipowners was opened in London’on Wednesday. Mr. W. I. Noble, in his presidential address, dealt with the scheme for the lajdng-up of freights. The annual meeting of the National Association of Colliery Managers will be held at Newcastle on Thursday next. In the King’s Bench on Wednesday the appeal of Laws v. the Consett Iron Company, from the decision of magistrates at Durham, was dismissed. The company had succeeded in obtaining damages against Laws and others for alleged breach of contract, and the present case involved the right of the magistrates to decide under the Employer and Workmen Act, 1875. The question as to*whether certain 1 i cavilling ’ ’ rules afforded protection to the men was also raised. The Kailway and Canal Commissioners on Monday gave judgment in the test cases brought by a number of traders against the Great Eastern, Midland, and London and North-Western railway companies affecting railway rates to Manchester, Sheffield, Liverpool, Swansea, Plymouth, York, &c. The Commissioners decided in favour of the railway companies. The annual meeting of the Northumberland Miners’ Council commences on Saturday, 16th inst. The Durham Coal Trade Conciliation Board has decided that miners’ wages in the county shall be reduced by 2| per cent. Owing to the trade in house coal slackening in the Dean Forest district, it has been decided to reduce the price of fuel Is. a ton, and the wages of the men 5 per cent. The steam coal workmen also suffer the same reduction. A resolution demanding the nationalisation of mines and minerals, introduced by Mr. ,E. Smillie, was passed by the Scottish Trade Union Congress last week. The council of the South Wales Miners’Federation will re-consider on Saturday the request of the banksmen to hand in notices. The miners on strike in the Ebbw Vale, some 6,000, have decided to return to work pending negotiations. The dispute was due to the abnormal places question and alleged breaches of the Minimum Wage Act. A meeting of the members of the Manchester Geological and Mining Society will be held at Queen’s Chambers, 5, John Dalton-street, Man- chester, on Tuesday next, at 4 p.m., when the following paper will be read :—“ Modern Develop- ments in Hydraulic Stowing, and Suggestions for Application of same in British Collieries,” by Mr. J. Drummond Paton. The council will meet on the same day at 3 p.m. The report on the electricity supply London’s of London, which has been prepared Electricity for the London County Council by Supply and Messrs. Merz and McLellan, is a the Coal voluminous and interesting docu- Trade. ment. If it is inconclusive, the reasons may be sought for in the complexity of the problem, from both an engineering and a financial standpoint. At the present time there are in the London area no less than 65 autho- rities—apart from traction undertakings—supplying electricity from 70 generating stations upon 49 different systems, and using as many as 585 engines. Many of these were designed for needs that have outstripped them, and in these days, when the economy of large units is fully recognised, the disadvantage of employing separate units so low as 50-horse power must be obvious. In seeking to put the house in order, however, there are several points that must be duly considered. In the first place, there is the question of proprietor- ship, the appeasement of monopolies, and the safe- guarding of public interests, with a keen memory of Water Board finance ; this is a matter rather for the politician and the accountant, and Messsrs. Merz and McLellan wisely say very little about it. Once again, there is the cost of the change ; two possible ways of effecting important economies in the pro- duction of electricity in London are considered: (1) the extension of eight or 10 of the best existing generating stations and the gradual abandonment of the others; and (2) the gradual concentration of production of electricity for all purposes on sites down the river and well away from the centre of the city. The latter alternative is approved, but it would mean scrapping at least £8,000,000 worth of plant and machinery, much of it good and efficient, and a further initial outlay of from six to seven millions. How is this large expenditure to be compensated for ? Not by achieving ideals of mechanical efficiency, for these do not always pay in practice. What is a thing of beauty to the engineer, is not always a constant joy to the shareholder or ratepayer. Having discounted all the economies in production due to centralisation, the lessened fuel cost, &c., it is recognised that the development of the demand on lines favourable to such an undertaking is essential. This means an improvement of the diversity and load factors, the importance of which Mr. Merz has done more than anyone else in this country to enunciate. But here we come to the very special character of the problem as it affects London, which, as the report observes, is “ the largest urban community in the world.” London, however, whilst its domestic needs are enormous, has no heavy industries to fall back upon, high rents, rates and wages having combined to banish all such enter- prises from the Thames. Thus there is no analogy to be derived from the power schemes that have been so successfully developed in the North of England and elsewhere; these have either had the advantage of an abundance of power in the first instance, or the custom of great industries working under a steady load, which have themselves been able to contribute their quota of prime energy ; so that both classes of undertaking stand very much on the same footing. It is fully realised to-day that the waste heat station is a prime factor in the success of the North of England scheme and some of those which have come into being on the Continent. The electricity supply of London can only be to a small extent regenerative. Messrs. Merz and McLellan apparently look for their improved load factor to the domestic user ; they anticipate that there will, in the near future, be a demand for current equal to more than 20 times the present output of the lighting undertakings, if the price charged for current can be reduced to a sufficiently low figure, the increase being derived mainly from the use of cooking and heating appliances. The report here is not very convincing ; it is not clear that this branch of service would materially improve the existing load factor, and it is very doubtful whether the public will accept these amenities with enthusiasm. As the Engineer remarks : The use of the gas fire is by no means universal, and it has made progress more by the enormous exertions of the gas companies than by any spon- taneous desire on the part of the public. But would those who use it give it up readily for something untried? We doubt it, unless the electricity supply 4i board,” or whatever it may be called, finds itself in a position to sell current at a rate that would compete with the equivalent price of gas, not as it now is, but as it will be when threatened with competition. For public lighting purposes, gas has before now been 44 beaten to the world,” only to rise phoenix-like from the ashes; and there is still much prejudice for the open grate. The matter is naturally one that affects the coal trade. In 1912, 16,083,198 tons of coal were brought to London (7,894,780 tons by rail, 29,686 tons by canal, and 8,158,732 tons by sea), and owing to the strike the total was some 1J million tons below the total for 1911. If we include the whole of the riverside area, the imports would be materially increased. The realisation of this proj ect would, of course, make very little difference to the coal trade in the long run, for coal would still be necessary. It may be observed that the authors of the report advocate that the central generating station should be located a long way down the river, chiefly because of the lower cost of fuel. They have even given consideration to the possibility of genera- tion on the coalfields, and of locating the station near the Kent coalfields. It is pointed out quite justly, however, that there is a point at which increased transmission costs absorb any saving in carriage, except for loads at high-load factor. It is not quite clear what type of generator is designed; when a similar project was thrown out by Parliament some years ago, the use of huge turbo-generators was predicated, and the abundance of water to be obtained from a site at Barking was urged as one of the principal advantages of the scheme. Now, how- ever, Messrs. Merz and McLellan speak of the possibility of by-product recovery, which seems to indicate the use of gas engines. Hitherto, however, the employment of internal-combustion engines for driving dynamos of high capacity has been beset with many difficulties of a mechanical nature. Without entering further into these rather inchoate subjects, it may be remarked that in some ways the scheme has very positive advantages. In these days of general strikes, increased facilities for coal storage