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On new chromium and manganese compounds
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Mariposa Manganese
Manuscripts
The collection contains letters, documents, maps and reports related to the professional activities of mining engineer Harley A. Sill. There are reports on ores and mines and technical data, chiefly from California, Arizona, Nevada, Canada and Mexico. There are also some reports on mines in other parts of the United States and in South and Central America. There is also one small box containing bibliographical references related to mines and metallurgy (Box 15).
mssSill papers
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On two new compounds of chlorine and carbon, and on a new compound of iodine, carbon, and hydrogen
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718888