April 19, 1918. THE COLLIERY GUARDIAN. 801 Second Edition. In Crown 8vo. Cloth. Illustrated. 12s. 6d. net. A Dictionary of Spanish-English and Spanish-American Metallurgical and Allied Terms. By EDWARD HALSE, A.B.S.M. Third Edition. In Pocket Size. Leather. 3s. 6d. net. The Mining Engineers’ Report Book, and Directors’ and Shareholders’ Guide to Mining Reports. By EDWIN R. FIELD, M.Inst.M.M. In Medium 8vo. Cloth. Pp. i.-v. + 62. With many Illustrations in the Text. Four Full Page Plates and Four Folding Tables. 7s. 6d. net. New Method of Testing Explosives. By C. E. BICHEL. Translated and Edited by ALEX. LARSSEN, M.Inst.C.E. LONDON : CHAS. GRIFFIN & CO. LTD., Exeter St., Strand, W.C. 2. J. W. BAIRD AND COMPANY, PITWOOD IMPORTERS, WEST HARTLEPOOL. YEARLY CONTRACTS ENTERED INTO WITH COLLIERIES. 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. AND Journal of the Coal and Iron Trades. Joint Editors— 5. V. ELSDEN, D.Sc. (Lond.), F.G.S. HUBERT GREENWELL, F.S.S., Assoc.M.I.M.E. (At present on Active Service). LONDON, FRIDAY, APRIL 19, 1918. The London market has been somewhat short of inland coal during the week, and the stocks in hand have in many cases suffered. House coals, however, are arriving freely. A strong enquiry is reported on the Tyne and Wear, and tonnage is waiting for steam coal. Durham coals are in brisk demand. The quotations are the official ones. In Lancashire, the pressure for house coal is still strong. Supplies of industrial fuel are about equal to demand. In Yorkshire, the supplies are reduced, owing to the comb-out, and few surplus lots are obtainable. Coal production in South Wales is up to the average, and while this continues Admiralty contractors are inclined to disregard the allocation scheme. Every effort is made to get coal away for Government purposes. The collieries in Scotland have had the benefit of a slight increase of tonnage, and the market tone is good. Stagnation continues in the freight market. Enquiries from neutral ports are pressing, but unavailing. Allocations for .French ports are pro- ceeding steadily. The Coal Controller notifies that all coal contracts (export or bunkers) must be limited to three months from the first of the month following the date of contract. A new Recertification Order has been issued, for the purpose of recruiting a further 50,000 men from the collieries. Recruiting under this Order will begin on May 1, and will be carried out, as far as possible, on the same lines as those already in operation. The Board of Trade is empowered by a new Defence of the Realm Regulation to authorise any person to work any unworked seam of coal in or near any open mine. The March exports of coal, coke and manufactured fuel totalled 2,638,828 tons, compared with 3,025,442 tons in March last year, and 3,281,793 tons in March 1916. The University of Illinois has just Percentage issued another of those valuable Of Extrac- monographs which have resulted tion Of Coal from the activities of the Engineering Seams, Experiment Station at Urbana. The work which is being conducted in that establishment, although referring more particu- larly to Illinois conditions, is of general interest to all who are concerned in mining research. This last bulletin deals with the percentage of extraction of bituminous coal. It is a subject which is also being investigated by a committee appointed by the Home Office in Great Britain—appointed for the purpose of investigating the losses of coal which take place in underground working. These losses arise from various causes, amongst which may be mentioned waterlogging, the physical conditions of the seams, barriers and areas left for support of public or private property. A great deal of evidence upon this subject was taken in this country by the Royal Com- mission on Coal Supplies; but since that enquiry took place the matter has assumed increased import- ance, owing to the greatly enhanced value of coal and the wider scope for utilising inferior kinds. Thus, the loss of coal from avoidable causes has become far more serious than it was in 1905, when the Royal Commission issued its report. The result of this enquiry led the Royal Commis- sion to the conclusion that the ordinary and unavoid- able loss in British mines was about 10 per cent., although under certain conditions, such as the crushing of pillars, the unavoidable waste might sometimes amount to as much as 40 per cent., and in the undersea workings in Cumberland as much as 75 per cent, of the coal is sometimes left behind. Exactly what percentage of coal is lost by wasteful working is, of course, not accurately known. The author of the Illinois bulletin, Prof. C. M. Young, finds reason for believing that in America, for every ton of coal extracted, an equal quantity has been left behind. This low percentage of recovery is ascribed to economic conditions and to efforts to produce cheap coal. It is probably equally true that in Great Britain, in the early days of mining, the methods of extraction were not designed for the purpose of obtaining & high percentage of recovery. Since the introduction of improved methods of working, how- ever, and especially since the more general adoption of the longwall system, there has been a great improvement in the yield of coal in this country. Yet it will probably be admitted that there is still room to increase considerably the percentage recovery in British mines, and there is every inducement to do so, upon both economic and commercial grounds. In the United States this question has apparently gone through phases similar to those in our own case. It was not until the appointment of the American Coal Waste Commission in 1893 that much interest was taken in the subject; although some of the larger and stronger companies, particularly in the anthra- cite district of Pennsylvania, were sufficiently far- seeing to adapt their methods with a view to extending the life of the pit. Prof. Young says that in general those methods of mining which were cheapest and promised the largest profit on output were adopted. The prevailing tendency throughout has been toward the production of cfieap coal by wasteful methods. There has also been over-produc- tion with its attendant evils, still further stimulating cheapness, and increasing reluctance to adopt improved methods. Thus, except in special cases, the percentage of recovery in the United States has been lower than in Europe. Prof. Young very rightly questions the accuracy of the prevailing opinion that an increased percent- age of recovery necessarily entails a rise in the cost of working. It is certain that experience in some cases leads to the opposite conclusion. One of the chief coipmercial factors that have operated in the United States, he thinks, is the low cost of coal in the ground, which has led colliery owners to regard loss of coal as a matter of little.consequence. In many parts of the Illinois coal field coal rights have been purchasable at less than 50 dols. an acre, which, with a very moderate estimate Of working thickness, amounts to no more than a cent per ton of coal—it is even less in many cases; and Mr. Rice, in 1909, placed the cheapness of coal in place as one of the chief contributing causes to the loss of fuel. At that date coal rights in Illinois were so cheap to purchase that the leasing system was rarely adopted, and where it existed the royalty was only from 2 cents per ton run of mine hoisted in the southern part to 5 cents in the northern part of the State. In general, the cost of coal in place varied from one-thousandth part to one hundred-and-thirtieth part of the total cost of production. Even now the average value of coal in the ground is not more than about one-tenth of a cent per ton. But as this value is rising rapidly the question of high recovery is assuming increased importance. Prof. Young points out that a low percentage of extraction increases the cost of production, because for a given output it means a larger area of working and longer haulage roads. This involves higher cost of ventilation and more expensive supervision. There are many points of interest in Prof. Young’s bulletin to which we cannot now refer. He has written a valuable monograph upon this important subject; and the technical part alone, dealing with methods adopted to meet various conditions existing in United States mines, deserves careful study in this country. We have heard much of the superior capabilities of American miners, as judged by the output per man. These pages go far to show that efficiency of man power in a mine is not to be measured by tonnage produced alone, but is concerned also, and in no small degree, with the percentage of recovery attained. The effect of Mr. Fisher’s Education The Bill upon the mining industry is at Education the present time being actively dis- Bill. cussed by the various mining organ- isations of the country. When this Bill was first brought before Parliament1 we ventured to express the opinion that it had been framed with the view of making a real advance in national educa- tion with the least possible interference with existing machinery. Its main effect will be to raise the general standard of education throughout the country. In the achievement of this object every industry will certainly benefit in the long runj but it is equally inevitable that this result will not be attained without a certain amount of interference with the existing order of things. In the mining industry the main point of interest lies in the pro- posals concerning continuation classes. With certain exceptions, the Bill proposes to enforce com- pulsory attendance at these classes for all persons between the ages of 15 and 18, the minimum require- ment being fixed at 320 hours per annum, involving something like 7^ to 8 hours per week. Employers of labour would be obliged to afford facilities for attendance at these continuation classes; and it is intended that the time required for this pur- pose, including travelling, when added to the working time, is not to exceed, in the aggregate, in any day or week, the period of employment permitted by law. This would mean in practice that these young persons would virtually be withdrawn from their occupational employment for practically two days per week. More- over, since Saturday is not a schoolday, this educational work would have to be taken out of the remaining five days. Mr. Fisher is stated to have recognised what this would mean to the mining industry, where some- thing like 15 per cent, of the workers would come within the provisions of the Bill. It is believed that in consideration of this fact he will be prepared to accept one whole day’s attendance ar classes per week in the case of workers of this class. Since many youths, not yet 18 years of age, are employed on haulage roads and in loading colliery trams it can scarcely be asserted that their work is so unimportant that it can be withdrawn at any time without detriment to the daily routine of the pit. If, therefore, colliery work is to be carried on as before, it would be necessary, under the provisions of the Bill, to hold in reserve a sufficient number of youths to replace those who are absent on any particular day for the purpose of attending continuation classes. Exactly what this would mean it is difficult to say until the Bill has assumed its final shape. Possibly the reserve would have to be somewhere between 25 and 40 per cent., and it is not easy to see where this extra number is to be found. Mr. W. Jarvie read a paper before the Mining Institute of Scotland upon this questiofi a few days ago, and he called attention to the difficulties that would arise in this connection. If every colliery had a floating reserve of labour, what would be done with this surplus during school holidays ? If, on the other hand, the reserve did not exist, and the collieries were compelled to carry on short-handed, this must eventually result in a diminution of output, which, upon a moderate basis, Mr. Jarvie places at 2-34 per cent. In the opinion of many who are altogether in sympathy with the objects of the Bill, and who would hesitate to put any obstruction in its path, it would be possible to modify the continuation school provision without sacrificing any of its material benefits. There are those who believe that Mr. Fisher is insisting too strongly upon the principle that the continuation school must be day school, and that the attendance must be taken out of the employers’ time. This is naturally in great measure a physio- logical question, depending upon the effect of fatigue upon the receptivity of the youth. Mr. Jarvie, however, reminds us that one of the reasons advanced for the establishment of the eight hours day in mines was that this shortening of the hours of labour would provide more opportunity for recreation and study. There is also a further point. Young miners begin their technical education from the moment when they enter the pit. One of the objects of a general education is to afford a better opportunity of rising to a higher grade. Is this object to be better secured by attendance at continuation classes, or in technical classes as now carried on ? We are not prepared to answer this question off hand. It is one of the defects of any general scheme, applicable to every industry alike, that it is seldom possible to consider adequately the special requirements of individual occupations. In carrying out the principle of the greatest good to the greatest number, minorities may have to suffer. Mr. Fisher has apparently made up his mind that evening classes after a day’s work are not desirable. That may be true as a general proposition, but we take leave to think that in the mining industry evening classes have done much good in securing, by a process of natural selection, the more persevering and deter- mined youths, many of whom owe their present official positions to the advantages they have thus secured. This same point has been taken up by the Education Committee of the Federation of British Industries. This body has taken pains to ascertain the views of industry generally upon the whole question; and while they heartily support the proposal to establish compulsory education up to the age of 14, they are not in agreement with the scheme so far as it affects those between 14 and 18 They have ascertained that this proposal is viewed with great alarm in the industries throughout the country, especially as it would become operative at a critical time in the industrial future of the country, when it is absolutely essential that the minimum of dislocation should take place. They suggest, therefore, that it would be preferable to substitute a liberal system of whole-time education for selected youths, instead of part-time education for all. A similar view was taken in Germany, where, at the inauguration of a compulsory part-time system, provision was made for its gradual introduc- tion, in order to suit the convenience of the trades concerned and the prevailing local conditions. The compulsory minumum was, in fact, first fixed at only two hours per week. There is clearly, therefore, not only a strong case for a modification of this part of the scheme, but also an indication of the way in which this can be brought about.