ON MINES IN GENERAL.
Perils of the Miner’s Life—Number of Casualties in British
and Foreign Coal Mines—Life in a Mine—Occurrence of
Ores—Extent and Depth of Metallic Veins—Mines frequently
discovered by Chance—The Divining Rod—Experimental
Borings—Stirring Emotions during their Progress—Sinking
of Shafts—Precautions against Influx of Water—Expense—
Shaft Accidents—Various Methods of working Mineral
Substances—Working in Direct and Reverse Steps—Working
by Transverse Attacks—Open Quarry Workings—Pillar and
Stall System—Long Wall System—Dangerous Extraction of
Pillars—Mining Implements—Blasting—Heroes in Humble
Life—Firing in the Mine of Rammelsberg—Transport of
Minerals Underground—Modern Improvements—Various Modes
of Descent—Corfs—Wonderful Preservation of a Girl at
Fahlun—The Loop—Safety Cage—Man Machines—Timbering and
Walling of Galleries—Drainage by Adit Levels—Remarkable
Adits—The Great Cornish Adit—The Georg Stollen in the
Hartz—The Ernst August Stollen—Steam Pumps—Drowning of
Mines—Irruption of the Sea into Workington Colliery—
Hubert Goffin—Irruption of the River Garnock into a
Mine—Ventilation of Mines—Upcast Shafts—Fire Damp—
Dreadful Explosions—The Safety Lamp—The Choke Damp—
Conflagrations of Mines—The Burning Hill in
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