United States or Grenada ? Vote for the TOP Country of the Week !
In the third case are Tellurium and Tellurets. In the fourth are samples of native Arsenic, and its combinations with nickel and cobalt; Carbon in its various forms, pure as in the diamonds, which the visitor will notice attentively, some imbedded in the earth in which they were discovered, and models of celebrated diamonds; Black Lead in porcelain earth, for which Cumberland is celebrated; Selenium in its combinations with lead, mercury, sulphur, and other metals; and a medallion, in selenium, of Berzelius, who discovered this metal in 1818.
Word Of The Day