Coal Mining. By H. W. HUGHES, F.G.S., A.R.S.M. With very numerous Illustrations. FOURTH EDITION, Revised and Rewritten. Ore and Stone Mining: A Text-Book for Students. By C. LE NEVE FOSTER, D.Sc., F.R.S., H.M. Inspector of Mines. With numerous Illustrations. FOURTH EDITION, thoroughly Revised. Mine Surveying. For Managers of Mines and Collieries. By BENNETT H. BROUGH, F.G.S., formerly Instructor of Mine Surveying, Royal School of Mines. SEVENTH EDITION, Revised. 7s. 6d. Mine Accounts and Mining Book-Keeping: For Students, Managers, and others. By JAMES G. LAWN, Assoc. R.S.M. Edited by Prof. LE NEVE FOSTER. 10s. 6d. By O. GUTTMANN, A.M. Inst. C.E. Blasting and the Use of Explosives. With Folding Plates. Practical Geology. Revised. 10s. 6d. 10s. 6d. By Prof. G. A. J. COLE, F.G.S. THIRD EDITION. Pumping Machinery, Steam and Water Pressure, applied _to_Mines DRAINAGE, WATER SUPPLY, ETC. By HENRY DAVEY, M.Inst. C. E., M.Inst.Mech. E. With Plates and Illustrations. 21s. Hydraulic Power and Hydraulic Machinery. By HENRY ROBINSON, Fuel and Water: A Manual for Users of Steam and Water. By Prof. Gas, Oil, and Air Engines: Internal Combustion Motors without Boiler. With Jamieson's Steam and Steam Engines. With over 200 Illustrations, Folding Plates, and Examination Papers. FOURTEENTH EDITION. 88. 6d. Jamieson's Elementary Manual of Steam and the Steam Engine. EIGHTH EDITION. 3s. 6d. Jamieson's Magnetism and Electricity. With 246 Illustrations and Examination Papers. FIFTH EDITION. 38. 6d. Jamieson's Applied Mechanics (An Advanced Text-book on). Vol. I.Comprising Part I.: The Principle of Work and its Applications; Part II.: Gearing. THIRD EDITION. 78. 6d. Vol. II.-Motion, Energy, Statics, Strength of Materials, Etc. SECOND EDITION. 8s. 6d. Jamieson's Applied Mechanics (An Introductory Manual). FOURTH EDITION. 3s. 6d. Engineering Drawing and Design. By S. H. WELLS, Wh. Sc., A.M.I.C.E., A.M.I.Mech. E., Principal and Head of the Engineering Department, Battersea Polytechnic Institute. In Two Parts. Sold separately. THIRD EDITION. I. PRACTICAL GEOMETRY: PLANE AND SOLID. 38. II. MACHINE AND ENGINE DRAWING AND DESIGN. 4s. 6d. Forming a complete course. LONDON: CHARLES GRIFFIN & CO., LTD., EXETER ST., STRAND. A MANUAL FOR MANAGERS, UNDER-MANAGERS, BY GEORGE L. KERR, M.E., M. INST. MIN. E., CHARLES GRIFFIN & COMPANY, LIMITED, EXETER STREET, STRAND. 1900. [All Rights Reserved.] PREFACE. NOT many years ago the works on Coal-Mining were few, and in most instances so expensive as to be beyond the reach of the ordinary student or practical miner. This state of affairs has been to a large extent remedied of recent years by the issue of several works of more moderate dimensions and price. Between the small elementary textbook and the still large and comparatively costly work of reference, however, there yet remains a considerable gap, which it has been the Author's endeavour in this volume to fill. The best authorities have been freely consulted and, with due acknowledgment, laid under contribution; while the latest methods of working and the most modern machinery have been described, with the object of presenting an up-to-date account of the important industry under consideration. Since the publication of the excellent treatise by Jonathan Hyslop, thirty years ago, no text-book dealing to any extent with Scottish practice has, so far as the Author is aware, been published. As his experience has been gained largely in Scotland, he has attempted to remedy this omission, and it is to this that the occasional occurrence of a few Scotch words or phrases must be attributed, although these have been avoided, as far as possible, when reference is made to methods prevailing elsewhere. Less attention has been paid to literary style and elegance than to the production of a thoroughly practical and plainly worded text-book, designed not only to aid those endeavouring to qualify themselves for positions as colliery managers and other responsible officials, but also as a daily guide and reference-book for all engaged in and about the Colliery. The Author gratefully expresses his indebtedness to other sources, which, except in cases where a difficulty in tracing the authorship 85361 |