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Gurdon Montague Butler

    A Pocket Handbook of Menerals
    A Pocket Handbook of Minerals, Designed for Use in the Field of Class-Room With Little Reference to Chemical Tests
    A Manual of Geometrical Crystallography: Treating Solely of Those Portions of the Subject Useful in the Identification of Minerals
    Handbook of Mineralogy, Blowpipe Analysis, and Geometrical Crystallography, Volume 1, parts 1-3
    Pocket Handbook of Blowpipe Analysis: Designed for the Use of Students and Prsspectors With the Idea of Making Oral Instruction Unnecessary