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Foreword By Will Mitchell Jr.Jan 1, 1957
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Contents
Jan 1, 1910
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Treatment Method By Ore Classification
By R. S. Shoemaker, F. W. McQuiston
Ore Classification / Mine Where Used / Treatment Method Table page
Jan 1, 1975
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Contents
Jan 1, 1955
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Contents
Jan 1, 1944
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Production In Somerset County
The only real data available begin in 1873. The total figures are all estimated from these. [ ]
Jan 1, 1942
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Contents
Jan 1, 1946
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Contents
Jan 1, 1944
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Contents
Jan 1, 1947
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Report of the Council for the year 1906
Jan 1, 1908
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