January 18, 1918. THE COLLIERY GUARDIAN. 123 The predominant factors in thin coal mining success are: (1) Less rock dislodged; (2) increased tonnage; and (3) increased concentration of effort, by the same working force. The last of these essentials can only mean rapid face advance, and, in attaining that, the regular cycle of face operation should be continuous: the one following the other without rest, irrespective of hours worked. But, inasmuch as labour imposes conditions relative to the number of lawful hours a man may work, the successful application of the economic law of continuous operation has to be carried out under a proper arrangement of cutting hours, over a definite length of face, in a certain loading time, and limited repair hours: in a word, involves systematic organisation and design. Speed in mining is only possible in its entirety by having all the major opera- tions of the face done by machine, and until operators realise the fact that the adoption of one type of machine is only a partial relief from their necessities, the thin coal problem will still remain only half-solved, and can only be approached with caution, and be viewed wjth apprehension, because certain useful know- ledge is wanting. Lack of knowledge breeds fear and hesitation, and both these are elements of failure. What is wanted is a bolder policy; and the citizens of a country where the thin coal question has become acute have a right to expect it from those in posses- sion of coal lands, and who possess capital, to prose- cute the necessary experimental work. With the sub- ject of thin coals facing them and a closer union between the operator and the manufacturers, there is no reason why the machine problems of the thin coal mine should not be satisfactorily and successfully solved. It is true to-day that some of the types of machines for thin coal work are only in their infancy: imperfectly designed, and crudely made; but the fact that this is so is somewhat due to lack of demand, and more so through the inability of the coal operator to state clearly what is wanted. A great and successful advance in machine methods has taken place in recent years, and it is certain that there will be a greater one in the near future. Past experience has shown that once the demand for special labour-saving machinery is established, by the realisation and con- crete expression of the requirements for this or any other class of mining, the machine needed has always been forthcoming. Factors of Success. In thin, as in thick, coal mining, four major oper- ations are involved in the process of extracting the ‘coal:—(1) Undercutting the seam; (2) breaking down the coal; (3) loading away; and (4) attending to the support of the face and roads. Undercutting—the hardest part of the miner’s work—was the first to be done by machine, with results now well known, as shown in the utilisation of undercutting machines in ever- incfeasing numbers. The breaking down of the coal is the oldest part of the work carried out by a power agent, namely—explosives; but this has, to some extent, been directly influenced by the introduction of the cutter. In the older longwall systems, when the tonnage of coal obtained from the seam was relatively smaller, few roads were required to take away the coal. In the newer machine-mined sections, however, where more coal is obtained per day, it was found that additional roads were needed in order to ensure that the day’s cut of coal was certain to be loaded away, to make room for the next machine cut, at night. This, in turn, meant more fallen stone work for every road in the section, and,, in addition, there was a faster and a greater shovelling of the coal to the road-head. To overcome these conditions, the face conveyor was invented, which reduced the rock handling in the road- head by the simple expedient of eliminating all roads except one or two, such as the main hauling road and a ventilation road. Further, it provided the miner with an appliance immediately at his back, into which he loaded his coal, thus also eliminating the turning over and shovelling of the coal along the face, which is not only an arduous task in the cramped quarters, but an operation that took up half the miner’s time, and added to the breakage produced. The loading of the coal into the conveyor is the last operation still being done by hand. To get machines to accomplish this work—which should be the case—there is yet to come into existence the low underground coal loader : a travelling machine like the coal cutter, which will pass up the face after the web of coal has been broken down, and will load it into the conveyor at its side. Machine mining has generally the following economic advantages: — (a) A much increased output from a given area. (b) The undercutting cost is less, by the large increase of output per man. (c) Owing to better and advantageous control of the roof, the cost of timbering and explosives are both reduced. (d) Better coal is produced: less slack being cut by the machine than by hand mining. (e) There is greater safety at the face. The most important point is the recognition by management and men alike of the changed conditions introduced in the mine: such as piecework division of the labour; “ tuning up” needed with the increased output; and the regularity of service. The foregoing remarks apply equally well to conveying and loading .operations. The medal of the Order of the British Empire has been •awarded to Mr. F. E. Hall, of Sheffield, the rescue appar- atus foreman of the Mining Engineering Company Limited, for undertaking dangerous experiments at on,e of H.M. munition factories. Scottish Oil Fields Development. — A new method of obtaining oil is being pushed forward under Government auspices in the Scottish oil fields. Jt has been found that existing plant is capable of extracting oil from cannel coal, and various companies are being urged to extend their retorts, while at three selected collieries special retorts are to be erected. INCIDENCE OF TAXATION UPON METALLIFEROUS MINING. In the course of a paper read before the Institution of Mining and Metallurgy on Thursday, January 17, Prof. Henry Louis reviewed the decline of metalli- ferous mining in the British Isles, and asserted that not the least important of the contributing causes are the methods of taxation adopted by our fiscal authori- ties. No doubt one great reason why fiscal legisla- tion has never taken the slightest account of the con- ditions peculiar to the mineral industry is to be sought in the fact that in this country mining has never had an accredited mouthpiece; if we had had a Minister of Mines, or a representative of a Government Mining Department capable of placing before Parliament a proper view of the injury that its fiscal policy was inflicting upon the mining industry of the country, it is highly probable that metalliferous mining in this country would not be at its present low ebb. The principal taxes laid upon mining and minerals are income tax, local rates, mineral increment value and mineral rights duties, and additional mineral rights duties. Whilst nominally some of these bear only upon the royalty owner, in reality they nevertheless affect the mining industry as a whole. Mineral landlords appear always to have been considered fair game by Chan- cellors of the Exchequer; any real or even apparent attack upon their royalties has always pleased the popular party, and as the landlords are few in number, and even the whole of their collective votes would exert not the slightest influence upon the balance of poli- tical power, it has always been easy for politicians to attack them. It is, however, obvious enough that any taxation upon mineral royalties will be borne ulti- mately not by the royalty owner, but by the miner, until the latter can in his turn transfer it again to the general public; the hand that pays the tax may be that of the royalty owner, but in the long run the money will come not out of his pocket, but out of some- one else’s. Income Tax. Income tax has always been charged upon mining undertakings, just as it has been upon all others, with- out the least regard to the essential differences between them. A mine, however, is a wasting asset, and on this account ought to receive treatment entirely different from that meted out to assets of a perma- nent character. This fact that we are dealing with a different type of asset is to some extent obscured by the accepted conventional term that mineral property is held under a mining lease, thus in the popular mind ranking it on the same footing as any other lease- hold : other leasehold property, however, is held undei’ an occupation lease, the “ lessee having only the usufruct, so that the property is returned intact to the lessor at the expiration of the lease ’ ’; quite opposite conditions prevail in the case of a mineral property, where the essential condition of the lease is that the corpus of the asset shall be destroyed or diminished. A mining lease is in its essence an agreement for the sale of mineral in the ground, and a royalty is not a true rental, but is in fact payment for unsevered mineral, and it is an essential condition of a mineral lease that the property must necessarily be returned to the owner in a depreciated condition, diminished in value by the amount of mineral that has been extracted during the period of the lease. Hence it follows that a profit derived from working minerals is not a mere dividend upon the capital invested, but consists of dividend plus an actual portion of the capital, and it is manifestly inequitable to tax such profits on the same footing as profits derived from an enterprise in which the capital is not a diminishing one. Failure to recognise this essential fact lies at the root of most of the fiscal injustice under which mining is suffering. As long as the income tax was quite small, the effect was, no doubt, not very noticeable, but now that income tax has risen to formidable dimensions, and that there is every probability that it will remain high for a considerable time to come, the effect is very serious, and naturally deters capital from seeking investment in enterprises thus heavily handicapped. The demand of the mining industry for relief from taxation for such part of its so-called profits as really represents a diminution of assets is surely an equitable one, and one that ought to receive immediate con- sideration from the fiscal authorities. Another serious drawback is to be found in the totally inadequate allowance made for the depreciation of mining machinery. Under the Customs and Inland Revenue Act of 1878, section 12, provision is made for the allowance of depreciation upon plant, machinery, etc., the rate of depreciation to be fixed by the Income Tax Commissioners, and this is still the basis upon which this portion of the assessment is dealt with. The rates allowed are wholly inadequate; they are mostly 2| per cent., sometimes 5 per cent., and, excep- tionally, 7| per cent, has b6en allowed. It is obvious enough to any mining engineer that 40 years’ purchase is wholly inadequate for the redemption of modern mining machinery. A mine attempting to work with plant 40 years old is assuredly foredoomed to failure; new inventions and improvements in mining plant are fortunately fairly rapid, and such plant becomes anti- quated and hopelessly out of date in a very few years; moreover, it wears out rapidly. To take a somewhat extreme case, just consider winding ropes, which in some instances have to be renewed every six months. Most mining engineers will agree that at least 10 per cent, should, as a general rule, be allowed for depreciation of mining machinery and plant, and that some more satisfactory method than the present one should be devised for adjusting depreciation equitably in special cases. By the above rate is meant a rate on the original value of the plant, and not, as is usual in income tax assessment, a rate on its diminishing value; if the latter method of rating be adopted, the rate should be proportionately higher. Furthermore, this rate is intended to include deterior- ation and obsolescence only. The practice of the Income Tax Commissioners to decline to allow depreciation where renewals are allowed is wrong, as also is their practice of regarding all renewals as an increase of capital. Where an old machine is replaced by a new and more powerful one— thus definitely increasing the producing capacity of the mine — the difference between the values of the two machines when new may equitably be charged to capital; but renewals and repairs in the ordinary sense, attended by no increase in producing capacity, ought, properly speaking, to be allowed annually, in addition to depreciation as defined above. British mining engineers are often accused of con- servatism, and of clinging obstinately to old-fashioned methods; but it is usually forgotten how important a part the national fiscal policy plays in their attitude, and how difficult it is to move a board of directors to expenditure on new plant, when they not only have to find the money to pay for it, but have to pay income tax upon the money in addition. The real wonder is not that we move so slowly, but rather that we make any advance at all in the face of a fiscal policy that deliberately discourages all improvements. Even worse, perhaps, is the position as regards mine development. The Income Tax Commissioners refuse to allow mine development as a portion of working costs, there being, in fact, no legislation authorising such allowance; accordingly, mine development is treated for income tax purposes as an addition to capital. There is no need to point out how essential a factor in the life of a metalliferous mine is a liberal expenditure upon development. Unless development be kept some years ahead of exploitation, the very existence of a mine is imperilled, and no doubt there are plenty of British mines now derelict which might be producers to-day if a proper system of development had been instituted and maintained. This, however, involves the difficulty already referred to. A mining engineer finds it difficult enough to get a board of directors to consent to unpro- ductive expenditure under the best of circumstances, but when the directors are asked not only to spend large sums of their shareholders’ money, but to pay income tax upon them in addition, their reluctance can be quite well understood. If Legislature had been anxious to devise a means for crushing out metalli- ferous mining in this country, it could hardly have hit upon a more effective device than this of discouraging development by in effect taxing it; and this system has very directly contributed to the decadence of British metalliferous mining. The proper method is that adopted extensively in South Africa and elsewhere, namely—of opening a separate development account, debiting it with the actual cost of all development, and of crediting it with an amount determined, at an agreed rate, by the tonnage of mineral opened up by such work, as and when the mineral is extracted ; necessarily, the mineral wrought must bear the cost of unproductive develop- ment work, as well as that of development, which does, in fact, open up new reserves. The sum thus credited to the development account should be looked upon as an item in working costs, and go in diminution of assessable profits, and therefore be free from income tax. The equity of this suggestion is quite obvious, and need not be laboured, whilst the prejudicial effect of the present method upon the development of our national mineral resources is no doubt equally evident. The proper remedy for all these evils would probably be to charge income tax, not upon the gross profits as is now done, but upon the dividends or the portion of the profits actually distributed, as and when so paid out. This method, which seems a perfectly equitable one, would allow mining enterprises to put aside such portion of their profits as they see fit for renewals, etc., of plant and for development work. The Exchequer would, in the long i-un, be the gainer, because it would in due course collect income tax upon the profits resulting from improved plant, and from the additional ore reserves thus developed. If it were further enacted that a sum equal to the original capital could be reimbursed to the shareholders in the mine free of income tax when the mine is exhausted, or the mining company wound up, thus placing investors in mines in the same position as other investors, an incen- tive would be given to mining enterprises to set aside a proper redemption fund for the ultimate repayment of the capital sunk—a practice which, in spite of its soundness, is unfortunately to-day the exception and not the rule among British mining enterprises. Local Rates. On the question of local rates, it is interesting to remember that the original law that imposed such rates, namely, the Poor Law Act (43 Elizabeth), although it made coal mines ratable, did not extend to metalliferous mines; the circumstance is noteworthy, especially when we remember that Queen Elizabeth has been practically the only English Sovereign that ever evinced any real interest in metalliferous mining. Metalliferous mines are, of course, now subject to rates under the Rating Act of 1874. The general principle is that the ratable annual value of a mine is taken to be the annual rental at which the mine might reason- ably be supposed to let; in other words, here again legislation fails to recognise the essential difference already pointed out between an occupation lease and a mineral lease, between payment for the usufruct of a property and payment in purchase of the corpus of the property itself, so that here again the mineral industry suffers from the same unfair treatment as it does under Imperial taxation. The difficulty of getting an equit- able assessment even under existing law is a further grievance with which mine owners in this country are only too familiar. Again, it very often happens that, since mines are usually situated in otherwise unproductive land, remote from any other industrial centre, they frequently constitute the principal ratable asset in a parish, and have to bear by far the greatest share of the rates, but have nevertheless practically no control