'ENCOUNTERS WITH THE ARCHDRUID I-A MOUNTAIN', The New Yorker
Tags: 1970s; 1971; 1971-3-20; Conservation; Copper; David Brower; Earth Sciences; Geology; McPhee, John; Mineral Engineer; Wilderness
'The New Penny---and How It Grew', Colliers Weekly
Tags: 1940s; 1943; 1943-8-7; Chemistry; Copper; Crichton, Kyle; Substitutes
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