983 resultados para Lewis and Clark Caverns


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Report on a review of the funding for construction of the Lewis and Clark Interpretive Center at Lewis and Clark State Park in Monona County for the period February 25, 1999 through December 31, 2008

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Although Lewis and Clark literature has proliferated in the last decade, few works have added scholarly discourse to this field of study. The highly focused Venereal Disease and the Lewis and Clark Expedition, however, will likely stand out on the Lewis and Clark bookshelf as an important contribution.

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The Golden Messenger Mine which is approximately twenty-three miles northeast of Helena, Montana, near York, on Trout Creek, has long presented several problems of both theoretical and practical interest.

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This thesis is concerned with the beneficiation of an oxidized lead ore. Emphasis was placed upon concentration by flotation rather than by gravity methods, although some investigation was made with the Wilfley shaking table. The concentration of lead minerals received most consideration in the problem, but wherever possible attempts were made to increase the silver and gold concentration along with the lead.

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Includes bibliographical references (p. 286-287).

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Vol. 8 has title: Atlas accompanying the original journals of the Lewis and Clark Expedition, 1804-1806, being facsimile reproductions of maps, chiefly by William Clark ... Now for the first time published, from the original manuscripts ... together with a modern map of the route ...

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Mode of access: Internet.

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Also published by A. S. Barnes and company, New York, 1904, in the series called The trail makers.

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Includes bibliographical references.

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Photographic frontispiece with portrait.