PREFACE.
CHAPTER I.
CHAPTER II.
CLASSIFICATION OF ORE IN SIGHT.
CHAPTER III.
CHAPTER IV.
PRICE OF METALS.
COST OF PRODUCTION.
CHAPTER V.
TABLE I.
TABLE II.
TABLE III.
CHAPTER VI.
OPINIONS AND VALUATIONS UPON SECOND-HAND DATA.
GENERAL CONDUCT OF EXAMINATION.
REPORTS.
GENERAL SUMMARY.
CHAPTER VII.
ENTRY TO THE MINE.
MINES OF MODERATE DEPTHS.
MINES TO GREAT DEPTHS.
CHAPTER VIII.
CHAPTER IX.
SUBSIDIARY DEVELOPMENT.
LEVELS.
WINZES AND RISES.
DEVELOPMENT IN THE EARLY PROSPECTING STAGE.
CHAPTER X.
METHODS OF ORE-BREAKING.
CHAPTER XI.
CHAPTER XII.
SHAFT HAULAGE.
LATERAL UNDERGROUND TRANSPORT.
CHAPTER XIII.
CHAPTER XIV.
WORKSHOPS.
IMPROVEMENT IN EQUIPMENT.
CHAPTER XV.
FACTORS LIMITING THE OUTPUT.
CHAPTER XVI.
CHAPTER XVII.
ACCOUNTS.
GENERAL TECHNICAL DATA.
CHAPTER XVIII.
CHAPTER XIX.
CHAPTER XX.
INDEX.
