. Transactions. Brin. , d = mm. 850° C. anneal Brin. , d = mm. Fig. 13.—Etched with ammonia and hydrogen peroxide. X 75. W. H. BASSETT AND C. H. DAVIS 445. BrIX. 146 As ROLLED Brix. 153—250 C.

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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries