Show african copper center development of shenew the new copper district in northern rhodesia british south africa Is revealing indications of a most important field F five ive mines already arrendy are being operated and it Is believed that they alone hove have a potential production of tons of copper a year it Is expected that ap proximately will be in the next three or four years for power porter plant metallurgical and mining equipment american mining engineers are la in charge of practically every important mine in the district and the new industry Is being organized on the white lher basla basis be ause of the scarcity ity of native workers highly mechanized operations will be used |