874 THE COLLIERY • GUARDIAN. October 25, 1918. THE COLLIERY GUARDIAN Monthly List of Recent Coal Literature. I.—General. Diffusion of Oxygen through Stored Coal. S. H. Katz. “ U.S. Bureau of Mines Techn. Paper 176,” 48 pp. 27 fig. Why German Coal Commanded the Belgian Market. E. Cornand. ‘ Colliery Guard.,” October 4, p. 703. Belgium’s Probable Foreign Coal Requirements After the War. E. Cornand. “ Colliery Guard.,” October 8, p. 809. 111.—Geology. A Neglected Coal Field in West Virginia. “ Coal Age,” Sept. 25, p. 595. Search for Petroleum in the Derbyshire Coal Field. T. Sington. “ Iron Coal Tr. Rev.,” October 18, p. 427; 1 fig. VI.—Working of Minerals. Modern Mine Equipment in Kentucky. W. S. Hutchison. “Coal Tr. Bull.,” Sept. 2, p. 46; 4 fig. Conveyors in Hand Cut Faces. R. C. Morgan. “ JI. Monm. Colly. Offls. Assocn.,” October, p. 43; 15 fig. Coal Cutters and Conveyors. B. L. Phillips and J. F. R. Bateman. “ JI. Monm. Colly. Offls. Assocn.,” October, p. 62. Mechanical Equipment and the Conservation of Mines. R. L. Herrick. “ Compr. Air Mag.,” September, p. 8876; 7 fig. Machine Mining at La Salle, Ill. G. W. Harris. “ Coal Age,” Sept. 19, p. 536; 5 fig. Oblique Faced Rooms. G. W. Sutherland. “ Coal Age,” Sept. 26, p. 580; 1 fig. VII.—Boring, Shaft Sinking, and Tunnelling. The Kellow Rock Drill. “ Iron Coal Tr. Rev.,” October 11, p. 409; 1 fig. . VIII. —Explosives, Blasting. The Use of Permissible Explosives in the Coal Mines of Illinois. J. R. Fleming and J. W. Koster. “ U.S. Bureau of Mines Bull. 137,” 110 pp; 17 fig. Initial Priming Substances for High Explosives. G. B. Taylor and W. C. Cope. “ U.S. Bureau of Mines Techn. Paper 162,” 24 pp. and Bibliography. Safety in the Use of Explosives. A. La Motte. “ Coal Age,” Sept. 12, p. 490. (Paper read before Natl. Safety • Council.) IX. —Timbering, Packing, etc. Memorandum on the Use of Concrete for Mine Supports. Prof. G. Knox. “ JI. Monm. Colly. Offls. Assocn.,” October, p. 27; 8 fig. Pit Timbers Used in Loire Coal Field (Les Bois de Mines employes dans le Bassin de la Loire). H. L. Seurre and H. Verney. “ Bull. Soc. Ind. Min.,” Vol 14, Pt. 1, p. 21. Primary Considerations in Hydraulic Stowing. C. A. J. Hendry. “Colliery Guard.,” October 18, p. 805; 14 fig. (From paper read before Geol. and Min. Soc., India.) XI.—Winding and Haulage. Large Underground Synchronous Substation. R. P. Hines. “Coal Age,” Sept. 5, p. 434; 4 fig. Advantages of Storage Battery Locomotives. C. W. Chappelle. “ Coal Age,” Sept. 5, p. 437; 3 fig. Safety on an Electric Hoist. R. J. Calloway. “ Coal Age,” Sept. 12, p. 478; 1 fig. Steel Cantilevers Support Head Frame. “ Coal Age,” Sept. 19, p. 553; 1 fig. (From “Eng. News-Record.”) Determination of the Proper Size of Storage Battery Loco- motive. D. C. Ashmead. “ Coal Age,” Sept. 19, p. 548; 2 fig. Steel Guides in Shafts. J. Whitehouse. “ Colliery Guard.,” October 11, p. 755; 4 fig. (From “ JI. S. Afric. Engin.”) XII__Signalling. Electric Signals on a Modern Tipple. F. Huskinson. “ Colliery Guard.,” Oct. 18, p. 810; 2 fig. (From “ Coal Age.”) Practical Signal on a Mine Slope. C. G. Brehm. “ Coal Age,” Sept. 12, p. 479; 4 fig. XIV.—Ventilation. Auxiliary Ventilation of Coal Mines. J. Fox. “ Colliery Guard.,” October 11, p. 756; 2 fig. Explosibility of Coal Dust and Air Mixtures. J. K. Clement and J. N. Lawrence. “ Colliery Guard.,” p. 758; 1 fig. (From “ U.S. Bureau of Mines Techn. Paper 141.”) XV.—Mine Gases, Testing. Outbursts of Gas in Crowsnest Field. J. Ashworth. “ Coal Age,” Sept. 5, p. 443; 3 fig.- New Firedamp Tester (Eudio-grisoumetre, nouvel appareil industriel pour 1’essai des gaz combustibles). E. Hauser. “ Bull. Ind. Min.,” Vol. 14, Pt. 1, p. 71; 3 fig. XIX. —Rescue and Ambulance. Resuscitated After Long Treatment. “ Coal Age,” Sept. 12, p. 197; 3 fig. Mine Safety Appliances in Warfare. F. H. Trego. “ Coal Age,” Sept. 12, p. 504. Estimation of Nitrogen in Compressed Oxygen. “ Colliery Guard.,” October 4, p. 704; 2 fig. (From Report of the Rescue Apparatus Research Committee.) Suggested Rules for Use in Rescue Work. “ Colliery Guard.,” October 4, p. 705. (From Report of the Mine Rescue Apparatus Research Committee.) Training Rescue Brigades. “ Colliery Guard.,” October 4, p. 709. XX. —Drainage, Pumping, etc. The Unwatering of the Pensford Colliery. C. Lewis. “ Iron Coal Tr. Rev.,” October 4, p. 371; 6 fig. (Paper read before S. Wales Brch. Assocn. Min. El. Engin.) Waterproof Plunger Grease. L. W. Brooks. “ Colliery Guard.,” October 4, p. 707. (From “ Coal Age.”) XXL—Preparation. Fine Coal Washing for Coke in South Wales. “ Gas Wld.,” October 5, p. 16; Coking Section; 2 fig. Simpson Creek Coal Company’s Tipples. R. G. Read. “Coal Age,” September 5, p. 430; 5 fig. Valley Camp Coal Company’s Tipple at Parnassus, Penn. G. S. Jaxon. “Coal Age,” Sept. 26, p. 582; 11 fig. A New Type of Screen. M. Raymond. “ Coal Age,” Sept. 26, p. 589; 3 fig. (Langdahl multiple rope screen.) Novel form of Separating Tank. “ Iron Coal Tr. Rev.,” October 11, p. 408; 1 fig. (Washery water clarifier.) XXI I.—Briquettes. Economy of Briquetting Small Coal. J. A. Yeadon. “ Colliery Guard.,” October 11, p. 767. (From paper read before Min. Inst. Scotld.) XXIIL—Coke Ovens and By-Products. Generation of Suction Gas for Gas Engines. “ Chem. Eng. Min. Rev.,” July 5, p. 305. The Cracking of Refractory Bricks in Drying and Baking (D’une forme nouvelle de la Retassure). Lt. Gerin. “ Bull. Soc. Ind. Min.,” Vol. 14, Pt. 1, p. 109; 3 fig. Modern Fabrication of Silica Brick. “British Clay- worker,” October, p. 104; 5 fig. Fuel Saving in Burning Firebricks. “ British Clay- worker,” October, p. 106. Inspecting Refractory Bricks. C. E. Nesbitt and M. L. Bell. “ Iron Coal Tr. Rev.,” October 18, p. 434. (From paper read before Amer. Soc. for Testing Materials.) By-product Coke Oven Pressure Regulation. C. H. Smoot. “Iron Coal Tr. Rev.,” October 18, p. 438; 3 fig. (From “ Gas Age.”) Low-Temperature Distillation of American Coals. G. W. Traer. “ Colliery Guard.,” October 4, p. 704. (From paper presented to Amer. Inst. Min. Engin.) The Wuerth Gas Producer. “ Iron Coal Tr. Rev.,” October 18, p. 433; 1 fig. (From “Stahl und Eisen.”) Standard Tests for Refractory Materials. “ Colliery Guard.,” October 4, p. 713. (From Report of Refrac- tories'Section of the Ceramic Society.) Refractory Bricks from Non-Plastic Materials. G. W. Mottram. “ Colliery Guard.,” October 18, p. 808. (Paper read before Refracty. Matls. Sectn. of the Ceramic Society.) The Refractory Materials of South Wales. J. Allen Howe. “ Colliery Guard.,” October 18, p. 810. (Paper read before Refractories Sectn. of the Ceramic Society.) Experiments in Coking. “ Colliery Guard.,” October 18, p. 813. XXIV.—Fuels, Testing, etc. Calorific Value and Ash Yield of Coal Samples from Same Seam. T. J. Drakeley. “ Colliery Guard.,” October 11, p. 753. (Paper read before Mchstr. Geo. and Min. Soc.) Control of Fuel and Air in Burning Powdered Coal. W. G. Wilcox. “ Colliery Guard.,” October 18, p. 808. (From paper read before W. New York Sectn. of Amer- Chem. Soc.) Some Points Regarding Calorimeter Efficiency. W. P. White. “ JI. Frankl. Inst.,” Sept., p. 279. XXV.—Steam Engines and Boilers: Gas Engines. Boiler-Feed WTater and Incrustation. “ Sc. and Art Min.,” October 5, p. 74. Notes on Steam Boilers. “ Sc. Art Min.,” October 19, p. 87. Use of Waste Gases for Steam Generation. J. B. C. Ker- shaw. “ Coal Age,” Sept. 25, p. 591. Operation of Steam Turbines. J. Humphrey. “ Iron Coal Tr. Rev.,” October 18, p. 430; 4 fig. Wear and Tear of Fuel Economisers. E. Ingham. “ Colliery Guard.,” October 4, p. 707. Fuel Economy. “ Colliery Guard.,” October 4, p. 709. XXVI.—Compressed Air. The Best Oils for Air Cylinders. W. H. Callon. “ Compr. Air Mag.,” Sept., p. 8881. XXVIL—Electricity. Direct Current Armatures. L. Fokes. “ Sc. and Art Min.,” October 5, p. 68; 1 fig. A D.C. Generator for Constant Pressure at Variable Speed. S. R. Bergman. “El. Rev.,” October 4, p. 335; 5 fig. (From “JI. Amer. Inst. Electr. Engin.) Re-winding and Testing D.C. Locomotive Armatures. F. Huskinson. “Coal Age,” Sept. 19, p. 541; 16 fig. Electricity in Mining. L. Fokes. “ Sc. Art Min.,” October 19, p. 82; 3 fig. (Neutral Brush Position; Drum Armatures; Laminated Iron.) The Operation of Rotary Converters. J. Humphrey. “ Iron Coal Tr. Rev.,” October 11, p. 407. The Power Factor. “ Colliery Guard.,” October 4, p. 706; 1 fig- The Running and Maintenance of Induction Motors art Collieries. L. Fokes. “ Colliery Guard.,” October 4, p. 701; October 11, p. 757; 5 fig. XXVI11.—Surface Transport and Storage. Private Owners’ Wagons. “ Ry. Gaz.,” October 4, p. 352. Coal and Mineral Traffic on the Railways of the United Kingdom. H. Kelway-Bamber. “ Ry. Gaz.,” October 4, p. 363. (Paper read before Instn. Locomotive Engin., Leeds.) Coke Handling at Manchester Corporation Gas Works. G. F. Zimmer. “ Eng.,” October 4, p. 367; 8 fig. The Motor Trucks in Retail' Coal Delivery. “ Blk. Diamond,” Sept. 7, p. 187; 1 fig. Shipping Facilities at the World’s Largest Coal Mine. R. W. Mayer. “ Coal Age,” Sept. 26, p. 586. (Vesta No. 4 Mine, California, Penn.) XXIX.—Sanitation, Diseases, etc. Fireco : A New Mining Town in West Virginia. “ Coal Age,” Sept. 12, p. 492; 1 fig. Effect of Pneumatic Reciprocating Tools on the Nervous System. F. M. Barnes. “ Coal Age,” Sept. 12, p. 510. OBITUARY. By the death of Sir Edward Fry, which occurred on Friday, at Bristol, in his 91st year, an outstanding figure in earlier years of South Wales coal trade difficulties has been removed. He was particularly prominent for his work during the five months coal strike of 1898, when rioting led to the calling out of the military. Sir Edward Fry then acted as conciliator at the request of the Board of Trade ; but Lord Merthyr, in the name of the coal owners, declined to accept the intervention of Sir Edward. Mr. H. J. Hills, coal exporter of Cardiff, died suddenly on Saturday. On the Cardiff Coal Exchange he had been particularly concerned with export to Italy ; and because of his large dealings had been termed the “ small coal king.” At one time he was in the office of Messrs. Fisher and Renwick, and afterwards of Messrs. Burgess and Company at Swansea; subsequently with Cory Brothers and Com- pany. His firm acted as agents in the United Kingdom for the largest fleet of Italian merchant vessels. He was managing director of the Cardiff Washed Coal Company, and of three or four other coal trade organisations. The death occurred in London. last week of Mr. Frank Stobart, aged 63, chairman and managing director of the Wearmouth Coal Company Limited. Mr. Stobart had been ill for about a fortnight. He was a member of an old Sunderland family. His father (Mr. William Stobart) was chairman and managing director of the Wearmouth Coal Company up to the time of his death in 1905, when he was succeeded by Mr. Frank Stobart. The latter was also a director of the North-Eastern Railway Company, the Consett Iron Company Limited, Messrs. Pekse and Partners Limited, and a member of the River Wear Commission. Whilst on an official visit to the Amelia Pit, Shankhouse, Northumberland, on Tuesday, Mr. Andrew Crawford, under- manager, was suddenly taken ill and died almost im- mediately, apparently from heart failure. Mr. Crawford, who was about 68 years of age, had been under-manager at the pit for about 30 years. Mr. William Crawford, of Linton Colliery, who died last week at the age of 79 years, was at one time a very promi- nent worker in connection with the Northumberland Miners’ Association, and was one of those from whom the final selection of Parliamentary candidate for the Wans- beck Division was made. Mr. T. C. Hutchinson, managing director of the Skinnin- grove Iron Company, died last week, after a long illness, at the age of 78 years. Mr. Hutchinson had been president of the Cleveland Institution of Engineers and the Cleve- land Ironmasters’ Association, and was a prominent member of the Iron and Steel Institute. To the latter organisation, he contributed this year a paper on “ Fuel Economy in Blastfurnaces.” Mr. Henry Westlake, who died at Skellow Hall, Doncaster, aged 72, was joint managing director of the Staveley Coal and Iron Company Ltd. Mr. Westlake had been associated with the Staveley Company for over half a century. His connection commenced when he was about 20 years of age, his first appointment being that of confidential clerk to Mr. C. Markham, father of the present chairman of the company. During the 50 years the com- pany has made remarkable strides, particularly in the by-product and chemical departments. Mr. Westlake was also a director of the Parkgate Steel Company, the Wagon Finance Corporation, the Brodsworth, Bullcroft, Newstead, and Ramcroft colliery companies, and other industrial concerns. Up to recently he was a director of Messrs. Cammell, Laird and Company, and the Workington Iron and Steel Company. Mr. Thomas M. Percy, J.P., aged 68, general manager of the iron smelting and steel works of the Wigan Coal and Iron Co. Limited, died on Tuesday from influenza and pneu- monia. For a long period he occupied the position of chairman of the Ince-in-Makerfield District Council. Phthisis in Ganister Mines.—Mr. Herbert Smith, Mr. Fred Hall, Mr. Sam Roebuck, and two other representa- tives of the Yorkshire Miners’ Federation, saw Mr. Brace, Under-Secretary for the Home Office, on Tuesday, and discussed with him in detail the scheme for preventing miners’ phthisis in the Yorkshire ganister mines, and for aiding its victims. Partnerships Dissolved. — The London Gazette an- nounces dissolution of the partnership of C. E. Hallett (who continues the business) and H. M. Rumball, trading as Hallett and Company, coal and coke merchants, Sand- wich and Deal ; also P. J. Pemberton Pemberton (de- ceased) and H. W. Pemberton, trading as James Thompson and Sons, coal merchants, Guiseley, Menston, and else- where. Coke in New South Wales.—Considerable activity is now being displayed in the manufacture of coke in New South Wales. Slightly over ten years ago large quantities of coke were imported from the United Kingdom, but this trade has now entirely ceased. For many years there was a strong prejudice against the locally manufactured article, but, judging from the greatly increased production, this has now entirely disappeared. Greater care is now exer- cised in its manufacture, and the employment of a better class of coal and appliances for cleaning it, together with the employment of first-class kilns, has resulted in the production of an article the excellent qualities of which are fully appreciated. All the coke produced is stated to be suitable for use in blast furnaces, being hard and able to carry a load in the furnace. The quantity pro- duced in 1917 was 455,587 tons, and the value £541,093, being at the rate of 23s. 9d. per ton at the ovens. The output shows an increased production over that of 1916 of 18,000 tons, and an increase in value of 6s. per ton. The total number of ovens built and in course of building is 1,233, and the number of persons engaged in the manu- facture of coke is 658. The coke works are all within a radius of 60 miles of Sydney.