NO. 2 BIBLIOGrtAPIlY OF TIN — HESS 7 



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Chem. Engr The Chemical Engineer, Chicago. 



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Chem. News Chemical News, London. 



Coll. Guard Colliery Guardian, London. 



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C. R. Acad. Sci Comptes Rendus de I'Academie des 



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Econ. Geol Economic Geology with which is in- 

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Electr. Eng.. Electrical Engineer, New York. 



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Eng. Mg. Journ Engineering and Mining Journal, New 



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Geol. Mag Geological Magazine, London. 



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