. Transactions. Fig. 8.—Pers^istknce of CkmkntiteCrystals in pure Cast-Ihon afterprolonged heating, including 118hours between 635° and 750°.Magnified 85 diameter^;.. Fig. 10.—Pure Cast-Irox .\<j. 2AQuenched from 950°. Contact ofEutectic with Graphite. FineNeedles are Pro-eutectoid Ce-MENTiTE. Magnified 85 diameters.

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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries