BATH, in Metallurgy, is used to signify the fusion of metallic matter in certain operations. In refining or cupelling, for example, the metals are said to be in bath when they are melted. When gold is purified by antimony, this semi-metal melted, is called by some the bath of gold; alchemists, who consider gold as the king of metals, call antimony the bath of the king only; because in fact gold only can resist the action of antimony.