111 resultados para Placer deposits


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Mode of access: Internet.

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Bibliography: p. 20-22.

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At head of title: United States Department of the interior.

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Bibliography: p.837-907.

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Reprint. Originally published: London : Geological Society of London. (Geol. trans. 2nd series ; v. 5).

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At head of title: 20th Congress, 2d session. In Senate of the United States. [Doc. No.] 92.

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At head of title: 22d Congress, 1st session. In Senate of the United States.

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pt. I. Base metals.--pt. II. The Witwatersrand and Pilgrimsrest goldfield and similar occurrences.

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The designations "t.l", and "t.2" do not appear on the title-pages of the respective volumes, and the "Introduction", a separate part, is not uniform with the other volumes, being printed in larger type upon larger paper.

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Includes bibliographical references (p. 2-4) and index.