edited by the Committee on the Lindgren volume, John Wellington Finch, chairman ... with contributions by C. H. Behre, Jr., S. H. Ball, P. Billingsley [and others]
by Alan R. Wallace ... [and others] ; with a section on Platinum-group-element (PGE) potential of the Humboldt mafic complex, by Michael L. Zientek, Gary B. Sidder, and Robert A. Zierenberg