L?— CRIL. (Ralph Early). - I.Differentjaj thermal curves of preiared mixtures of clay minerals. II. Rehydration and dehydration of the clay minerals. By H. E. Grim and W. F. Bradley, . Urbana1 1948. See ItfINOIS, tate of. Department of Registratiofl — and Educatio Division of the State Geo logical Survey. [Report of Investigations.] 134.

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GRIM - GROG