Gold parting in 1860's Australia. It is able to refine gold up to 99.5% purity. The process involves blowing a stream of chlorine gas over and through a crucible filled with molten impure gold. Impurities in the gold form chlorides before the gold does and these insoluble salts are removed from the melt by skimming the surface. Invented by Emil Wohlwill in 1874, this produces the highest purity gold (99.999%). It is an electrolytic process using pure gold for the cathode (or titanium as a starter cathode) and chloroauric acid (gold chloride-hydrochloric acid) as the electrolyte; this is made by dissolving gold
What Are You Going to Do to Help the Boys? What Are You Going to Do to Help the Boys? "What Are You Going to Do to Help the Boys?" is a World War I era song released in 1918. Gus Kahn wrote the lyrics. Egbert Van Alstyne composed the music. It was published by Jerome H. Remick & Co. of Detroit, Michigan. Artist E.E. Walton designed the sheet music cover. It features Uncle Sam inside a red, white, and blue question mark. He is holding his beard and looking down at liberty bonds. To the left of this image it reads, "Buy a Liberty Bond!" on some editions. The