New reagent for etching mild steel: W. R
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Article
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1914
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Elsevier Science
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English
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Observations on the Burning of Porcelain. R. ~:~EINDEL. (Spreschsaal, xl, vii, 285.)--The behavior of an experimental oven was studied by the help of Seger cones, a pyrometer, a manometer, and the analyses of the oven gases. The readings of the pyrometer showed higher temperatures than those indicat