Richard asks about U.S. Bureau of Mines publications from the mid 20th
century. From my experience U.S. government publications can be a useful
source of statistical information. For current data, including Bureau of
Mines material, see the following website -
http://minerals.usgs.gov/minerals/pubs/salepub.html
Peter
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Peter Claughton, Blaenpant Morfil, Rosebush, Clynderwen,
Pembrokeshire, Wales SA66 7RE.
Tel. 01437 532578; Fax. 01437 532921; Mobile 07831 427599
University of Exeter - Department of History
School of Historical, Political and Sociological Studies
E-mail: [log in to unmask]
Co-owner - mining-history e-mail discussion list.
See http://www.jiscmail.ac.uk/files/mining-history/ for details.
Mining History Pages - http://www.exeter.ac.uk/~pfclaugh/mhinf/
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