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Show PRODUCTION OF COPPERCURTAILED WASHINGTON. Jan 10 Curtailment Curtail-ment In the production of copper ores at Butte and tho treatment of a decreased de-creased tonnago of bIHcIous ores iu Fergus nnd Chouteau counties caused caus-ed a decrease In the production of gold and silver In Montana in 1011, according to V C Helkes of the United Unit-ed States geological survey How-over, How-over, the increased production fiom placore and mines yielding sulphide Iron ores helped to offset the de-creaso de-creaso in copper and sillclous gold ores. Tho placer mines yielded approximately ap-proximately 10 por cent more gold in 1910; Madison, Jefferson and Broadwater Broad-water counties showing substantial Increases |