Blar i NGU Open Archive på forfatter "Krogh, J. v."

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    • Undersøkelser over norske lerer I 

      Krogh, J. v. (NGU (115), Journal article, 1923)
      In this little pamphlet are given some results obtained on Norwegian clays. The work, which was undertaken by \"Statens Raastofkomite\", commenced in 1922. The clays have been examined systematically, and the methods used ...

    • Undersøkelser over norske lerer III 

      Krogh, J. v. (NGU (119), Journal article, 1923)
      In this publication are given the results of a series of special investigations regarding Norwegian clays that were carried out by the State Raw Materials Commitee in the autumn of 1922 and spring of 1923. Pages 6-11 deal ...