668 THE COLLIERY GUARDIAN. March 26, 1915. No. 47. TH E COLLI ERY GUARDIAN MONTHLY LIST OF RECENT COAL LITERATURE I.—General. Our Mineral Resources and the Problem of their Proper Conservation. F. D. Adams. “ Canad. Min. Inst. Bull.,” March, p. 133. (Addr. before Commission of Conservation.) E. E. White Coal Company Mines. G. D. Evans. “ Coll. Engin.,” March, p. 401; 9 fig. (Mines in the New River, W. Va. Field.) Coal Waste in Canada and its Conservation Problem. F. D. Adams. “ Canad. Engin.,” Feb. 18, p. 272. (From a report to the Commission of Conservation, Canada.) Co-operation between the Physicist and the Engineer. C. Hering. “ Engineering,” March 5, p. 284. (Paper read before Amer. Assoc. Advancement of Science.) The Prussian Mining Industry and Administration in 1913 (Die Bergwerksindustrie und Bergverwaltung Preussens im Jahre 1913). “ Z. B. H. S.,” vol. 62, No. 4, pp. 367-410. The Politico-Economic Importance of Mineral Deposits (Die Volks wirtschaftlichc Bedeutung der Mineral- ischen Bodenschatze). —. Oebbeke. Techn. Bl.,” Feb. 27, pp. 23-24. II. —Education. The Training of Mining Engineers. R. W. Dron. “Trans. Inst. Min. Engin.,” v. 49, 1, p. 187. Some Notes on the Education of the Colliery Manager. J. Gibson. “ Trans. Inst. Min. Engin.,” v. 49, 1, p. 195. III. —Geology. The Use of Thickness Contours in the Valuation of Lenticular Coal Beds. G. R. Rogers and C. E. Lesher. “Econ. Geol.,” Dec. 1914, p. 707; 3 pl. The Geology of the South Wales Coalfield : The Pem- brokeshire Area. “ Colliery Guard.,” March 19, p. 613; 2 fig. Coal. G. Knox. “ Journ. Monm. Coll. Offi. Assoc.,” Feb., p. 99. Saskatchewan Lignite. S. M. Darling. “ Canad. Min. Inst. Bull.,” Feb., p. 17. On Certain Coals of the Cretaceous Formation (Zur Kenntnis einiger Kohlen der Kreideformation). Donath and Rzebak. “ Mont. Rdsch.,” Feb. 1, pp. 71-74. Identification of Fossil Coals (Beitrage zur Kenntnis fossiler Kohlen). —. Weithofer. “ Mont. Rdsch.,” Feb. 16, pp. 107-10; March 1, pp. 132-42. The Origin of Coal (Zur Entstehung der Kohlen). —. Rosenthal. “ Braunk.,” Feb. 12, pp. 611-14. The South Wales Coalfield : Part III. FI. K. Jordan. “ Proc. S. Wales Inst. Engin.,” v. 31, 1. p. 49; 13 fig- IY.—Mine Surveying. Compass Surveying. R. Bowen. “ Coll. Engin.,” March, p. 417; 3 fig. Y.—Mine Technology. Spring Pressures on Cams. “ Engineering,” March 19, p. 313; 6 fig. (A simple method is shown of finding directly the acceleration at any point in the travel of the roller, and by determining the accelerations for three or four “ vital ” points a diagram can be con- structed showing at once what spring pressure is necessary.) Bevel Tooth Gearing. “ Pract. Engin.,” March 11, p. 120; 11 fig. Elements of Bearing Design and Lubrication. W. Foot.. “ Vulcan,” March, p. 191; 11 fig. YI.—Working of Minerals. Scientific Pillar Robbing Increases Coal Recovery. “ Black Diamond,” March 6, p. 181; 1 fig. (Poca- hontas method employed in W. Va.)' A Review of Progress on the Lake Superior Iron Ranges. G. E. Edwards. “ Min. Eng. Wld.,” March 6, p. 449; 26 fig. The Reduction in Working Costs at the Coal Face. S. H. Cashmore. “ Colliery Guard.,” Feb. 26, p. 439. “ Trans. Inst. Min. Engin.,” v. 49, 1, p. 63. (Abst. paper read before S. Staffs. Inst. Min. Engin.) The Sullivan Coal Cutter. “ Colliery Guard.,” Feb. 26, p. 437; 10 fig. Rescuing an Iowa Mine with Ironclad Coal Cutters. J. A. Noyes. “ Mine and Quarry,” Feb., p. 835; 5 fig. Working with a New Type*of Coal Cutter. J. G. Bart. “ Coal Age,” Feb. 27, p. 370; 3 fig. Longwall Conveyor and Loader for Thin Seams. J. Dickson. “ Coal Age,” Feb. 27, p. 368; 3 fig. Equipment and Operation of a New Utah Mine. W. W. Jones. “ Coal Age,” Feb. 27, p. 362; 12 fig. Coal Mining Practice in District III., Illinois. S. O. Andros. 30pp.; 9 fig.; 11 tabl. (“Bull. 9,” issued by Illinois Coal Min. Invest, Co-op; Agreemt.) Re-opening the Grayson Mine in Illinois. E. C. Lee. “ Coal Age,” Feb. 20, p. 322; 3 fig. YII.—Boring, Shaft Sinking, and Tunnelling. Lining Shafts with Ferro-Concrete Segments of Z Section. M. Gillieaux. “ Colliery Guard.,” March 19, p. 595; 10 fig. Two New Sullivan Drills. “ Mine and Quarry,” Feb., p. 851; 6 fig. (The Sullivan “ rotator,” with auto- matic rotation of drill steel, retainer to hold drill steel in place, automatic lubricator, and positive rotation, with absence of separate rifle-bar; and a new mounted hammer drill for drilling up to 12 ft., water and Mr being used to clear out cuttings.) A Modern Rotary Drill. H. R. Hughes. “ Trans. Amer. Inst. Min. Engin.,” March, p. 629; 5 fig. Use of Concrete Underground. H. T. Mercer. “ Coll. Engin.,” March, p. 419; 8 fig. (Paper read before Lake Superior Min. Inst. Describes methods in use in shafts in Copper country.) YIII.—Explosives, Blasting. Explosives in the Albertan Coal Fields. J. Ashworth. “ Mine, Quarry, and Derrick,” Feb. 17, p. 68. IX.—Timbering, Packing, etc. Some Notes on Supporting the Roof in Coal Mines. F. N. Siddall. “ Colliery Guard.,” March 12, p. 539. (Abst. paper read before Manchester Geol. Min. Soc.) The Theory of the Arch in Alining. B. S. Randolph. “ Coll. Engin.,” Alarch, p. 427; 5 fig. X. —Surface Arrangements. New Coal Storing Plant at the Alexander Pits, Ossegg (Fine moderne Deponierungseinrichtung auf den Alexanderschachten in Ossegg). —. Rosenberger. “ Z. Bergb. Betr. L.,”"Feb. 1, pp. 37-48; illus. XI. —Winding and Haulage. Eight-ton Winding Gear for the East Rand Proprietary Mines. “ Engineering,” Alarch 19, p. 318; 7 fig. Safety Conditions for Wire Rope in Aline Hoists. J. B. Richards. “ Coal Age,” Alarch 6, p. 425. Reliable Inclined Plane Equipment. “ Coal Age,” Alarch 6, p. 423; 3 fig. Coal Transportation in Eastern Kentucky Alines. M. Pretin. “ Coal Age,” Alarch 6, p. 419; 2 fig. (Roller bearing wheels enable a saving of more than 1c. per ton.) Electric Gathering Locomotives. E. C. de Wolfe. “ Coal Age,” Alarch 6, p. 415; 9 fig. Economy in Aline Haulage. R. S. Richards. “ Coal Age,” Alarch 6, p. 413; 2 fig. (Storage battery loco- motives reduce cost, as compared with borse and mule haulage, about three-fifths.) Gasoline Mine Haulage as Compared with Alule Haulage. “Coal Age,” Alarch 6, p. 412; 2 fig. (Shows difference in favnir of mechanical haulage of 19-17c. per ton mile.) An Improved Type of Two-speed Hoisting and Hauling Engine. J. E. Werner. “ Coal Age,” Alarch 6, p. 410; 1 fig. Determination of the Weight of Aline Locomotives. G. Bright. “ Coal Age,” March 6, p. 407; 1 fig. Electric Shaft Hoists Installed by the Lehigh Coal and Navigation Company. R. E. Hobart. “ Coal Age,” March 6, p. 402; 9 fig. A Safety Appliance for Underground Slopes. W. AIcAIahon. “ Coal Age,” Feb. 20, p. 321; 1 fig. Simultaneous Working and Concentrating the Haulage of Coal in a Group of Steep Seams (Gleichzeitiger Abbau und Konzentrierung der Forderung innerhalb einer steil gelagerten Steinkohlenflozgruppe). ■—■. Kirschner. “ Alont. Rdsch.,” Feb. 16, pp. 101-7; illus. (Alethod adopted at the Innag Pit, Mahrisch- Ostrau.) The Lateral Friction of Winding Ropes. H. W. G. Halbaum. “ Trans. Inst. Alin. Engin.,” v. 49, 1, p. 125; 4 fig. XII. —Signalling. Linneker and Adams’ Alechanical Bell Cancelling Gear for Visible Signals. “ Colliery Guard.,” Feb. 26, p. 451; 3 fig. Electric Signalling in Collieries. “ Engineering,” March 12, p. 302. Winding Engine Signals. W. H. Davis. “ Trans. Inst. Min. Engin.,” v. 49, 1, p. 154; 10 fig. XIII. —Lighting. Notes on Glass. “Nature,” March 18, p. 79. (Nat. Phys. Lab. research; deals with miners’ lamp glasses.) Best’s Improved Flame Safety Lamp. “Colliery Guard.,” March 19, p. 596. The Electric Safety Lamp. J.’ George. “ Iron Coal Tr. Rev.,” March 19, p. 410. (Paper read before Nat. Assoc. Coll. Man.) One Year’s Experience with Ceag Electric Safety Lamps. C. Johnson. “ Iron Coal Tr. Rev.,” Alarch 5, p. 339. (Paper read before Nat. Assoc. Coll. Man.) Experiments with Benzine Substitutes for Aimers’ Lamps (Versuche mit Ersatzstoffen fiir Wetterbenzin- lampen). C. Beyling. “ Gluckauf,” Feb. 13, pp. 157-64. Alixture of Benzine and Benzol for Safety Lamps (Alischung von Wetterlampbenzin mit Benzolvorlauf). K. Dobbelstein. “ Gluckauf,” Feb. 13, pp. 164-65. Experiments with Benzine Substitutes for Safety Lamps at the Shamrock Colliery (Versuche mit Ersatzmitteln fiir Wetterlampbenzin auf der Zeche Shamrock). . G. A. Meyer. “ Gluckauf,” Alarch 6, pp. 233-35. XIY.—Ventilation. Concrete in Aline Work. S. Reynolds. “ Coll. Engin.,” Alarch, p. 407; 2 fig. (Alethod of building stoppings.) Aline Ventilating Fan. “ Engineering,” Alarch 5, p. 270; 9 fig. (Large double-inlet Keith and Black- man for a S. Wales colliery.) XY.—Mine Gases, Testing. Smoke as a Factor Complicating Carbonic Oxide Poison- ing in Colliery Disasters. E. Emrys-Roberts. “ Brit. Aled. Journ.,” Alarch 20, p. 500. Firedamp : Its Detection and Estimation. W. H. AIcAIillan. “ Colliery Guard.,” Alarch 12, p. 544. XYI.—Coal Dust. Coal Dust Explosions. J. D. Alorgan. “ Colliery Guard.,” Alarch 19, p. 593; 15 fig. (Abst. paper read before N. Staffs. Inst. Alin. Engin.) XYII.—Explosions. Some Notes on the Explosion at YVharncliffe Silkstone Colliery. L. T. O’Shea. “ Colliery Guard.,” Alarch 5, p. 503. (Abst. paper read before Midland Inst. Alin. Engin.) The Nature of Explosions. H. B. Dixon. “ Colliery Guard.,” Feb. 26, p. 441; “ Trans. Inst. Min. Engin.,” v. 49, 1, p. 214., (Lecture before N. Staffs Inst. Alin. Engin.) Details of Some of the Principal Explosions in Prussian Alines in 1913 (Alitteilungen uber einige der bemer- kenswertesten Explosionen beim Preussischen Stein- kohlenbergbau im 1913). “ Z. B. H. S.,” vol. 62, No. 4, pp. 339-42; illus. Firedamp Explosion at the Minister Achenbach Colliery, Dortmund, on January 30, 1914 (Die Schlagwetter- explosion auf dem Steinkohlenbergwerk Minister Achenbach I/II bei Dortmund am Januar 30, 1914). —. Weber. “ Z. B. H. S.,” vol. 62, No. 4, pp. 428-42; illus. XYIII.—Mine Fires. The Use of Flue Gas for Fire Extinction and Fumiga- tion. G. Harker. “Journ. Soc. Chem. Ind.,” Feb. 27, p. 157; 2 fig. The Absorption of Oxygen by Coal. II. : The Quantity of Oxygen Absorbed. T. F. Winmill. “ Trans. Inst. Min. Engin.,” vol. 48, 3, p. 503. III. : The Thermal Value of the Absorption. T. F. Winmill. ibid, p. 508. IV. : The Influence of Temperature. T. F. Winmill. ibid, p. 514. V. : The Influence of Temperature on the Rates of Absorption by Different Parts of the Barnsley Bed. J. I. Graham. ibid, p. 531; 1 fig. The Absorption of Oxygen by Coal : Part VII.—The Influence of Moisture upon the Rate of Absorption, and the Question of Bacterial Oxidation. J. I. Graham. “ Trans. Inst. Alin. Engin.,” v. 49, 1, p. 35. The Supply of Air during Pit Fires and after Shot-Firing (Die Wetterfuhrung bei Branden und nach Spreng- schlagen). —. Ryba. “ Z. Bgb. Betr. L.,” Alarch 1, pp. 73-77; illus. XIX.—Rescue and Ambulance. An American Rescue Scheme. “ Colliery Guard.,” March 19, p. 614. New Rescue Station at Denton. “ Colliery Guard.,” March 12, p. 545. Schemes of Training and Practice in Rescue Work. “ Colliery Guard.,” Alarch 5, p. 493. Central Aline Rescue Station at Edinburgh. “ Colliery Guard.,” March 5, p. 487; 5 fig. A New Auxiliary Breathing Apparatus. . “ Fireman,” March 1, p. 171; 2 fig. (New half-hour apparatus designed by Merryweather, especially for fire brigade work.)