Briefings • Gold Rises a Third Day in London as Weaker Dollar Spurs Buying - Gold rose for a third day in London as a weaker dollar spurred investors to buy bullion after the metal's biggest monthly drop since October 2008. Palladium climbed to a 17-month high. Bullion slumped 7 percent last month as the U.S. Dollar index, a six-currency gauge of the greenback's value, gained 4 percent.