Technology and labor in copper ore mining, household appliances, and water transportation industries.

"May 1993."

Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin.

Mode of access: Internet.

The copper-bearing rocks of Lake Superior,

Abstract of report issued as Monograph of the U. S. Geological survey, vol. v.

Zinc and lead deposits of southeastern Alaska.

Includes bibliographical references.

Special reports on the mineral resources of Great Britain.

v.31 Ball clays -- v.32 Granites of Scotland -- v.33 Synopsis of the mineral resources of Scotland -- v.34 Rock wool -- v. 35 Limestones of Scotland -- v.36 Cambro-Ordovician limestones and dolomites of the Ord and Torran areas, SKye and the Kishorn area, Ross-Shire -- v.37 Limestones of Scotland : chemical analyses and petrography

Geology and ore deposits of the Afterthought Mine : Shasta County, California.

Mode of access: Internet.

Results of exploration at the Copper King mine, Larimer County, Colorado /

"April 1953."