LIBROS DEL AUTOR: richard l douglas

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  • Forgotten Caves of Bisbee, Arizona
    Douglas L. Graeme / Richard Wiliam Graeme IV / Richard William Graeme III
    During the last part of the 19th century miners at the booming mining camp at Bisbee in the Arizona Territory began finding natural caves. These caverns were more than the typical calcite and aragonite filled openings stained by iron and manganese oxides. These caverns contained substantial amounts of malachite, azurite, rosasite and even cuprite. As a result the caverns were a...
    Disponible

    24,44 €

  • A History of Manufactures in the Kansas Fuel District
    Richard L. Douglas
    The University of Kansas (KU) is a public research university and the largestuniversity in the state of Kansas. Created by the staff of the KU libraries, KU ScholarWorks is the digital repository of the University. It contains scholarly workcreated by KU faculty and staff, as well as material from the University Archives. KUScholarWorks makes important research and historical i...
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    20,09 €