Australian Mining History Monographs Number 7, The Role of Minerals Separation in the Development of the Flotation Process. Paper presented at the Australian Mining History Association meeting, Adelaide 5 July 2000. Publisher: Zlota, Strathfieldsaye, Victoria. 45 pages.Ralph W Birrellgold, goldfields, gold, mineral separation, mining history, australia, minerals separation, flotation process

Mining & Geological Journal January 1940 Vol.2 No.2 Mine reports Chewton Gold Field, Geological Glossary, Flotation Process, Wonthaggi Coal Field published hald yearly by he Department of Mines Victoria contains photographs, maps and illustrations.gold, mining, journal

Theodore Jesse Hoover, brother of the 31st President of the United States, was born in West Branch, Iowa, on January 28, 1871. He attended Stanford and received the Bachelor of Arts degree in Geology and Mining in 1901. Following graduation his professional career started with the position of assayer for the Keystone Consolidated Mining Company. After one year, he became assistant manager for the Standard Consolidated Mine, and a year later he was promoted to manager of the operation. In 1907 Hoover went to London as general manager of Minerals Separation, Ltd. This company was developing the froth flotation process for recovering minerals from ores. Hoover took an active part in the development of the flotation concentration process and authored one of the first books on the concentration of ores by flotation. After four years with Minerals Separation, Ltd., Hoover entered private practice as a consulting mining and metallurgical engineer with offices in London and in San Francisco. He was very successful and held positions of consulting engineer, managing director, director, and president of many mining companies in America, Europe, Asia, Africa, and Australia. He returned to Stanford in 1919 as Professor of Mining and Metallurgy and Executive Head of the Department of Mining and Metallurgy. His experience and ability in organization made him a natural leader. He was influential in the formation of the School of Engineering at Stanford. The School was formed in 1925 and he was made dean, a position he held until his retirement in 1936. As dean of engineering, he promoted a broad fundamental training program for undergraduate engineering students. Under his guidance, emphasis was placed upon graduate work and he was responsible for developing strong graduate engineering curricula at Stanford. While dean he continued teaching and his course, "The Economics of Mining," developed into a book which was published in 1933. He became interested in the functions of engineers and, with Professor Fish, wrote a book entitled "The Engineering Profession" which was published in 1940 and revised in 1950. In addition to his academic activities he was generous in his hospitality. Faculty and students alike enjoyed the annual field day and barbecue at his Rancho del Oso, near Santa Cruz. He was widely read and had a lively interest in all the things he encountered. He speculated on the antiquity of man and man's early production processes. To verify an idea regarding flint tools, he studied their shapes and became proficient in making arrow heads. He was also interested in wild life, and was one of the founding members of the Cooper Ornithological Society. (http://engineering.stanford.edu/about/bio-hoover)Blue hard covered book of 547 pages including an index. Contents include mine valuation (sampling, ore deposits, ore reserves, financial provisions, sale of mineral product, metal prices, reports) and Mining Organization (Co-operative effort, Mining Companies, Promoting Mining Enterprises, fluctuations of share prices, valuation of mining shares, fakes and fallacies, the mining Engineer and the law) and Mine Management (Organization of staff, mine manager, efficiency, industrial relations, training and discipline, safety).inside cover 'Charles Bacon Mackay School of Mines'.mining, economics, hoover, stanford, mackay school of mines, mackay, bacon

The book was used by Charles Bacon who studied at the University of Nevada in the late 1930s/early 1940s. Bacon worked at Bunker Hill Mines and Kellogg Idaho, before arriving in Australian in 1951. He worked for CN Myers, a company involved with paper converting. CN Myers was a family business (on Charles Bacon's maternal line). The Mackay School of Mines, Nevada was established in 1908. At the time of writing this mook T.J. Hoover was Professor of Mining and Metallurgy and Dean of the School of Engineering at Stanford University. Theodore Jesse Hoover, brother of the 31st President of the United States, was born in West Branch, Iowa, on January 28, 1871. He attended Stanford and received the Bachelor of Arts degree in Geology and Mining in 1901. Following graduation his professional career started with the position of assayer for the Keystone Consolidated Mining Company. After one year, he became assistant manager for the Standard Consolidated Mine, and a year later he was promoted to manager of the operation. In 1907 Hoover went to London as general manager of Minerals Separation, Ltd. This company was developing the froth flotation process for recovering minerals from ores. Hoover took an active part in the development of the flotation concentration process and authored one of the first books on the concentration of ores by flotation. After four years with Minerals Separation, Ltd., Hoover entered private practice as a consulting mining and metallurgical engineer with offices in London and in San Francisco. He was very successful and held positions of consulting engineer, managing director, director, and president of many mining companies in America, Europe, Asia, Africa, and Australia. He returned to Stanford in 1919 as Professor of Mining and Metallurgy and Executive Head of the Department of Mining and Metallurgy. His experience and ability in organization made him a natural leader. He was influential in the formation of the School of Engineering at Stanford. The School was formed in 1925 and he was made dean, a position he held until his retirement in 1936. As dean of engineering, he promoted a broad fundamental training program for undergraduate engineering students. Under his guidance, emphasis was placed upon graduate work and he was responsible for developing strong graduate engineering curricula at Stanford. While dean he continued teaching and his course, "The Economics of Mining," developed into a book which was published in 1933. He became interested in the functions of engineers and, with Professor Fish, wrote a book entitled "The Engineering Profession" which was published in 1940 and revised in 1950. In addition to his academic activities he was generous in his hospitality. Faculty and students alike enjoyed the annual field day and barbecue at his Rancho del Oso, near Santa Cruz. He was widely read and had a lively interest in all the things he encountered. He speculated on the antiquity of man and man's early production processes. To verify an idea regarding flint tools, he studied their shapes and became proficient in making arrow heads. He was also interested in wild life, and was one of the founding members of the Cooper Ornithological Society. (http://engineering.stanford.edu/about/bio-hoover) Blue hard covered book of 547 pages including an index. Contents include mine valuation (sampling, ore deposits, ore reserves, financial provisions, sale of mineral product, metal prices, reports) and Mining Organization (Co-operative effort, Mining Companies, Promoting Mining Enterprises, fluctuations of share prices, valuation of mining shares, fakes and fallacies, the mining Engineer and the law) and Mine Management (Organization of staff, mine manager, efficiency, industrial relations, training and discipline, safety). Inside front cover 'Charles Bacon Mackay School of Mines"charles bacon, mining engineering, metallurgy, university of nevada, mackay school of mines, stanford, bacon, mining, economics, divining, theodore hoover

Wooden model of a cyanide plant. A cyanide plant was used for dissolving gold from finely divided ores by means of dilute solutions of sodium or potassium cyanides. The model has five metal bins, there is some rust on the bins and scorch mark on the wooden base.mining, equipment, cyanide plant, gold cyanidation (also known as the cyanide process or the macarthur-forrest process) is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. it is the most commonly used leaching process for gold extraction. the ore is comminuted using grinding machinery. depending on the ore, it is sometimes further concentrated by froth flotation or by centrifugal (gravity) concentration. water is added to produce a slurry or pulp. the basic ore slurry can be combined with a solution of sodium cyanide or potassium cyanide, however many operations utilize calcium cyanide, which is more cost effective. to prevent the creation of toxic hydrogen cyanide during processing, slaked lime (calcium hydroxide) or soda (sodium hydroxide) is added to the extracting solution to ensure that the acidity during cyanidation is maintained over ph 10.5 - strongly basic. lead nitrate can improve gold leaching speed and quantity recovered, particularly in processing partially oxidized ores.