by Hess, Frank Lee
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Bibliography of the geology and mineralo...
Colorado ferberite and the wolframite se...
Molybdenum deposits
A reconnaissance of the gypsum deposits ...
Tungsten minerals and deposits
Oölites or cave pearls in the Carlsbad c...
Market for Columbia river hydroelectric ...
Nonmetalliferous stratabound ore fields
Limestone, dolomite and magnesite resour...
Magnesite
Magnesite as a refractory