November 26, 1915. THE COLLIERY GUARDIAN 1101 No. 55. TH E COLLI ERY GUARDIAN MONTHLY LIST OF RECENT COAL LITERATURE I.—General. The Coal Deposits of Spitzbergen (Die Kohlenlager Spitzbergens). “ Z. Bergb. Betr. L.,” Oct. 1, p. 261; Oct. 15, p. 277. The Formation of Coal Seams in the Light of Recent Miscroscopic Investigations. J. Lomax. “ Trans. Inst. Min. Eng.,” vol. 50, part 1, p. 127; 53 fig. Coal Mines Inspection in 1914. “ Colliery Guard.,” Oct. 29, p. 889; Nov. 5, p. 941. (Northern Division.) Coal Mining Organisation Committee : Digest of the Evidence. “ Colliery Guard.,” Oct. 29, p. 876 (H. E. Mitton and H. Greig); Nov. 5, p. 929 (W. House, G. Barker, D. Shaw, and Sir D. M. Stevenson). The Production and Properties of Electrolytic Copper. B. Welbourn. “ Colliery Guard.,” Nov. 19, p. 1028. (From a paper read before the Manchester Section of the Inst. Electr. Engin.) On the Flow of Energy through Transmission Lines. R. A. Philip. “ Colliery Guard.,” Nov. 12, p. 978; 5 fig. (From a paper read before the Chicago Section of the Amer. Inst. Electr. Engin. and the Western Soc. of Engin.) More About the Ombrone Lignite Deposits (Ancora per i Giacimenti Lignitiferi dell’ Ombrone). G. Pulle. “ Rass. Miner.,” Oct. 16, p. 69. Miscellaneous Mine Accidents. G. E. Hutton. “ S. Afric. Min. JI.,” Oct. 2, p. 114. (Travelling by ladders, overwinding.) The Pittsburg Coal Field in Western Pennsylvania. H. A. Kuhn. “Iron Coal Tr. Rev.,” Nov. 5, p. 565; 2 fig. (Trans. Amer. Inst. Min. Engin.) The Mineral Riches of Brazil (Die Mineralreichtumer Brasiliens). —. Simmersbach. “ Kohle Erz.,” Oct. 4, p. 457. (Coal, etc.) III.—Geology. Basement Rocks of the Bunter. G. M. Cockin. “ Colliery Guard,” Oct. 29, p. 875. (From a paper read, before the South Staffs, and Warwick. Inst, of Min. Engin.) Problems of the South Lancashire Coal Field. G. Hickling. ‘‘Colliery Guard,” Nov. 12, p. 975; Nov. 19, p. 1029, 1 fig. (From a paper read before the Manchester Geol. and Min. Soc.) Coal Measures of the Croxteth Park Inlier. G. Hickling. “ Colliery Guard.,” Nov. 12, p. 975. (From a paper read before the Manchester Geol. and Min. Soc.) The Fauna and Stratigraphy of the Kent Coal Field. (Discussion by W. Hind, D. M. Watson, A. Strahan, and H. Bolton). “ Colliery Guard.,” Nov. 19, p. 1025. V.—Mining Technology. Organisation of Mining Industry. T. C. Futers. “ Colliery Guard.,” Oct. 29, p. 873. (From a paper read before the N. Staffs. Inst, of Min. and Meeh. Engin.) Year Book of Mining, Metallurgy, Electricity, etc., in Spain (Anuaria de Mineria, Metalurgia, Electricidad y Demids Industrias de Espana). A. Contreras and R. Oriol. Vol. 15, 1915. Madrid : E. Teodoro. (7 pesetas.) Basic Principles of Mining Cost. J. R. Finlay. “ Sch. Mines Qly.,” No. 3, p. 193. Modern Mine Plant Design. M. L. Hyde. “ Coal Age,” Nov. 6, p. 742; 5 fig. Insuring the Coal Supply. H. J. Edsall. “ Coal Age,” Nov. 6, p. 749; 17 fig. Susquehanna’s Safety Methods. R. D. Hall. “ Coal Age,” Nov. 6, p. 765; 8 fig. VII.—Boring, Shaft Sinking, and Tunnelling. Lining Shafts with Concrete Z-Blocks. M. Gilleaux. Trans. Inst. Min. Eng., vol. 50, pt. 1, p. 51; 13 fig. Collapse and Recovery of Central Incline Shaft, Bantjes Consolidated Mines Limited. P. Cazalet and W. W. Lawrie. “ Colliery Guard.,” Nov. 5, p. 928; 13 fig. (From “ Journ. S. Afric. Inst. Engin.”) VIII.—Explosives, Blasting. Firing Chlorate Explosives without Detonators (Sprengen von Chloratsprengistoffen ohne Verwendung von Sprengkapseln). —. Penkert. “ Kohle Erz,” Nov. 1, p. 505; illus. (Ignition by the sparks from the fuse. Trials in Upper Silesian coal mines.) Trinotrotoluene. M. Copisarow. “ Chem. N.,” Nov. 19, p. 247. IX.—Timbering, Packing, etc. Stresses in the Mine Roof. R. D. Hall. “ Colliery Guard.,” Nov. 5, p. 925; 18 fig. (From a paper read before the Amer. Inst. Min. Engin.) Steel Mine Timbering. S. Fray, junr. “ Coal Age,” Nov. 6, p. 757; 2 fig. XI.—Winding and Haulage. Recent Improvements in Face Conveyors (Die neueste Fortschritte der Maschinellen Abbauforderung). —. Gerke. “Bergb.,” Oct. 7, p. 603; Oct. 14, p. 619; Oct. 21, p. 635; Oct. 28, p. 651; illus. Electrically-operated Cage Loading Devices (Forderkorb- beschickungsvorrichtungen mit elektrischem Antrieb). —. Wintermeyer. “ Mont. Rdsch.,” Oct. 16, p. 677; illus. (Particularly the Jarzombeck’ loader, in which the motor is mounted on the pusher truck.) Compressed Air Haulage in Scotland. “ Colliery Guard.,” Nov. 12, p. 980; 4 fig. XII.—Signalling. A New Battery Signalling Bell. W. M. Thornton. Trans. Inst. Min. Eng., vol. 50, pt. 1, p. 19; 9 fig. Modern Appliances for Illumination of Mines. R. P. Burrows. “ Min. and Eng. Wld.,” Nov. 6, p. 729; 5 fig. The New Gas-Filled Electric Glow Lamps (Ueber die neuern elektrischen Gluhlampen mit Gasfiillung). —. Pirani and Meyer. “ E. T. Z.,” Sept. 30, p. 507; illus. XIV.—Ventilation. Development in Mechanical Ventilation Hygienically. J. Keith. “ Colliery Guard.,” Nov. 5, p. 927; 8 fig. (From a paper read before the Inst. Marine Engin.) XVI.—Coal Dust. Experiments with Coal Dust at the Derne Gallery. “ Colliery Guard.,” Oct. 29, p. 875. (From “ Gliickauf.”) American Coal Dust Experiments. G. S. Rice and L. M. Jones. “ Colliery Guard.,” Nov. 19, p. 1041; 3 fig. (From U.S. Bureau of Mines Technical Paper No. 85.) XVIII.—Mine Fires. Treating a Gob Fire in Northumberland. “ Colliery Guard.,” Oct. 29, p. 879; 1 fig. XIX.—Rescue and Ambulance. The Use and Preparation of Liquid Air in English C\.al Mining (Die Verwendung und Herstellung fliissiger Luft im Englischen Steinkohlenbergbau). —. Schulz. “ Techn. Bl.,” Oct. 23, p. 169. (Prepara- tion and use of liquid air in rescue work.) Accident Prevention and First-Aid. H. S. Salmon. “ Coal Age,” Nov. 6, p. 767. XXI.—Preparation. New Washery, Coking and By-Product Plant at Tinsley Park Colliery. “ Iron Coal Tr. Rev.,” Nov. 12, p. 593; 14 fig. Coal Screening. J. Robertson. “ Iron Coal Tr. Rev.,” Oct. 22, p. 508. (Paper read before Nat. Assoc. Coll. Man.) XXIII.—Coke Ovens. Determination of Benzol in Gas (Benzolbestimming in Gas). —. Neubeck. “ Journ. Gasbel.,” Oct. 16, p. 616. Naphthalene as Fuel for Internal Combustion Engines (Das Naphthalin und seine Verwendung insbesondere als Treibmittel fiir Explosions-Kraftmaschinen). —. Bruhn. “ Journ. Gasbel.,” Oct. 9, p. 592; illus. High Power Gas Engines (Ueber Grossgasmaschinen). —. Schapira. “ Oel. u. Gasmasch.,” Oct., p. 49; ilus. Tar Dehydration. E. V. Chalmers. (Paper before Manchester District of Gas Engin.) “ Iron Coal Tr. Rev.,” Nov. 5, p. 568; 2 fig. Common Difficulties on By-Product Coke Oven Plants •. Their Causes and Remedy. “ Gas Wld.,” Nov. 6 (Coking Section) p. 12 (Gas Regulating). Increasing the Yield of Hydrocarbons in Gas and Tar. “ Gas Wld.,” Nov. 6 (Coking Section) p. 14. XXIV.—Fuels, Testing, etc. Velocity of Ignition of Combustible Gas Mixtures (Die Zundgeschwindigkeii brennbarer Gasgemische). —. Nueselt. “ Z. D. Ing.,” Oct. 23, p. 872; illus. Apparatus for Measuring the Pressure and Velocity of Gases (Messgerate fiir Druck und Geschwindigkeit von Gasen). —. Stach. “ Z. d. Ing.,” Oct. 9, p. 832; Oct. 23, p. 871; Oct. 30, p. 894; illus. Distillation Tests on German Coal (Destillationsunter- suchungen deutscher Steinkohlen). —. Simmersbach and Ziem. “St. u. E.,” Nov., p. 1122; illus. Burning Mixed Gaseous and Solid Fuel (Mischungs- verbrennung). —. Dosch. “ Feuerungstechn.,” Oct. 15, p. 21; illus. Gaseous Combustion. W. A. Bone. “ Chem. News,” Oct. 29, p. 211. (Address to Chem. Sectn. Brit. Assocn.) Fuel Economy and the. Proper Utilisation of Coal. W. A. Bone. “ Chem. News,” Nov. 5, p. 223. (Address to the Chem. Sectn. Brit. Assocn.) Power from Waste Fuel. F. F. Mairet. “ Colliery Guard.,” Nov. 19, p. 1030; 1 fig. (From a paper read before the Midland Inst. Min. Civ. and Meeh. Engin.) Combustion and Smokeless Furnaces. J. W. Hays. Second edition; 116 pl., 21 illus. Chicago: J. W. Hays. (2 dols.) Fuel Economy. W. A. Bone. “ Colliery Guard.,” Nov. 19, p. 1027. (From a paper read before the N. Staffs. Inst. Min. and Meeh. Engin. and Engl. Ceramic Soc.) Pulverised Coal for Copper Smelting. N. L. Warford. “ Min. and Eng. Wld.,” Nov. 6, p. 721; 7 fig. Chart of Relative Values of Fuels. R. A. Rover. “ Power,” Sept. 28, p. 441. Sub-bituminous Coal and Sawmill Waste in Producer Plant. G. S. Wilson. “ Power,” Sept. 28, p. 442. XXV.—Steam Engines and Boilers : Gas Engines. Recent Patents on the Firing of Boilers (Neue Patente auf dem Gebiet der Dampfkesselfeuereung). —. Pradel. “ Z. Dampfk. Betr.,” Oct. 1., p. 331; Oct. 15, p. 347; Oct. 22, p’. 355; illus. Improvements in Ash Conveyors (Neuerungen auf dem Gebiet der Ascheabfuhr). —. Pradel. “ Braunk.,” Oct. 15, p. 339; Oct. 22, p. 351; illus. Firing Trials in Double Boilers (Anheizversuche an Doppelkesseln). —. Loschge. “ Z. Bayer. Rev. V.,” Sept. 30, p. 151; Oct. 15, p. 158; illus. Utilising Waste Heat in Modern Power Plant (Die Abwarmeverwertung im neuzeitlichen Kraftbetrieb). —. Schapira. “Feuerungstechn.,” Oct. 15, p. 17; Nov. 1, p. 30; illus. (Steam raising with blast- furnace and coke-oven gas.) The Development of the Waste-Heat Accumulator (Zur Entwicklung des Abdampspeicherbaues). —. Blau. “ Z. Dampfk. Betr.,” Oct. 29, p. 361; illus. Boiler Troubles : Their Causes and Prevention (Dampf- kesselschaden, deren Ursachen und moglichste Verhutung. G. Frantz. 194 pp., 9 fig., Kattowitz, 1915, Gebr. Bohm. (2-50 mk.) Design of Surface Combustion Appliances. C. E. Lucke. “ Sch. Mines Qly*,” No. 3, p. 233; 20 fig. Boilers, Economisers and Superheaters : Their Heating Power and Efficiency. R. H. Smith. Crosby Lock wood and Son, London. (7s. 6d. net.) A Serviceable Coal Chart. “ Power,” Sept. 28, p. 456. (Showing cost of steam from given grade of coal under various conditions.) XXVI.—Compressed Air. Operation and Construction of Non-Return Valves in Positive Valve Gears for Compressors (Wirkungsweise und Konstruktion der Ruckschlagklappen von zwang- laufigen Kompressorsteurerungen). —. Kasten. “ Z. Komp. Gase.,” Sept., p. 129; illus. Centrifugal Air Compressors : Surging Effects. “ Pract. Engin.,” Oct. 28, p. 281; 4 fig. XXVII.—Electricity. Experiments with a Polyphase Direct-Current Converter (Versuche mit einem Drehstrom - Gleichstrom Umformer. —. Holmboe. “E.T. Z.,” Oct. 14, p. 533; illus. (Consists of a 3,000 kw. direct-current generator and a 3,500 kw. asynchronous motor.) Supplying Electric Energy to the Environs of Briquette Works (Versorgung der Umgegend von Brikett- fabriken mit elektrischer Energie). —. Knust “ Braunk.,” Oct. 8, p. 327; illus. (Briquette works as power stations.) Practical Points in Connection with the Use of Elec- tricity in Mines. R. R. Smith. “ Iron Coal Tr. Rev.,” Oct. 29, p. 543. (Paper read before Lancashire branch of the National Assocn. of Colliery Managers.) The Development of Electricity in the Scottish Mining Industry. A. B. Muirhead. “ Iron Coal Tr. Rev.,” Oct. 22, p. 511. (Paper read before Assoc. Min. Elect. Engin.) XXVIII.—Surface Transport and Storage. Coal Shipping Plant at Baltimore. “ Colliery Guard.,” Nov. 12, p. 977: 2 fig. Coal Breaker and Scraper. J. P. Considine. “ Power,” Oct. 12, p. 502; 3 fig. (To break up frozen coal in railway wagons.) XXIX. —Sanitation, Diseases, etc. Industrial Accidents and Diseases : Examination of the Eye. F. Shufflebotham. “ Colliery Guard.,” Nov. 5, p. 927. (From a discussion at the Oxford Ophthalmological Congress.) XXX. —Mining Laws, Royalties. Changes in the Prussian Mining Law during the Past Fifty Years (Das Preussische Allgemeine Berggesetz einst und jetzt). —. Voelkel. “ Z. Bergr.,” No. 4, p. 472.