Education in France
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C.
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Article
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1879
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Elsevier Science
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English
โ 86 KB
Atmospheric Impurities. -It is estimated that, England yearly uses 114,043,9-l0 tons of coal. If we suppose it to contain only one per cent. of' sulphur,'there is ail annual infusion of 3,500,OOO tons of C;ull~huric acid 'into the air, which the inhabitants are obliged to breathe. --I)e,. Technikcr