00325nam a2200145Ia 450000500170000000800410001702200090005802400070006705000170007407400120009124500250010326000130012826000290014126000090017020250523171542.0250508s9999    xx            000 0 und d  a4649  qGM  a01GM          a1004649 0aGeological Magagine.  aHertford  bStephen Austin and Sons.  c1956