714 THE COLLIERY GUARDIAN. October 13, 1916. MIDLAND COUNTIES INSTITUTION OF ENGINEERS. ANNUAL MEETING AT NOTTINGHAM. The annual meeting of the members of the Midland Counties Institution of Engineers was held at the University College, Nottingham, on Saturday last. The retiring president, Mr. G. S. Bragge, was in the chair. New Members. The acting secretary (Mr. Percy W. Lewis) announced the election, by ballot, of the following associate : Charles Perkins, mining overseer and quarry manager—blasting opeiations, etc., Victoria Memorial Marble Quarries, Makrana, J.B. Railway, Rajputana, E. India. t Annual Report. It was decided that the report of the council and the balance-sheet be taken as read. The report showed a membership of 337, as compared with 356 last year, and 367 in the year preceding. The financial position again showed an improvement, although the subscriptions of members on Active Service have been remitted. A sum of £700 has been invested in 5 per cent. Exchequer Bonds during the year. The council regretted that no papers for discussion had been contributed during the year. Eleven more members had joined his Majesty’s Forces, making a total of 28 members, one associate member, six associates, and 14 students since the outbreak of hostilities- During the year one member (Capt. W. B. Creswick) had been killed, in action, making a total of three members and two students who had laid down their lives for their country. To the relatives of these the council desired to convey its sincere sympathy and condolence. The Election of Officers. The acting secretary announced the election of the following officers :— President, Mr. George Spencer ; vice-presidents, Messrs. P. Beaumont, H. O. Bishop, E. E. Bramall, T. G. Lees, B. McLaren (retiring vice- presidents), J. Mein (new nomination); councillors : Major T. P. Barber, Capt. H. Dennis Bayley, Messrs. C. Dickinson, C. M. Haslam, C. R. Hewitt, F. N. Iliffe (retiring councillors), Mr. F. Chambers, Lieut.-Col. R. P. Leach,Messrs. H. March,H. E. Mitton, W.Tate,andD. N. Turner (new nominations). The following are ex-officio members of the council for the ensuing year :—Messrs. J. A. Longden, M. H Mills, W. D. Holford, Maurice Deacon, W. B. M. Jackson, W. G. Phillips, G. J. Binns, W. Hay, J. Piggford, J. P. Houfton, W. H. Hepple- white, G. S. Bragge (past presidents), and Mr. R. H. F. Hepplewhite (vice-president of previous year). Presidential Address. The President said that since the war began the mining industry of the country had contributed its full share in filling up the ranks, no less than 25 per cent, of the workers, or a total of 250,000, having joined the Colours—an eloquent testimony to the patriotism of our miners. The immediate effect of such heavy drafts on the workers of the collieries was a serious diminution in the output of coal. Whatever misgivings or un- certainty there might have been at the outbreak of war as to its effect upon the coal trade, it was soon apparent that the demand for coal would with difficulty be met. An influx of men to the mines from other industries improved the situation in a slight measure, but such men could not take the place of the skilled miners who had left the pits to join the Army. The demand for coal had continued to increase, and at the present time it was notorious that there was a serious shortage in the country—so much so that public bodies had issued notices to the public exhorting them to exercise the most rigid economy in household consump- tion both of fuel and lighting. We were face to face, in fact, with a serious problem, viz., how to increase our output so as to meet the growing needs both of ourselves and of our Allies. Absenteeism was undoubtedly responsible for a great deal of the shortage, and steps had been taken in co operation with the officials of the miners’ unions to set up machinery to deal with the question. This had met with only partial success, and more drastic steps appeared to be necessary. The suspension of the Eight Hours Act had been suggested as a remedy, but such a step was viewed with disfavour by the men as only to be adopted as a very last resource. The advocates for suspension claimed that by increasing the working day by one hour a large increase in the output would result, although not necessarily in the same ratio. The question was fraught with many difficulties, bo1h from the owners’ and workmen’s point of view, but in the interests of the country such difficulties ought to be met in a fair and reasonable spirit. If it should be proved necessary for the carrying on of the war to a successful issue it was inconceivable that the miners, living at home in security, would refuse to work the extra hour a day, seeing that their comrades at the front were making still greater sacrifices. The question of pit timber had been a serious one since the outbreak of war, and a stimulus had been given to the use of substitutes—such as rolled joists, tubular pit props, reinforced concrete, composite props, and a host of others. Valuable information had been imparted at several of their own institution meetings, and the subject was one still worthy of being followed up. The restriction in the use of steel had further increased the difficulty. Supplies of pit timber bad been coming in more fieely of late from abroad, and large demands had been made on our home-grown woods and forests. This had brought into prominence still another subject to be forced on the members of the various mining institutions, viz., that of forestry—not that it could be expected that the mining engineer must be an authority on forestry, but undoubtedly he could render assistance, by collaborating with the forestry expert, when the time arrived for practical steps to be taken for the afforestation of suitable lands in our own country. They could be looking ahead and noting which of the many different kinds of timber used in the mines proved to be most suitable. Owing to the great demand on the time and energies of the members of the institution, the number of meetings had been reduced, and the number of papers written had certainly not been numerous, but in these strenuous days one had hardly the time to read the Transactions, much less to write papers. They must, however, do all that was possible to maintain the interest in the institution, and every encouragement should be given to their younger members to write papers and take part in the discussions. The question of fuel economy was one which con- cerned not only the public, but also themselves, as mining engineers, to a large degree. How to utilise their inferior fuel to the best advantage at the mine was, at the present time, of national importance. Every t >n of coal saved at the pit was one ton gained for the country. Here was a great scope for their students and younger members in the collecting and recording in a scientific manner the results of tests and the experiments. In conclusion, he could only wish that before the expira- tion of his term of office they might meet, under more happy circumstances. Mr. W. H. Hepplewhite proposed a vote of thanks to the president for his address He said he had known Mr. Spencer for a great many years, and he was one of the few remaining who was in harness when he (Mr. Hepplewhite first took up office. Mr. J. Mein said that, as an old member of the institution and a great admirer of the newly-elected president, he had great pleasure in seconding. Those who knew Mr. Spencer knew that they had to drag out of him his excellencies; he was one of those modest men who would not shine unless they got a very powerful and strong influence on him to make him do so. The resolution was unanimously carried, and briefly acknowledged by the President. New Rules. Mr. Bragge announced that the rules and regulations of the Federated Institution of Mining Engineers had now been settled by Royal Charter, and as the Midland Counties Institution formed part of the Federated Institution it was thought desirable by the council that their rules and by-laws should be brought into line with those of the Federated Institution. A small com- mittee was appointed by the council to go into the matter, and draw up amended rules for the guidance of that institution in the future so as to bring it into line with the Federated Institution. The matter had been brought before the council and remarks had been made, but nothing could be done except at a general meeting, and notice must be given that it would be brought forward in accordance with the institution by-laws. He therefore gave notice that at the next general meeting the alterations, as shown in the draft copies, would be considered. It did not mean that they were bound to accept the alterations just as they were printed. At the next general meeting any member could propose any alteration or amendment, and if they were accepted by the meeting they would become law. The draft rules were merely drawn up for the members’ guidance, and they would be brought up for adoption or amendment as the case might be. Pit Timber and its Preservation. A discussion took place on “ Pit Timber and its Preservation,” by Prof. Percy Groom, M.A., D.Sc. (see Colliery Guardian, March 24, 1916, p. 554). Mr. W. H. Hepplewhite (Tamworth) said that he thought the method suggested could scarcely be adopted with any kind of success about the pit. There were a few things he would like to comment on. The author had said that timber should have an application of water to prevent it from decaying, but how they were to drench timber on the roadway without causing the sides and roof to give way he did not tell them. Their aim had been not to water—or at least as little as possible con- sistent with keeping down the dust. Further on, Prof. Groom said that in order to prevent wood from decaying it was sufficient to keep it absolutely dry. The complete settlement of a roof did not take place within half a mile or three-quarters of a mile from the working face, and that was the place probably where preserved timber might be used. . The greatest amount of decayed timber was in the air- roads, where the ventilation current was not so good. Prof. Groom spoke about fiesh props. That was to say, that some timber would not decay to the same extent as others in the same atmosphere. If a larch prop gave way they should put up an oak or pine prop. He gave some figures about the relative duration of props, but did not say if they had been subjected to any kind of pressure. The author had made one good suggestion—viz., to apply a coating of whitewash ; it was a wonderful preservative of timber, though he (the speaker) had known cases where, owing to the atmo- sphere, timber which had had six or eight coatings had lasted no longer than untreated timber. Reinforced props had been found to act very well. It was not because there was any amount of pressure, since if they could stop the r. of from coming away and allowed it to settle instead of allowing it to creep, which was the cause of timber giving way, they would find the benefit. Mr. H. O. Bishop (Ilkeston) said that now they had had to come down to English timber they found that in some districts it had stood exceedingly badly. He thought the cause was that the English timber was not barked and the sap had not had time to dry out. They had found that foreign timber, generally speaking, had stood, not as against pressure but as against decay, far better than the English fir or larch. If English timber were allowed time to dry he thought they would have much better results. Mr. W. Tate (Tamworth) said that for some time they had been trying the “ pencil point ” system but recently Mr. Hepplewhite had given him a new way. That was, instead of having the end like a pencil point, it should be made chisel shaped. They would find that instead of breaking in the middle or higher up it would bend. It held the roof all right; and they put a lid at the bottom of the prop so that it could not go into the floor. Mr. Bragge (Moseley) said that the question of preserving pit timber did not apply so much to pit props as to the timbering of main roads. Face timber did not last long enough to be worth while treating it. He would like to ask what really caused the fungus on the timber to appear. One found it in unexpected places, and not in places where one thought it would have appeared. He believed that the timber must be infected with germs when it came to them from abroad, and these developed in certain circumstances and in certain places. He agreed that whitewash was a very good preservative. It stood to reason, for lime was a disinfectant and destroyed the spores of the fungus. If some of the younger members of the institution w ould whitewash a length of roadway where they saw the fungus appearing it might be of interest to com- municate the results to the members at a future meeting. The President said that with regard to Mr. Hepple- white’s remarks about the timber being wet and dry, he thought the intention of the writer of the paper was that timber should be either totally immersed or kept perfectly dry. It recalled to his mind what he had heard from an old friend of his who was an engineer in Rumania. He described how they had found piles of an old bridge which was put across the Danube by the Romans. They had to disturb some of the piles, and it was said that they were perfectly sound although it must have been nearly 2,000 years ago. The point was that where timber was totally immersed it would last for a vast number of years; where it was subject to wet and dry alternately it decayed very rapidly. Those were the conditions usually obtaining in the pits. The roads might be, according to the conditions of the atmosphere, dry at one time and wet at another. He fully agreed with what Mr. Bragge had said about whitewash. He believed for the best results they should whitewash when the timber was dry so as to destroy the fungus or germ. With regard to the durability of timber—foreign as against our own—he had found in recent months that the timber they were having from France—poplar and French pine—contained very thick bark, in some cases Jin. Some of the timber was very weak, and rotted in a short time owing to the thickness of the bark. If it were barked before it was exported to this country they would find it vast’y improved. The reason why English timber did not last longer was that it was not seasoned. He had seen some with green leaves still on it. It was not so strong when it was unseasoned, and, for his own part, he did not think it was so durable. With regard to the system of sharpening props he thought it a very good one, and he looked forward to trying the experiment. Mr. Tate said that a lid should be put at the bottom of the prop. That, however, applied only in cases where the floor was soft. In the case of a hard floor—like his Kilburn seam—a lid would be unnecessary, and, in fact, detrimental. Fuel Economy. On the suggestion of the President a discussion on “ Fuel Economy ” was postponed until the next meeting. The Acting Secretary said that a committee had been appointed by the British Association to consider the question of fuel economy and the coal requirements of the country. He would obtain a copy of the com- mittee’s report so that it could be used at the next meeting of the institution. An anonymous donor has presented .£100 to the mining department of the Heriot-Watt College, Edinburgh, for research and rescue apparatus. The late Capt. K. C. R. Blair, D.S.O., managing director of the Whitehaven Colliery, who was killed in action on July 21, left estate valued at £3,276.