The Popular Science Review: A Quarterly Miscellany of Entertaining and Instructive Articles on Scientific Subjects, Volume 12James Samuelson, Henry Lawson, William Sweetland Dallas Robert Hardwicke, 1873 - Science |
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... COAL - MINES ; THEIR CAUSES AND MODE OF PREVENTION . By A. H. Green , M.A. , F.G.S. ... HOW TO MAKE A GEOLOGICAL MAP . By H. B. Woodward , F.G.S. Illustrated ... ... ... ... ... ... ... ... ... 14 ... ... 26 ... ... 35 THE BATTLE OF ...
... COAL - MINES ; THEIR CAUSES AND MODE OF PREVENTION . By A. H. Green , M.A. , F.G.S. ... HOW TO MAKE A GEOLOGICAL MAP . By H. B. Woodward , F.G.S. Illustrated ... ... ... ... ... ... ... ... ... 14 ... ... 26 ... ... 35 THE BATTLE OF ...
Page 13
... mètres or 225 feet wide , and Calais harbour 100 mètres or 330 feet wide . The entrances of both are mere canals open to seaward . ON EXPLOSIONS OF FIRE - DAMP IN COAL MINES ; STEAM - SHIPS FOR THE CHANNEL PASSAGE . 13.
... mètres or 225 feet wide , and Calais harbour 100 mètres or 330 feet wide . The entrances of both are mere canals open to seaward . ON EXPLOSIONS OF FIRE - DAMP IN COAL MINES ; STEAM - SHIPS FOR THE CHANNEL PASSAGE . 13.
Page 14
... COAL MINES ; THEIR CAUSES AND MODE OF PREVENTION . BY A. H. GREEN , M.A. , F.G.S. WH HEN the old Hebrew poet wished to fix upon a class of men who were exposed more than their fellows to danger , and who had to face nature under her ...
... COAL MINES ; THEIR CAUSES AND MODE OF PREVENTION . BY A. H. GREEN , M.A. , F.G.S. WH HEN the old Hebrew poet wished to fix upon a class of men who were exposed more than their fellows to danger , and who had to face nature under her ...
Page 15
... coal - mining , is a mixture of carburetted hydrogen , nitrogen , and carbonic acid gases . Of these carburetted hydrogen is by far the largest ingredient , and , as the cause of explosions , the one we are more specially concerned with ...
... coal - mining , is a mixture of carburetted hydrogen , nitrogen , and carbonic acid gases . Of these carburetted hydrogen is by far the largest ingredient , and , as the cause of explosions , the one we are more specially concerned with ...
Page 16
... coal itself . How it came there is a question to which it is not easy to give a definite answer . The same gas , however , is produced by the decomposition of dead plants in marshy places , and we must content ourselves with the vague ...
... coal itself . How it came there is a question to which it is not easy to give a definite answer . The same gas , however , is produced by the decomposition of dead plants in marshy places , and we must content ourselves with the vague ...
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