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THEISSEN Gilbert theissen (gilbert) (2)

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    Author: THEISSEN (Gilbert)

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    THEISSEN (Gilbert). A Proposed simp1ification of the Parr unit coal formula. — Ash—to—mineral matter correction in coal analyses. Urbana, 1934. See ILLINOIS, State of. Department of Registration and. duoation. Division or tñe State Geoioical Survey. [Report of Envestiga— tions.] )2.

    Card ID: 98

  • card

    Author: THEISSEN (Gilbert)

    Description

    THEISSEN (Gilbert) and REED (Frai H.) St,udies of the graphical method of calculat.ing pure. coal calorific yalue. Urbana, 1934. See ILidNL)IS, State of. Department of 1.egistra— t.ion and Education. Division of hetate (.ieological Survey. 1eport or lnvest.iga.— tions.r32.

    Card ID: 99