Edward H. Russell was the inventor of the process for extracting silver from raw ore by lixiviation, using hyposulphite. This procedure was first successfully introduced in September 1884 at Silver Reef, Utah. Carbons of letters in bound letter copying b ...
castanoe - 2013-04-18 12:49
Dr. Wilbur graduated from the Harvard Medical School in 1863. He moved to Tucson, Arizona in 1865, established a medical practice and homesteaded ranch lands near Arivaca, Arizona. In 1868-1869, he was hired by the Bureau of Indian Affairs to conduct a ...
castanoe - 2015-06-11 09:16