December 24, 1914. THE COLLIERY GUARDIAN. 1339 Briquetting Plant of the Pacific Coast Coal Company. W. L. Kidston. “Coal Age,’’ Nov. 28, p. 867; 5 figs. (A new plant using asphalt as a binder, and having a capacity of approximately a million briquettes per 10-hour shift.) XXIII.—Coke Ovens. Temperatures in the Manufacture of Sulphate of Ammonia. F. Shewring. “Gas Wld.,’’ Dec. 5, p. 574; 2 figs. Coal Gas Residuals. F. H. Wagner. London : Hill Publishing Company. 8s. 6d. net. Coke Ovens from a Steam-Raising Point of View. K. Huessener. “ Gas Wld.’’ (suppl.), Dec. 5, p. 13. Recovering Residuals by the Feld Process. F. H. Wagner. “ Gas. Wld.’’ (suppl.), Dec. 5, p. 18; 2 figs. (Paper read before Am. Gas. Inst.) United States Coals Available for Export Trade. V. H. Manning. “U.S. Bur. Mines, Bull. 76,’’ 15pp.; 1 map. The Production of Peat in 1913. C. A. Davis. “ U.S. Geol. Survey,’’ II. : 23. The Manufacture of Coke in 1913. E. W. Parker. “ U.S. Geol. Survey,’’ II. : 26. Improvements in Beehive Ovens. “ Coll. Engin.,’’ Dec., p. 247; 5 figs. (McMurray Coke Oven Door; Campbell’s Plastic Door Clay; Stauft Door Remover; Stauft Coke Extractor.) The Removal of Carbon Bisulphide from Coal Gas. E. V. Evans. “ Gas Wld.,’’ Dec. 12, p. 606. (From paper read before Soc. Chem. Ind.) New Coke Oven and By-Product Recovery Installation at Newton Cap Colliery, Bishop Auckland. F. C. Coleman. “Colliery Guard.,’’ Dec. 18, p. 1267; 13 figs. The American Gas Institute’s Refractory Materials Committee : First Report. “ Gas Wld.,’’ Dec. 19, p. 649. The Removal of Sulphur from Gas. G. Anderson. “ Gas Wld.,’’ Dec, 19, p. 636. The Conversion of Ammonia into Nitric Acid or Ammonium Nitrate from the Economic Point of View (Die Ueberfiihrung von Ammoniak in Saljietersaure, bez. Ammonnitrat vom Wirtschaftlichen Stand- punkt). —. Donath. “ Chemische Ind.,’’ Sept., pp. 513-6. XXIV.—Fuels, Testing, etc. TJie Storage of Coal. J. B. C. Kershaw. “ Gas Wld.,’’ Nov. 28, p. 552; Dec. 5, p. 576; Dec. 12, p. 601; 5 figs. Petrol and Petrol Substitute Comparisons. “ Engi- neering,’’ Dec. 11, p. 706. Howard Lectures pn Surface Combustion. W. A. Bone. London : Roy. Soc. Arts. Is. Analyses of Iowa Coals. W. A. Hixson. “ Iowa Geol. Surv. Ann. Report,’’ vol. 24, p. 691. A Study of the Oxidation of Coal. H. C. Porter and 0. C. Ralston. “ U.S. Bur. Mines, Techn. Paper 65,’’ 30 pp., 12 figs. Bituminous Coal Storage. “ Coll. Engin.,’’ Dec., p. 231; 3 figs. (Means of avoiding spontaneous com- bustion; methods of handling.) The Analysis of Coal, with Phenol as a Solvent. S. W. Parr and H. F. Hadley. “ Univ. Illinois Bull.,’’ vol. 12, 10 (Bull. 76, Eng. Exp. Station), 41pp.; 34 figs. (It is concluded that oxygen absorbed is chemically held.) The Limits of Efficiency of Gas Engines. T. B. Morley. “ Engineering,’’ Dec. 18, p. 734; 5 figs. Utilising Waste Heat from Engines for Heating Pur- poses, with Special Reference to the Dimensions of the Heating Surfaces (Ueber die Verwendung der Maschinenabwarme fiir Heiz-zwecke unter besonderer Beriicksichtigung der Heizflachenbemessung). —. Deinlein. “ Z. Bayer. Rev. Ver.,’’ Oct. 31, pp. 130-2; Nov. 15, pp. 197-9. Automatic Pyrometry of Gases in Mining and Metallur- gical Works (Die Selbstatige Heizwertbestimmung von Gasen in Bergwerks- und Hiittenbetrieben). E. Heer. “ Gluckauf,’’ Nov. 14, pp. 1603-4. XXV.—Steam Engines and Boilers. Colliery Lubrication. E. M. Chance. “Coal Age,’’ Nov: 21, p. 821. Boilers, Economisers, and Superheaters; their Heating Power and Efficiency. By R. H. Smith. London : Crosby Lockwood and Son; 128pp.; 7s. 6d. net. A Uniflow Undertype Engine. “ Engineer,’’ Dec. 4, p. 531; 7 figs. Flywheels. III. “Vulcan,” Dec., p. 112; 14 figs. Factors Governing the Combustion of Coal in Boiler Furnaces : a Preliminary Report. J. K. Clement, J. C. W. Frazer, and C. E. Augustine. “ U.S. Bur. Mines, Techn. Paper 63,” 46 pp.; 26 figs. Experiments with Furnaces for a Hand-Fired Return Tubular Boiler. S. B. Flagg, G. C. Cook, and F. E. Woodman. “ U.S Bur. Mines, Techn. Paper 34,” 32 pp.; 4 figs. Power Plant Testing. W. M. Selvey. “ Colliery Guard.,” Dec. 4, p. 1171; 5 figs. (Paper read before Inst. Elect. Engin.) A New Mixed Pressure Turbine Set at the Griff Colliery. J. L. Jeffery. “ Colliery Guard.,” Dec. 1'1, p. 1220; 7 figs. Influence of Superheat Temperature on the Steam Con- sumption of the Engine (Einfluss der Uberhitzungs- temperatur auf den Dampfverbrauch der Dampf- maschinen). —. Kammerer. Nov. 6, pp. 491-4; Nov. 13, pp. 499-501. Modern Condensing Plant for Steam Turbines (Moderne Kondensationsanlagen fiir Dampfturbinen). —. Koeniger. “ Z. Turb. Wes.,” Nov. 10, pp. 457-61. Mechanical Coaling in Boiler Houses (Die maschinelle Bekohlung der Kesselhausor). —. Wintermeyer. “ Fordertechn.,” Nov. 15, pp. 249-52. XXVI.—Compressed Air. The Jaeger Type of Turbine Blower and Compressor (Die Turbinengeblase- und Turbinenkompressorenbau von C. H. Joeger und Co.). —. Mitter. “ Z. V. Deutscher Ing.,” Nov. 21, p. 1573-78. (Jaeger’s experiments, and the practical deductions therefrom in the construction of turbine blowers and com- pressors). XXVII.—Electricity. The Prevention of Electrical Accidents in Mines. T. J. Nelson. “Iron Coal Tr. Rev.,” Dec. 4, p. 701; 16 figs. (Paper read before the Assoc. Min. Elect. Engin.) Mine Motors. E.. Drennen. “ Coll. Engin.,” Dec., p. 241. (Abst. paper read before Kentucky Min. Inst.) Electricity in Coal Mining. E. A. Lof. “ Coal Age,” Dec. 5, p. 894; 13 figs. (Long article desciibing various applications.) Cables. C. J. Beaver. “ Colliery Guard.,” Nov. 27, p. 1131; Dec. 4, p. 1181; 1 fig. (Abst. paper read before Inst. Elect. Engin.) The Use of Electricity in the Liege Coalfield. J. Libert. “ Colliery Guard.,” Nov. $7, p. 1123. (From Bull. Soc. Ingen. Sortis Montefiore Inst.) Electricity in Coal Mining. D. R. Shearer. 84 pp.; 28 figs. New York : McGraw-Hill Book. Company. 6s. 3d. net. XXVIII.—Surface Transport. Failures or Breakdowns of Locomotives—I. R. Weatherburn. “ Engineer,” Dec. 11, p. 547. II., Dec. 18, p. 575; 5 figs. Railway Goods Station Organisation. F. W. West. “ Railway Gaz.,” Dec. 18, p. 642. (From address to Railw. Stud. Assoc.) Coaling Steamers from Barges and Fuel Lighters. C. H. Hughes. “ Coal Age,” Dec. 12, p. 944; 7 figs. XXX.—Mining Laws, Royalties. State Reservation of Mining Properties in Spain. “ Colliery Guard.,” Nov. 27, p. 1133. (From “ Rev. Minera.”) Income-Tax on Mines. W. Sanders. “ Iron Coal Tr. Rev.,” Nov. 27, p. 666. BOOK NOTICES. The Year Book of the Scientific and Learned Societies of Great Britain and Ireland. 31st annual issue. London : Chas. Griffin and Company. Price, 7s. 6d. net. There has never been a time when our scientific societies and institutions have possessed a higher signi- ficance from a national standpoint. Apart from their ennobling and civilising influence, it is by the aid of such bodies, and of the vast numbers of scientific workers that constitute them, that we must hope to build up an independent fabric of industry, and to provide the necessities of existence. Messrs. Griffin’s annual is not only a reminder of the valuable work that is constantly being done, but gives us a clue to its nature such as is afforded by no other publication. It is not only a work of reference, but a standing record — a feature that rescues it from the crowd of ephemeral annuals. The South Wales Coal Annual for 1915. Edited by Joseph Davis and C. P. Hailey. Ixxix. + 346 pp.; 5| in. x 8£ in. Cardiff : Business Statistics Company Limited. Price, 7s. 6d. net. This, as usual, is a very useful and commendable volume. It contains a vast amount of information relating to the selling branch of the staple industry of South Wales, with tables of outputs, freights, prices, etc. Gas Supply. By W. H. Y. Webber. vii. + 199 pp.; 5 in. x 7| in.; 57 fig. London : Whittaker and Com- pany. Price, 3s. 6d. net. A sub-title is “A Simple Guide for the Gas Fitter and Gas Consumer,” which more accurately describes its scope. Mr. Webber is lecturer and instructor to the gas sales department staff of the Gas Light and Coke Company, and his qualifications are obvious. Intended primarily for the fitter, the book has a genuine interest for a much wider circle of readers. It is excellently reproduced, and some of the photographs of lighting effects are quite remarkable. Valves and Valve Gearing. By Charles Hurst, xi. + 309 pp.; 6 in. x 9 in.; 274 fig. Seventh edition. London : Chas. Griffin and Company. Price, 9s. net. The valve enters intimately into almost every depart- ment of mechanical engineering, and a further edition of this popular text book will be welcome. The principal new feature is an appendix dealing with some recent developments in gas engine practice. The greater portion of the book naturally relates to the different kinds of steam engine valves—slide expansion gear, -link motions, Corliss gears, drop valves and gears, etc. This is followed by sections on gas engine valves and gears, air compressor valves and gearing, pump valves, and safety and relief valves. The “ Mechanical World ” Electrical Pocket Book for 1915. 303 pp.; 4 in. x 6 in. Manchester : Emmott and Com- pany. Price, 6d. net. This little annual gives in small compass, and at a very low cost, a great amount of data, etc. The mining section appears to have been brought well up to date. The directors of the Midland Railway Company have appointed Mr. A. W. Allen as mineral manager, in succession to Mr. John Rawson, who retires on December 31 under the age limit. Mr. Allen will be succeeded as indoor assistant to the general manager by Mr. William Clower. THE FREIGHT MARKET. If the vitality of the north-east coast coal trade were anything short of miraculous, the present position of the outward freight market would extinguish it entirely. Trials and tribulations galore have been the lot of coal shippers ever since the war commenced; now, however, surely their troubles have reached their maximum. The raid of German cruisers on the Hartlepools, Whitby, and Scarborough gave a severe set-back to chartering transactions in the ipiddle of next week. Subsequent Admiralty restrictions to North Sea traffic, resultant largely on that raid, have reduced business to a minimum. Immediately after the raid occurred, the Admiralty issued a notice practically closing- the North Sea to mercantile shipping. A day or two later the route between Newcastle and Flamborough Head was re-opened for daylight passages, vessels being requested to keep within two miles of the coast all the way. On Monday of this week, however, owing to the presence of German mines and the occurrence of further casualties to shipping, the Admiralty found it necessary to prohibit the passage south, with the result that boats arranged for could not sail, and some which had sailed over the week-end returned to the Tyne, unable to continue. Under the circumstances, chartering from north-east coast ports is absolutely at a standstill at the time of writing, and not much relief is to be expected this week—if, indeed, any will come this vear. The few freights arranged during the last few days, there- fore, make unusually interesting reading. Coasting business, for example, has been done at the hitherto unparalleled rate of Ils. from Tyne to London—a purely “ sporting ” transaction. North France has Rouen at from 17s: to 17s. 3d., and Havre at from 15s. 6d. to 16s. 6d. The Bay is represented by 15s. 6d. to Bordeaux or St. Nazaire— rates arranged just after the raid. The Mediterranean is based on fully 20s. to Genoa, with Port Said at 22s. 6d. At South Wales the market has been comparatively free from such wTar’s alarums. Nevertheless, rates in some directions stiffened in sympathy with those on the “ Coast.” The Mediterranean is up to from 17s. 6d. to 17s. 9d. to Genoa from Cardiff, as compared with from 16s. 6d. to 17s. 6d. a week ago. North France has Havre at from 12s. 6d. to 13s., as against 12s. 9d. Rouen, however, is easier, at from 12s. 6d. to 14s. The River Plate is weaker, at from 15s. 3d. to 15s. 6d. The Bay is dearer, at 14J fr. to St. Nazaire. Generally speaking, tonnage is offering more freely at Cardiff, and the tone is somewhat irregular. At the Clyde there is a quiet demand for tonnage, at firm figures. Homewards, the North Pacific has paid 47s. 6d. to United Kingdom, and 50s. to Holland, the latter for January loading. The nitrate ports have got on at 40s. for February. There is practically nothing doing from the East Indies. The rice ports are dull and steady, at about 30s. from Burmah. The Mediterranean is well maintained, but the demand is only very moderate. America is very firm for cotton and grain. Time charter rates in the Transatlantic trade are also on a high basis, a steamer of 2,500 tons d.w. having secured .£1,000 per month for two round trips, with delivery in Wales; and one of 5,000 tons, £1,900 for six months, delivery in America. The River Plate is strong, with 43s. done for up-river loading this month. Tyne to Bordeaux, 4,200, 15s. 6d.; Caen, 1,400, 15s.; Genoa, 1,400, 20s.; Havre, 2,200, 15s. 6d.; 1,600, 16s. 6d.; London, 3,600, 6s. 3d., six voyages; 3,300, 7s.; 2,000, Ils.; Lisbon, 4,800, 15s., 500, from Dunston; Marseilles, 4,500, 18s. 9d., time counts from arrival; 4,500, 20s.; Monaco, 1,750, 22s. 6d.; Naples, 5,400, 19s. 6d., 700; Port Said, 3.400, 22s. 6d.; Rouen, 2,700, 17s.; 3,900, 17s. 3d.; 900, 15s.; 3,500, 16s. 6d.; 2,500, 16s. 6d.; 1,500, 15s. 9d.; 1,700, 15s. 6d.; 3,200, 17s.; 2,200, 17s.; 1,400, 17s.; 2,000, 16s. 9d.; 2,200, 15s. 6d.; St. Nazaire, 5,000, 15s. 6d.; Teneriffe, 2,400, 14s. Cardiff to Alexandria, 3,800, 20s. 7|d.; Algiers, 2,900, 19 fr.; Brest, 2,000, 11s.; Buenos Ayres, 4,600, 15s. 6d.; Bizerta, 5,400, 18Jfr., 1,200, end month; Barcelona, 2,100, 16s., Dec.; Campana, 4,400, 15s. 6d.; Cork, 750, 9s.; Catania, 4,800, 18s.; 3,500, 18s.; Chantenay, 1,900, 14|fr., 600; 1,600, 14| fr.; Fecamp, 1,050, 13s.; Genoa, 4,500, 17s. 6d.; 3,700, 18s., Jan.; 4,000, 17s. 9d., end month; 17s. 4|d., reported; Gibraltar, 1,800, 14s., end month; Havre, 900, 12s. 6d.; 1,300, 13s.; Havre Canal, 1,700, 12s. 6d.; 9,000, 13s.; Honfleur, 1,250, 13s.; Leghorn, 4,900, 17s. 6d., 600; 4,000, 18s., 500: Marseilles, 3.200, 21 fr., early Jan.; 3,800, 22 fr.; 5,000, 21 fr.; 4,200, 21 fr.; Messina, 3,500, 18s.; 4,800, 18s.; Naples, 4,000, 18s., 500, Jan. 1; 4,500, 17s. 6d.; 4,800, 17s. 6d., 800; Nantes, 2.800, 14 fr., end month; 1,300, 15 fr., 500; 3,000, 14| fr.; 2,100, 14f fr., free brokerage, Dec.; Oporto, 1,500, 15s.; Port Said, 3,800, 21s.; 4,600, 20s.; 3,600, 20s., Dec. 29; Rosario, 4.400, 16s., Dec.; River Plate, 4,800, 15s. 6d., end month; 15s. 3d.; Rouen, 2,000, 14s.; 2,900, 14s. l|d., end month; 1.400, 14s.; 2,900, 12s. 6d.; 1,600, 13s. 6d.; 2,300, 12s. 6d.; Seville, 1,600, 14s. 6d.; St. Servan, 900, 10s. 6d.; St. Nazaire, 2,000, 14j fr.; Sicily, 3,500, 18s. 3d., 400, end month; Trouville, 1,200, 13s.; Villa Constitucion, 4,400, 15s. 6d.; Venice, 4,000, 22s. 6d., charterers paying war risk. Swansea to Dieppe, 2,300. 13s.; 750, 13s. 9d.; Fecamp, 780, 13s. 6d.; Bordeaux, 1,700, 151 fr.: Marseilles, 1,600, 25 fr.; Belfast, 450, 5s. 9d.; Catania. 2.500, 18s. 6d. coal, 19s. 3d. fuel, Jan. 1; Valencia, 1,500, 15s. coal, 15s. 9d. fuel, half tax; Nantes, 1,900, 154 fr.; Caen, 1,400, 13s.; St. Servan, 800. Ils. 6d.: Cherbourg, 900. 13s. 6d.; St. Nazaire, 2,500. 131 fr.: 2,000. 18 fr.: 1.900, 15 fr.; Hon- fleur, 950, 13s. 9d.; Rouen, 2.500, 14s. 3d.: 900, 15s.; 1,700, coal 14s., fuel 14s. 6d., three voyages; 2.300, 12s. 6d.; Chantenay, 2,000, 14J fr. Hull to Rouen. 4.000, 14s. 6d.; 4,800, 15s.; 1.500, 14s. 9d.; Dieppe, 1,600, p.t. ; Sundswall District, 12s.; Brixham, 2,500, 8s. Glasgow to Marseilles. 2,800, 16s. Bly th to Korsoer, 1,200, Ils. 6d. London to Kolding, 1,200, 20s., maize. Thames to Monte Video and Buenos Ayres, sail, about 20s. Immingham to St. Malo, 850, 14s. 6d. Newport to Seville, 2,800, 13s. 6d., 300: Naples, 5,400, 17s. 6d., 800, Dec.; Torre Annunziata. 5,400, 17s. 6d., 800, Dec.; Nantes, 2,100, 14^ fr., free brokerage, Dec. Port Talbot to St. Nazaire, 1,900, 15 fr.; Trouville, 750, 13s. 6d. Goole to Rouen, 750, 15s. Llanelly to St. Nazaire, 1,800, 14’, fr. Neath Abbey to Dieppe, 850, 14s.