Rare Books
Treatment of gold ores in Gilpin County, Colorado
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The gold mines of Gilpin County, Colorado : historical, descriptive and statistical
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A new process for the extraction of copper from its ores : with notes on the treatment of gold and silver ores
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(295) Bard Creek Mine, Gilpin County, Colorado
Manuscripts
The collection contains letters, documents, including 190,000 reports, 1200 maps, 500 photographs, and 8200 pieces of printed material related to the life and career of Ralph Arnold. Subjects represented in the collection include: mining, petroleum, and seismology in the Western United States as well as Canada, Mexico, Cuba, and South America; political papers from 1914 to 1956, mostly concerning the campaign of Herbert Hoover for president; family and personal papers from 1836 to 1961 of Arnold and his father, Delos Arnold, containing source material on Pasadena and Southern California local history. The collection also contains Arnold's field books, including those made at Stanford University with the U.S. Geological Survey from 1900 to 1909.
mssArnold
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(245) Nesmeth Mine (Radium), Gilpin County, Colorado
Manuscripts
The collection contains letters, documents, including 190,000 reports, 1200 maps, 500 photographs, and 8200 pieces of printed material related to the life and career of Ralph Arnold. Subjects represented in the collection include: mining, petroleum, and seismology in the Western United States as well as Canada, Mexico, Cuba, and South America; political papers from 1914 to 1956, mostly concerning the campaign of Herbert Hoover for president; family and personal papers from 1836 to 1961 of Arnold and his father, Delos Arnold, containing source material on Pasadena and Southern California local history. The collection also contains Arnold's field books, including those made at Stanford University with the U.S. Geological Survey from 1900 to 1909.
mssArnold
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(314) Tilden Mines, Clear Creek and Gilpin Counties, Colorado
Manuscripts
The collection contains letters, documents, including 190,000 reports, 1200 maps, 500 photographs, and 8200 pieces of printed material related to the life and career of Ralph Arnold. Subjects represented in the collection include: mining, petroleum, and seismology in the Western United States as well as Canada, Mexico, Cuba, and South America; political papers from 1914 to 1956, mostly concerning the campaign of Herbert Hoover for president; family and personal papers from 1836 to 1961 of Arnold and his father, Delos Arnold, containing source material on Pasadena and Southern California local history. The collection also contains Arnold's field books, including those made at Stanford University with the U.S. Geological Survey from 1900 to 1909.
mssArnold
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Reo Truck with gold ore from Nye County, Nevada
Visual Materials
The Harold A. Parker Studio Collection of Negatives consists of 5157 glass plate negatives, film negatives, and panoramic negatives, 1889-1949, that depict commercial, residential and landscape sites in and around Pasadena and Southern California. The images provide a look at the commercial, residential and social development of Pasadena and surrounding areas during the early years of the twentieth century. The collection is especially rich in images of residential architecture in Pasadena, Altadena, and San Marino; images of Lake Tahoe; depictions of, and activities at, the Raymond, Maryland, and Huntington Hotels in Pasadena; and the commercial, social and cultural landscapes of Pasadena. The collection also provides, through its breadth and depth of subject matter, an example of the career activities of a commercial photographer in Southern California in the early years of the twentieth century.
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