Notes of the month
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Article
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1883
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Wiley (John Wiley & Sons)
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the orc to be treiitcd is csccedingly poor in contents the coppcr Iwoduccd. so tlic Iircseiit cniiiiot 1Jc tliu of copper. It iiiny bc said to be n liurc pyritcs, con-, future process of copper innnufiicturc. I h t iit Irreseiit