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" The pillar and stall is generally practised in preference to the long wall system of " getting" the coal. None of the mines are of great depth, and a perfect freedom from fire and choke damp render it possible to carry on the work without its being necessary... "
The Imperial Gazetteer of India - Page 503
by William Wilson Hunter - 1886 - 430 pages
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Jungle Life in India: Or, The Journeys and Journals of an Indian Geologist

Valentine Ball - Bengal (India) - 1880 - 786 pages
...getting " the coal None of the mines are of great depth, and a perfect freedom from fire and choke damp renders it possible to carry on the work without its...best coal. Compared with ordinary English coal, the Ranigunj coals, and Indian coals generally, are very much inferior in working power, still they are...
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Journal of the Royal Geological Society of Ireland

Royal Geological Society of Ireland - Geology - 1880 - 324 pages
...the coal. None of the mines are of great depth, and a perfect freedom from fire and choke-damp render it possible to carry on the work without its being...considerable thickness, one which is worked contains nearly forty feet of coal. As a rule, however, the thick seams, especially those in the lower measures, do...
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Rangoon to Tappal

William Wilson Hunter - India - 1881 - 554 pages
...Calcutta, tends to give it pre-eminence over other less favourably situated localities. In the year 1 774, coal was known to occur there, and so long ago as...best coal. Compared with ordinary English coal, the Ram'ganj coals, and Indian coals generally, are very much inferior in working power ; still they are...
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The Diamonds, Coal, and Gold of India: Their Mode of Occurrence and Distribution

Valentine Ball - Coal - 1881 - 152 pages
...the coal. None of the mines are of great depth, and a perfect freedom from fire and choke damp render it possible to carry on the work without its being...best coal. Compared with ordinary English coal, the Ranigunj coals, and Indian coals generally, are very much inferior in working power. Still they are...
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The Diamonds, Coal, and Gold of India: Their Mode of Occurrence and Distribution

Valentine Ball - Coal - 1881 - 152 pages
...the coal. None of the mines are of great depth, and a perfect freedom from fire and choke damp render it possible to carry on the work without its being...especially those in the lower measures, do not contain the-best coal. Compared with ordinary English coal, the Ranigunj coals, and Indian coals generally,...
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Mineral Products of New South Wales

New South Wales. Department of Mines, Harrie Wood, Charles Smith Wilkinson, Archibald Liversidge, Robert Etheridge, Robert Logan Jack - Geology - 1882 - 382 pages
...the extraction of coal, while many minor firms and native associations swell the total amount raised. Many of the seams are of considerable thickness —...one which is worked contains nearly 40 feet of coal. Compared with ordinary English coal, the Rauigunj coals and Indian coals generally are very inferior...
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The Scientific Proceedings of the Royal Dublin Society, Volume 2

Royal Dublin Society - Natural history - 1880 - 804 pages
...the coal. None of the mines are of great depth, and a perfect freedom from fire and choke damp render it possible to carry on the work without its being...considerable thickness, one which is worked contains nearly forty feet of coal. As a rule, however, the thick seams, especially those in the lower measures, do...
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The Scientific Proceedings of the Royal Dublin Society, Volume 2

Royal Dublin Society - Natural history - 1880 - 712 pages
...the coal. None of the mines are of great depth, and a perfect freedom from fire and choke damp render it possible to carry on the work without its being...considerable thickness, one which is worked contains nearly forty feet of coal. As a rule, however, the thick seams, especially those in the lower measures, do...
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