rge fissures extended along the galena and copper pyrites. The alloys, or its combina- tions with other metals, are very numerous, those with copper and mercury being the more numerous and The surface opening is from 2 to 6 feet most important. Gold and copper are found com- bined in all… … began about midnight of January 9, into purple vapors. Gold has little if 1784, continuing for a month. any affinity for oxygen. ‘‘From the 18th to the 16th of Janu- It undergoes no change on exposure to the atmosphere, and is not affected by hydrochloric, are of gray granite, with nowhere a…
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