1074 THE COLLIERY GUARDIAN May 21, 1915. CONTENTS. Editorial Article :— page The War Bonus and Prices.................... 1075 Articles The Transformation of a Durham Colliery 1065 The Use of Compressed Air on the Rand...... 1066 Settling Tanks for Hydraulic-Packing Plant.. 1067 The New Chemical Laboratory of the Imperial College ................................. 1068 Rescue Work in Mines..................... 1068 A Special Type of Colliery Locomotive...... 1069 The Coalfields of Spitzbergen ............. 1069 Approved Safety Lamps ..................... 1071 Book Notices............................... 1071 Output of Minerals Under the Coal Mines Acts During 1914 ............................ 1072 Obituary................................... 1078 Institution of Mining Engineers ........... 1080 The German and Austrian Coal and Iron Trades ... 1081 Trade and the War.......................... 1083 Labour and Wages.........."................ 1083 The Freight Market ........................ 1084 Open Contracts........................... 1085 Abstracts of Patent Specifications Recently Accepted.............................. 1086 New Patents Connected with the Coal and Iron Trades .................................. 1087 Government Publications .................. 1088 Publications Received .................... 1088 Current Science and Technology................ 1072 Notes from the Coalfields ..................... 1081 Coal, Iron and Engineering Companies .......... 1085 The Coal and Iron Trades...................1076—1080 The Tin-plate Trade ...................... 1075 The By-Products Trade .................... 1080 The London Coal Trade ..................... 1080 Letters to the Editors :— Coal Prices and Miners* Wages—Danger and the Law ................................... 1071 Miscellanea :— Hull Coal Exports ......................... 1066 Immingham Coal Exports — Coal Shipped from Ports in England, Scotland and Wales During April...................................... 1069 Mine Rescuers for the Front................ 1070 Partnerships Dissolved..................... 1071 South Wales Institute of Engineers—A Conveyor Patent................................... 1080 Grimsby Coal Exports ...................... 1086 Iron and Steel Institute .................. 1088 ADVERTISEMENTS. Offices for ADVERTISEMENTS and PUBLICATION- 30 & 31, Furnival Street, Holborn, London, E»C. Telegraphic Address—“Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. CONTRACT ADVERTISEMENTS ; Prices for SPECIAL POSITIONS on application. Prices for ORDINARY POSITIONS Single Column (3 inches wide) : For 52 insertions 2s. 6d. } per insertion for each ,,13 „ 3s. 6d. ) meh m depth. Double Column (6 inches wide), double the above rates. Three Columns (9 inches wide), three times the above rates. MISCELLANEOUS ADVERTISEMENTS : Advertisements are inserted on the last white page or leader page at the following rates :— One insertion ... 10s. 6d. per inch per insertion. Three insertions 9s. 6d. ,, ,, Six insertions ... 9s. Od. ,, ,, A reduction of 25 per cent, is allowed on advertisements of second-hand machinery. Situations Vacant and Wanted : One Penny per word, minimum 2s. 6d. (which must be prepaid). Can be received up to TEN o’clock on Friday morning. (A Classified List appears on page 1090.) SUBSCRIPTIONS. The Colliery Guardian, published at 2.30 p.m. on Friday, can be supplied direct from the Publishing Offices, post free for twelve months, at the following rates, payable in advance :— For the United Kingdom........ £110 For Foreign Countries and Colonies £17 6 When foreign subscriptions are sent by Money Orders, payable through the Post Office, advice should be sent to the Publishers. Offices for Advertisements and Publication :—30 and 31, Furnival Street, Holborn, London, «E.C. Telegraphic Address, “Colliery Guardian, Fleet, London.” Telephone—1354 Holborn. Established 1866. Patents, Designs and Trade Marks. Harris and Mills, Chartered Patent Agents, 34 and 35, HIGH HOLBORN, LONDON, W.C. Telegraphic Address—” Privilege, London.” Tel. No.—Holborn 2763. Booklet of useful information gratis. Chart of 187 Mechanical Motions with description of each, post free, 6d. ASSOCIATION OF PRIVATE OWNERS OF RAILWAY ROLLING STOCK. Formed in 1891 for the Protection of the Rights and Interests of Private Owners. Applications for particulars and terms of membership may be sent to the SECRETARY, Clarence Chambers. Gloucester, The Oldest Diamond Drill Company. Established 1872. CORING for ^INERALS. SPEED AND CERTAINTY. CYLINDRICAL “ CORES.” THE AQUEOUS WORKS AND DIAMOND ROCK-BORING Co. Ltd. Guildford St., York Road, Lambeth, London, S.E. Besides numerous other Important Contracts, completed (in 1897) the Deepest Boring in the United Kingdom to 3,500 ft. Great Experience in Boring for WATER. The Cambrian School of Mines, CEMETERY ROAD. PORTH, GLAM. An University Training at Your Own Home. Lessons and Instruction by Post for candidates for FIRST and SECOND Class Mine Managers’ and Mine Surveyors’ Home Office Examinations; Surveying and Electrical Engineering for London City Guild’s Exa nina- tions; also A.M E.E. Examinations and Government Inspectors’ Exams. Candidates for the above write without delay for free Syllabus, and book of Previous Examination Questions. (Dept. C.) CAMBRIAN MINING SCHOOL, PORTH, Clam. Briquette Machinery Ltd., 161, Water Lane, LEEDS. H Machinery for Briquetting Peat, Lignite, Coke, Coal, Iron, Copper, Nickel, Cement; Also Sawdust, Waste Cereals, Offals, Sewage. PATENT COAL DRIER. The UNIVERSAL MINING SCHOOL (Estab. 1883) is conducted by T. A. SOUTHER^ (late H.M.I.M.) and H. W. HALBAUM (Greenwell Medallist), meh qualified to prepare you for the highest mining positions. U.M.S.men obtain and hold nearly all the best posts. For example, 50 of H.M. Inspectors are U.M.S. men. Lessons by post only. Fees postponable during the war. Particulars on application. Syllabus and advice free. THE U.M.S., 50, Connaught Rd., CARDIFF. YEADONS’ LATEST PATENTED BRIQUETTE MACHINERY, For Coal, Coke, Iron and other Ores. YEADON, SON & CO., Engineers, LEEDS, Haye a World-wide Reputation, and 38 Years’ Experience. They have supplied MORE BRIQUETTE PLANTS than any other firm in this country. HEAD, WRICHTSON AND CO. LTD., -------- FOR —— COLLIERY PLANT. See Page Advertisement in May 14 issue. STEEL Roof Bars Pit Props Arches For COLLIERIES V V and WORKS. THQS W. WARD Ltd., Albion Works, SHEFFIELD. TRY US. -------- PNEUMATIC HAMMER DRILLS. (Commercial man, in the Nord Department (France), with large connection among French colliery owners, is open to take up the sale of pneumatic hammer drills on commission; large opening for business; first-clas's references. J. DE VIENNE, 7, Rue de Nemours, Paris. YX 7anted, a competent Assistant Surveyor v V (with certificate) for large group of collieries in Midlands.—Apply, stating age and experience, and giving testimonials or references, to Box 6071, Colliery GuardianOffice, 30 & 31, Furnival-st., Holborn, London, E.C. COOKE & BYRNE, 60, HARCOURT ST., DUBLIN, are prepared to form Private or Public Limited Com- panies with a view to providing additional capital. COLLSERIES BOUGHT ANO SOLO. All correspondence treated confidentially. Address, COOKE & 60, Harcourt Street, Dublin^ and at London, Liverpool, Manchester, Glasgow, Paris, and other Branches. Geo. N. Dixon & Co., 43, Castle Street, Liverpool, Auctioneers and Valuers, COLLIERIES, Brickworks & Mining Plant. CONTRACTS FOR COLLIERY STORES AND TIMBER. The South Hetton Coal Co. Ltd. invite TENDERS for six months supply ending December 31st. 1915, of TIMBER (English only). OILS, IRON, CASTINGS, WIRE ROPE, and other COLLIERY STORES, except Electrical. . Form of tender and specification, with full conditions, may be obtained from Mr. J. R. Lambert, South Hetton, near Sunderland, and applicants for forms must state the kind of stores for which they wish to tender. Tenders addressed to the SOUTH HETTON COAL CO. LTD., South Hetton, near Sunderland, will be received up to 5th June. DEWSBURY CORPORATION ELECTRICITY WORKS. Tenders are invited for the supply and delivery of STEAM COAL for the Electricity Works, Bradford- road, Dewsbury, for twelve months. Quantity required about 4,500 tons. Specification and form of tender in duplicate to be obtained from the undersigned, and must be returned not later than May 31st, addressed to the Chairman, Electricity and Tramways Committee, Bradford-road, Dewsbury. The Corporation do not bind themselves to acceptthelowestor any tender. R. H. CAMPION, Borough Electrical Engineer. ____ TO COLLIERY PROPRIETORS AND OTHERS. T^he Corporation of Birkenhead are pre- fl pared to receive TEN DERS for the supply of WASHED SLACK, or WASHED SMALL COAL, and SCREENED CO AL. to be delivered at the Pumping Stations of the Spring hill, Flaybrick-hill, Borough-road, Mount road, and the Ford Waterworks and the Hind-street Water Stores for a period of 6 and/or 12 months, commencing on the 1st July, 1915, the period to be at the option of the Corporation. Forms of tender and specification, together with any further information, may be obtained from Mr J. W. M. Richardson, A.M.Inst.C.E., Water Engineer, 52, Balls-road, Birkenhead. Tenders stating the price per ton delivered at the various Pumping Stations and the Water Stores, Hind-street, must be sent in to me, sealed and endorsed “Tender for Coal and Slack, Water Committee,” not later than 5 p.m. on Wednesday, May 26th, 1915. All deliveries to be made from time to time according to the requirements of the Water Engineer. The parties whose tender may be accepted will be required to enter into a contract containing a clause as to the payment of the rate of wages and the observance of the hours Cf labour and conditions recognised and agreed upon between the trades unions and the employers in Birkenhead or in the locality in which the work for carrying out the contract is executed, as the case may be. The Corporation do not bind themselves to accept the lowest or any tender. Town Hall, By order, Birkenhead, JAMES FEARNLEY, 11th May, 1915. Town Clerk. FUEL. The Commissioners of His Majesty’s Works, &c., are prepared to receive TENDERS from colliery owners or the sole agents of collieries lor the supply at pit of HOUSE COAL, HARD STEAM COAL, ANTHRACITE COAL, and SMALL STEAM COAL FOR MECHANICAL STOKERS during a period’of one year from the 1st July, 1915. Alternative prices should also be submitted for the supply during the first six months. Forms of tender, conditions of contract, and all particulars may be obtained on application to the Controller of Supplies, H.M. Office of Works, 18, Queen Anne’s-gate, Westminster, S.W. The Commissioners do not bind themselves to accept the lowest or any tender. Tenders must be delivered before 11 a.m. on Thursday, 3rd June, 1915, addressed to the SECRETARY, H.M. Office of Works, &c., Storey’s-gate, London, S.W., and endorsed “Tender for House Coal,” &c., &c.,asthe case may be. H.M. Office of Works, &c., 13th May, 1915. FUEL. The Commissioners of His Majesty’s Works, &c., are prepared to receive TENDERS for the Supply of Co AL and COKE to the Government Buildings in the following districts, viz., ABERDEEN, DUNDEE, EDINBURGH, GLASGOW. GREENOCK, during a period of one year from the 1st of July, 1915. Alternative prices should also be submitted for the supply during the first six months. Forms of tender, conditions of contract, and all particulars may be obtained on application to the Controller of Supplies, H.M. Office of Works, &c., 18, Queen’s Anne’s Gate, Westminster, S.W. Applicants should state clearly the names of the particular districts for which they require tender forms, &c. Tenders must include for delivery into cellars. The Commissioners do not bind themselves to accept the lowest or any tenders. Tenders must be delivered before 11 a.m. on Friday, 4th June, 1915. addressed to the SECRETARY, H.M. Office of Works, &c., Storey’s- gate, London, S.W., and endorsed “ Tender for (insert name of district) Coal and Coke.” H.M. Office of Works, &c. 13th May, 1915. FUEL. The Commissioners of His Majesty’s Works, &c., are prepared to receive TENDERS for the supply of COAL and COKE to the Government Buildings in the undermentioned districts, during a period of one year from the 1st of July, 1915. Alternative prices should also be submitted for the supply during the first six months. Forms of tender, conditions of contract, and all particulars may be obtained on application to the Controller of Supplies, H.M. Office of Works, &c., 18, Queen Anne’s Gate, Westminster, S.W. Applicants should state clearly the names of the particular districts for which they require tender forms, &c. Tenders must include for delivery into cellars. The Commissioners do not bind themselves to accept the lowest or any tenders. Tenders must be delivered before 11 a.m. on the dates specified below addressed to the SECRETARY, H.M. Office of Works, &c., Storey’s Gate, London, S.W., and endorsed “Tender for (insert name of district) Coal and Coke.” Date Date District. Returnable. District. Returnable. Aylesbury 8th June. Leeds ... 9th June. Bedford ... do. Leicester do. Birkenhead ... ... do. Lewes do. Birmingham ... do. Lincoln do. Blackburn ... do. Liverpool do. Bodmin ... do. Maidstone do. Bolton ... do. Manchester . do. Borstal (Rochester, &c.) ... do. Middlesbrough ... . do. Bournemouth ... do. Newcastle-on-Tyne . ... ... do. Bradford , ... ... do. ' Newport (Mon.) do. Brighton ... do. Northallerton ... . do. Bristol ... do. Northampton ... . do. Cambridge ... do. Norwich , do. Canterbury ... do. Nottingham ... . do. Cardiff ... do. Oldham , ... , ... 10th June. Carlisle ... do. Osborne do. Carmarthen ... do. Oxford do. Carnarvon ... do. Parkhurst, &c. ... do. Chelmsford ... do. Plymouth , do. Chester .. ... do. Portland , do. Coventry ... do. Portsmouth do. Croydon ... do. Preston ... do. Darlington ... do. Reading do. Dartmoor ... ... do. St. Albans , do. Derby ... do. Scarborough do. Doncaster ... ... do. Sheffield do. Dorchester ... do. Shepton Mallet ... do. Dudley ... ... do. Shrewsbury do. Duke of York’s School, Southampton ... . do. Dover? 9th June. South Shields ... do. Durham ... do. Stafford . do. Exeter ... do. Stoke-on-Trent, &c. do. Feltham ... do. Sunderland do. . Gloucester ... do. Swansea ... ... do. Grimsby ... do. Tunbridge Wells ... ... do. Hampton Court ... ... ... do. Usk ... . do. Huddersfield ... do. Wakefield ... ... do. Hull ... ... ... do. Warrington do. Ipswich ... do.' Warwick ... ... do. Kew district ... do. Winchester do. Kingston-on-Thames ... ... do. Wolverhampton ... .., do. Knutsford ... ... do. Worcester do. Lancaster ... ... do. York do. London— ; External (Offices more than 4 miles from Board’s Depots) 3rd June. P.O. Central Power Station, Upper Ground-street, S.E. .. do. Royal Mint (Yorkshire Washed Nats) ................... do.