Ashley River Phosphates


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The Phosphates of America


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Bulletin


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A Preliminary Descriptive Catalogue of the Systematic Collections in Economic Geology and Metallurgy in the United States National Museum


Book Description

The systematic collections in economic geology and metallurgy are designed to show the actual occurrence of each metal and the processes used in their extraction; to these are added illustrations of the occurrences of non-metallic ores and their utilization. The systematic collections should be carefully distinguished from the geographical collection.







The Published Writings of George Newbold Lawrence, 1844-1891


Book Description

The beneficial influence of the labors of Mr. Lawrence on the progress of American ornithology has been great and undisputed, but it was particularly among the avifauna of the West Indies, Mexico, Central and South America that his most strenuous efforts were exerted. A scrutiny of the titles of his numerous papers will fully indicate the wide scope and excellent character of the work of this veteran ornithologist.