ON MINE SURVEYING BY ARNOLD LUPTON MINING ENGINEER, CERTIFICATED COLLIERY MANAGER, SURVEYOR, MEMBER OF THE INSTITUTION OF CIVIL ENGINEERS, MEMBER OF THE INSTITUTION OF MECHANICAL ENGINEERS, MEMBER OF THE INSTITUTE OF MINING ENGINEERS, MEMBER OF THE INSTITUTE OF ELECTRICAL ENgineers, FELLOW OF THE GEOLOGICAL SOCIETY, fellow OF THE SOCIETY OF ARTS, ETC., (YORKSHIRE college, leeds), and someTIME EXAMINER IN MINE SURVEYING TO THE CITY AND GUILDS OF LONDON INSTITUTE WITH ILLUSTRATIONS LONGMANS, GREEN, AND CO. 39 PATERNOSTER ROW, LONDON NEW YORK AND BOMBAY 1902 All rights reserved PREFACE THIS book has been prepared with the intention of assisting students in learning the art of Surveying. The author, during the twenty-one years of his Professorship in the Mining Department of the Yorkshire College, had to teach a great many students the elements of this art, and for that purpose put together various notes. As a former Examiner in Mine Surveying to the City and Guilds of London Institute also, the author gained a considerable insight into the needs of students. He has added to his own experience as a practical surveyor by reading a number of books on surveying and papers published in the transactions of various scientific societies both in this and other countries. Where it has been thought advisable to reproduce extracts or drawings from these, acknowledgment will be found in the text. Whilst primarily the object the author has had in view has been the preparation of an elementary text-book, he has endeavoured to make the book of value as a reference book to the more advanced parts of the subject, and the chapters dealing with Trigonometrical Plotting, Hypsometry, Method of finding the True North, Metalliferous Mine Surveying, Photographic Surveying, Prospecting with the Magnetic Needle, etc., have been included with this purpose in view. The reader should endeavour, as far as possible, to get practical experience of the instruments and in the method of using them, and the author would recommend such of his readers as have not done so to view the collection of surveying instruments at the South Kensington Museum, London. The author would like to acknowledge the uniform courtesy shown to him by those members of the Government Departments (Royal Observatories, Greenwich and Kew, the Ordnance Survey Office, the Meteorological Office, etc.) who have supplied him with various information, and also his thanks to the various makers of surveying instruments herein described. The tables of Logarithms, Antilogarithms, Squares, Sines, Cosines, Tangents, etc., which form a portion of the appendix, are taken from a work on Elementary Physics by Mr. John Henderson, D.Sc. (Edin.), A.I.E.E., F.R.S.E., to whom the author is indebted for permission to reproduce them. In conclusion, the author wishes to state that professional engagements might have entirely prevented him from completing this work had it not been that among his assistants he numbered some experienced surveyors, and he thinks it fair to acknowledge the valuable assistance he has had from them, especially from Mr. Herbert Perkin. He would also like to thank those of his friends who have undertaken the revision of various parts of the work. Any corrections or additions which suggest themselves to the reader will be gratefully acknowledged. 6, DE GREY ROAD, LEEDS, July, 1901. ARNOLD LUPTON. |