Gold costs were about $317 per troy ounce in 2007, but these can vary widely depending on mining type and ore quality; global mine production amounted to 2,471.1 tonnes. After initial production, gold is often subsequently refined industrially by the Wohlwill process which is based on electrolysis or by the Miller process, that is chlorination in the melt. The Wohlwill process results in higher purity, but is more complex and is only applied in small-scale installations. Other methods of assaying and purifying smaller amounts of gold include parting and inquartation as well as cupellation, or refining methods based on the dissolution
The Purity of the Turf The Purity of the Turf "The Purity of the Turf" is the third episode of the first series of the 1990s British comedy television series "Jeeves and Wooster". It is also called "The Village Sports Day at Twing" or "The Gambling Event." It first aired on on ITV. Adapted from "Indian Summer of an Uncle" (from "Very Good, Jeeves") and "The Purity of the Turf" (from "The Inimitable Jeeves"). Bertie's Uncle George wishes to marry a young waitress. Aunt Agatha is dismayed and, through Bertie, offers the girl ₤100 to break off the engagement; instead, however, Bertie meets Maud Wilberforce,