478 THE COLLIERY GUARDIAN. February 27, 1914. Air-Consumption and Maintenance Costs of Rock Drills. K. Austin. “ S. Afric. Min. JI.,” vol. 23, 1161, p. 414. Air-Consumption and Maintenance Costs of Rock Drills. “ JI. S. Afric. Inst. Eng.,” vol. 12, 4, p. 81-94; 4 fig. Shaft Sinking under Difficulties. C. A. Hirschberg, “ Coal Age,” vol. 4, 22, p. 803-4. (In the western part of the Pocahontas field great difficulty is experienced in reaching the coal measures on account of the amount of water encountered.) Sinking a Shaft, for Storing Goaf Packing Material, by the Compressed-Air Process. Brewer. (Das Abteufen eines Vorratsschachtes fur Versatzgut nach dem Pressluftverfahren.) “ Gliickauf,” vol. 49, 41, p. 1688- 92; ill. What Success is to be Expected from the Use of Electrical Resistance Thermometers in Deep Bore Holes? K. Flegel. (Welch e Erfolge sind bei Anwendung des elektrischen Widerstandsthermo- meters zu Temperaturmessern in Tiefbohrloechern fuer die Theorie und Praxis zu erwarten ?) “ Gliick- auf,” vol. 49, 45, p. 1847-51; ill. The Application of the Freezing and Concreting Method in Sinking the “Wendland” Shaft. Barry and Jacobovics. (Die Anwendung des Gefrier- und Zementierverfahrens beim Abteufen des Kali- schachtes Wendland.) “ Gliickauf,” vol. 49, 46, p. 1885-92; ill. Economic Advantages in the Use of Concrete in Mining. (Wirtschaftliche Vorteile durch Vervendung von Beton im Bergbau). “ Kali Erz Kohle,” 1913, p. 1251. Electricity in Mine-sinking operations. “ Engineering,” February 20, 1914, p. 260. VIII. —Explosives, Blasting. The Analysis of Black Powder and Dynamite. Snelling and Storm. “ U.S. Bur. of Mines ” ; ill., 80 p. Wesley. Investigations of Detonators and Electric Detonators. Hall and Howell. “ U.S. Bur. of Mines,” 8vo ; ill., 73 p. Wesley. Explosives in Hand and Machine Labour Stopes. T. H. Delprat. “ JI. Chem. Soc. S. Africa.,” vol. 14, 5, p. 241-4. Hints to Handlers of Explosives. W. J. Olcott. “ Min. Eng. World,” vol. 39, 26, p. 1151-2. IX. —Timbering, Packing, &c. Notes on the Working o f the S t. Nicholas Pit of the Societe des Charbonnages de 1’Esperance et Bonne Fortune, near Liege, Belgium, with Special Reference to the Hydraulic Packing of the Goaf. L. D. Ford. “ Trans. Inst. Min. Engin.,” vol. 46, 2, p. 439; 10 fig. Pillar-drawing Methods in Fairmont Region. A. W. Hesse. “ Coal Age,” vol. 4, 21, p. 762-3 ; ill. Hydraulic Stowing at Crowgarth Mine, Cleator Moor, Cumberland. “ Birm. Univ. Min. Soc. Mag.,” January 1914, p. 22. The Preservation of Wood. A. J. Wallis-Tayler. “ JI. Roy. Soc. Arts,” February 20, 1914, p. 286. X. —Surface Arrangements Note on the Landres Mines. (Note sur les Mines de Landres.) “ Comp. Rend. Soc. Ind. Min.,” January 1914, p. 20 ; 6 figs. (Owned by Micheville Steelworks : there is an electric winding engine on the Ward- Leonard system.) A Modern Coalmine and its Equipment. G. M. Crawford. “ Mine and Quarry,” January 1914, p. 766 ; 16 ill. (Furnace Run Mines, Armstrong County, Pa.: use of Sullivan coal-cutters, &c.) The Friedrich Heinrich Colliery, Lintfort. (Das Stein- kohlenbergwerk Friedrich Heinrich in Lintfort.) P. Bussing. “ Gliickauf,” February 7, p. 201; Feb- ruary 14, p. 241; February 21, p. 285 ; 27 fig. XI. —Winding and Haulage. Methods of Haulage in Coalmines. J. Shantos. “ Bull. Can. Min. Inst.,” No. 33, 1914, p. 73; 5 diag. The Economy of the Engine Plant of a Silesian Coal- Mine. (Die Wirtschaftlichkeit des Maschinenbetriebes eineroberschlesischenSteinkohlengrube.) K. Schultze. “ Gliickauf,” vol. 49, 45, p. 1842-6. The Use of Gasoline Motors in Coalmines. W. C. Whitcomb. “ Bl. Diam.,” 1913, p. 23. Is. 6d. Electric Mine Haulage. E. A. Lof. “ Colliery Eng.,” vol. 34, 5, p. 301; ill. The Safety Factor of Hauling Ropes. (Der Sicherheits- faktor der Forderseile.) Speer. “ Gliickauf,” vol. 49, 42, p. 1727-34. Skip Hoists. R. Trautschold. “ Canad. Engin.,” vol. 25 21, p. 736-7 ; ill. A Chinese Coal Cable way. A. Gradenwitz. “ Coal Age,” vol. 4, 19, p. 688-90. Some of the Types of Inclined Mine-shaft Rollers. H. L. Botsford. “Min. Eng. World,” vol. 39, 25, p. 1110; ill. Operating Results of Some Shaking - conveyor Installations at Upper Silesian Coalmines. (Betriebs- ergebnisse einiger Schiittelrutscheanlagen auf Oberschlesischen Steinkohlenbergwerken.) G. Richter. “ Gliickauf,” 1913, p. 1717 ; ill. Checking Devices and Automatic Weighing Devices for Haulage Plants. (Kontrolleinrichtungen und selbst- tatige WagenfiirForderanlagen.) O.Brix. “Foider- technik.,” vol. 6, 10, p. 231; 6,12, p. 273-91; ill. Storage Batteries for Mine Locomotives. W. C. Brandt. “ Coal Age.” vol. 4, 23, p. 648; ill. (Lead storage battery, of which the positive plate consists of moulded rubber tubes filled with peroxide of lead and slit horizontally so as to expose the electro-positive element to the action of the electrolyte. The negative plate is a grid casting of an antimony lead alloy, consisting of a series of vertical ribs connected by short horizontal bars.) Underground Haulage. (Les Transports Souterrains.) P. Defize. “ Rev. Univ. Min. Met.,” vol. 4, 2, p. 137-68. (Haulage roads, track, rolling stock. Comparison of benzine, compressed air, and electric locomotives.) Calculation of the Safety Factor of Haulage Ropes, with Separate Consideration of the Load and the Rope Weight. (Die Berechung des Sicherheitsfaktors der Schachtforderseile mit gesonderter Beriicksich- tigung des Gewichts der Forderlast und des Seilge- wichtes.) F. Herbst. “ Gliickauf,” vol. 49, 47, p. 1936-40; ill. Electric Mine Haulage. E. A. Lof. “ Colliery Eng.,” vol. 34, 6, p. 338. (Determining haulage capacity of locomotives ; overhead and track construction; operating troubles; costs of mine haulage.) The Carron Haulage Gears. “ Colliery Guard.,” Feb- ruary 13, 1914, p. 349; 2 fig. XIL—Signalling. Cable Wiring for Mine Telephones. G. Brown. “ Coal Age,” vol. 4, 23, p. 856 ; ill. XIII.—Lighting. Safety Lamps and their Care. J. W. Paul. “ Eng. Mag.,” vol. 46, 2, p. 276-9; 1 fig. Use and Abuse of Acetylene Lamps in Mines. C. T. Rice. “ Min. Eng. World,” vol. 39, 20, p. 885. The Physiological Characteristics of Acetylene with Relation to its Use as an Illuminant in Mines. E. E. Smith. “ Canad. Min. JI.,” vol. 34, 24, p. 785. 'Portable Electric Mine Lamps in Mine Work. H. H. Clark. “ Min. Eng. World,” vol. 39, 23, p. 1019. Design and Maintenance of the Miners’ Electric Lamps. F. J. Turquand. “ Colliery Guard.,” February 20, 1914, p. 400; 9 fig. (Abst. paper read before Assoc. Min. El. Engin.) XI¥.—Ventilation. The Ventilation of Mines. (Etude sur 1’Aerage des Mines.) “ Comp. Rend. Soc. Ind. Min.,” vol. 4, 7, p. 49-51, 8,p. 55-97. (Combined artificial and natural ventilation.) Ventilation of Mines. W. Pile. “ JI. S. Afric. Inst. Eng.,” vol. 12, 4, p. 96-104; 3 fig. Reversing the Ventilation: The Keith Mine Fan. “ Colliery Guard.,” February 6,1914, p. 299 ; 4 fig. Some Experiences in Reversing the Main Air Currents in Coalmines and Mechanical Structures Involved. W. Clifford. “ Colliery Guard.,” February 13, 1914, p. 350. (Abst. paper read before Manchester Geol. Min. Soc.) XV.—Mine Gases, Testing. The Influence of Underground Temperatures upon the Labour Capacity of Miners. J. Cadman. “ JI. State Med.,” February 1914, p. 86. The Firedamp Whistle. Prof. F. Haber. “JI. Soc. Chem. Ind.,” January 31, 1914, p. 54. (Appendix to Hunter Memorial Lecture, “ Modern Chemical Industry,” Liverpool Section, November 26, 1913.) The Effect of Increased Atmospheric Pressure on the Height of the Gas-cap. G. A. Lodge. “ Trans. Inst. Min. Engin.,” vol. 46, 2, p. 311; 4 fig. Firedamp in Coalmines and the Prevention of Explo- sions. J. Harger. “ Trans. Inst. Min. Engin.,” vol. 46, 2, p. 358. Apparatus for the Determination of Carbon Dioxide and Oxygen in Mine Air. D. Burns. “ Trans. Inst. Min. Engin.,” vol. 46, 2, p-. 478 ; 2 fig. Physiological Observations made on Pike’s Peak, Colorado, with Special Reference to Adaptation to Low Barometric Pressures. C. G. Douglas, J. S. Haldane, Y. Henderson, and E. 0. Schneider. “Phil. Trans.,” B. 299. 1913. Safety in Coalmines, a Textbook of Fundamentals for Firemen and other Workers in Mines. D. Burns. London : Blackie and Son. 158 pp.; ill. The Influence of Inert Gases on Inflammable Gaseous Mixtures. J. K. Clement. 8vo, 24 pp. U.S. Bureau of Mines, Techn. paper 43. The Firedamp Whistle. (Die Schlagwetterpfeife.) Beyling. “ Gliickauf,” vol. 49, 50, p. 2049-56. XVI.—Coaldust. French Coal Just Precautions. Pol. Dunaime. “Colliery Engin.,” February 1914, p. 403; 6 fig. A Peculiar Dust Explosion. W. M. Grosvenor. “JI. Soc. Chem. Ind.,” January 31, 1914, p. 60. (Explosion in an American starch factory. Theory that explosion is due to collapse of containing walls through accumulated pressure of the combustion products.) Ooaldust Experiments in the Rossitz-District Experi- mental Gallery. (Versuche mit Kohlenstaub im Versuchstollen des Rossitzer Steinkohlenreviers.) Czaplinski and Jicinsky. “ Oesterr. Z. Berg.-Hutten- wes.,” vol. 61. 48, p. 693-6 ; 49, p. 707-12. Explosions in Mines. H. B. Dixon. “ Colliery Guard.,” February 13, 1914, p. 349. (Lecture at Manchester.) Wet Peat Zones ror Arresting Coaldust Explosions. R. Cremer. “Colliery Guard.,” February 20, 1914, p. 403 ; 1 fig. Automatic Distribution of Stonedust by the Air Current. H. W. G. Halbaum. “ Colliery Guard.,” February 20, 1914, p. 404. (Paper read before N. of England Inst. Min. Engin. with discussion.) XVII.—Explosions. Note on a Mission to Westphalia. (Note sur une Mission en Westphalie.) Remy and Lecrivain. “Ann. Mines,” vol. 5, 1, p. 5 ; 7 fig. and 2 pl. (Study of methods of recovery after accident at Rad bod, de Wendel. Waltrop, Lothringen, and Hamur collieries.) The Pit Disasters in the Last Three Years. Die Gruben- katastrophen in den letzten drei Jahren.) F. Wiessner. “ Bergb.,” vol. 26, 47, p. 777-8. Explosion at Acton, No. 2 Mine, Alhambra. “ Coal Age,” vol. 4, 22, p. 819-21. (The explosion, though severe enough to mutilate several men, did not even stop the fan. No fire resulting, the air- current greatly assisted the work of rescue. The explosion is attributed to use of black powder and shooting off the solid.) Prevention of Dust and Gas Explosions. Geo. S. Rice. “Min. Eng. World,” January 31, 1914, p. 239. Two Recent Coalmining Disasters. R. D. Hall. “ Coal Age,” vol. 4, 20, p. 725-9; ill. (The needs for more safeguards against explosions. Sprinkling with a water car and loading out dust are only palliatives. With the coaldust loaded out is often a great deal of available stonedust, which would tend to prevent an explosion. Some more details relative to two recent explosions at Senghenydd, Wales and Dawson, N.M.) The Cause of Coaldust Explosion. (Die Ursachen der Kohlenstaubexplosion.) “Kali Erz Kohle,” 1913, p. 1217. XYIIL—Mine Fires. The Detection of Gob Fires. J. Harger. “Trans. Inst. Min. Engin.,” vol. 46, 2, p. 370; 1 fig. Pit Fires, their Origin and Extinction, with Special Reference to Fiery Coalmines. (Grubenbraende, deren Entstehung und Gewaeltigung, unter besonderer Beruecksichtigung des Steinkohlenbergbaues und der Schlagwettergruben.) A. Fillunger. “ Oesterr. Z. Berg.- Huttenwes.,” vol. 61, 50, p. 722-5. (Recovery work with and without ventilation of the fire area. Temporary abandonment of the pit. Closing shafts.) Spontaneous Combustion of Coal in Mines. “ Colliery Guard.,” January 30, 1914, p. 242. (Report of Departmental Committee.) Spontaneous Combustion in Coalmines, January 30, 1914, p. 260 ; February 6, p. 315 ; February 13, p. 368; February 20, p. 423. (Digest of Evidence before Committee—C. L. Robinson, H. Johnstone, W. N. Atkinson, and J. T. Greensmith.) XIX.—Rescue and Ambulance Motor Vehicle for Relief Work at Mines. “ Eng. News,” vol. 70, 22, p. 1079. German Rescue Organisation. “ Colliery Eng.,” vol. 34, 5, p. 284. (The development and management of the Mine Life Saving Organisation in the district of the Miners’ Association at Clausthal, Section 3, in the year 1912.) German Rescue Organisation. Breyhan. “ Colliery Eng.,” vol. 34, 6, p. 355. (Method of instruction in use and care of breathing apparatus at the Clausthal Central Station.) Rescue Work on South African Mines. “ S. Afric. Min. JI.,” vol. 23. 1155, p. 259. (Findings of the Natal Commission : Gassing Accidents on the Rand, and the Use of Oxygen.) An Account of the Use of Rescue Apparatus at Lodge Mill Colliery, Huddersfield. W. D. Lloyd. “ Trans. Inst. Min. Engin.,” vol. 46, 2, p. 250. Installing Right and Wrong Rescue Apparatus. J. A. Menaugh. “ Min. Eng. World,” February, 7, 1914, p. 287. (A plea for the mouthpiece type of appliance.) Oxygen Breathing Apparatus. F. W. Gray. “ Canad. Min. JI.,” vol. 35, 1, p. 13. (The controversy of the injector v. the non-injector types.) XX.—Drainage, Pumping, &c. Water Raising and Measurement. W. H. Booth. “ Vulcan,” February 1914, p. 169 ; 5 fig. (Abst. paper read before Assoc. Engin. in Charge.) High - pressure Centrifugal Pumps. (Les Pompes Centrifuges a Haute Pression. Ch. Hanocq. “ Rev. Univ. Min. Met,” January 1914, p. 1; 21 fig. (Results of experiments carried at Liege University—to be continued.) XXI. —Preparation. Coal Washing in Illinois. F. C Lincoln, University of Illinois. Urbana : Chapman and Hall, Lond., 110 p.; 25 fig. (“Univ. Ill. Bull. 69.”) Notes on a New Process for the Washing of Coal at the St. Nicholas Pit of the Societe des Charbonnages de 1’Esperance et Bonne Fortune, near Liege, Belgium. L. D. Ford. “Trans. Inst. Min. Engin.,” vol. 46, 2, p. 433; 17 fig. Short Mountain Breaker. W. Z. Price. “ Colliery Eng.,” vol. 34, 5. p. 267; ill. (A breaker especially built by the Summit Branch Mining Co. to minimise the breakage of soft anthracite.) A New Coal-washing Table. “ Coal Age,” vol. 4, 20, p. 732-3 ; ill. Researches on the Preparation of Fine Coal. (Unter- suchungen uber die Aufbereitung der Feinkohlen.) F. Jiingst. “ Gliickauf,” vol. 50, 1, p. 6-10. XXII. —Briquettes. The Briquette for Saving Fuel Waste. D. A. Willey. “ Colliery Eng.,” February 1914, p. 418; 3 fig. XXIII.—Coke Ovens. Basic Coke. J. R. Campbell. “ Colliery Eng.,” February 1914, p. 409. (Paper read before Coal Min. Inst. Am. : Experiments in removing sulphur from coke by the addition of crushed limestone during manufacture.) A New Type of Coal Compressor. “ Gas World ” (suppl.), February 7, 1914, p. 16 ; 4 fig. (The Meguin magnetic stamping machine.) The Use of Coke-oven Gas as Town Gas and its Distri- bution over a Great Distance. A. Grebel. “ Gen. Civil,” December 13, 1913, p. 127 ; December 20, p. 153; December 27, 1913, p. 173; January 3, 1914, p. 195 ; 20 fig. Fuel Economy on Coke-oven Plants. “ Gas World,” vol. 59, 1533, p. 19 ; ill. Laboratory Work on By-product Coke-oven Plants. “ Gas World,” vol. 59, 1533, p. 11. The Automatic Control of By-product Coke-oven Plants. A. Thau. “ Gas World,” vol. 59, 1533, p. 12. The “ Moore ” Gas-producer. “ G-as World,” vol. 59, 1533, p. 15 ; ill. (Operation with by-product recovery.) Koppers By-product Coke ovens at Llwynypia Colliery. “ Iron Coal Tr. Rev.,” vol. 87, 2388, p. 873-4; 2 fig., 1 pl. Characteristics of Basic Coke. J. R. Campbell. “ Coal and Coke Op.,” vol. 32, 6, p. 89-91.