Treatment of copper in the bessemer conv
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Article
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1883
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Elsevier Science
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English
β 57 KB
lbnes Produced by Intermittent Radiation. 389 Newton's Rings.--Sohncke and Wangerin have repeated and extended their observations upon Newton's rings, with results which confirm their early views with regard to the slight eccentricity of the rings. If the microscope is so placed as to give the sharp