Show F u i. i EXPERIMENT STATION ISSUES TWO BULLETINS t Metallurgical Treatment of Low Low- Lowr i 1 grade and Complex Ores of Utah is r the title of a pamphlet just issued by bythe bythe I Ithe the United States Bureau of Mines and the department of metallurgical i r research of the University of Utah 3 J The authors of the pamphlet are Dr r D D. A. A Lyon R R. R H H. Bradford S. S S S. S I r Arentz O. 0 C C. C Ralston and C C. C L. L LarI Lar- Lar tr I son r The paper is a preliminary report and andI jr on an investigation into ways I j methods of profitably treating low low- f. f rh grade ores It contains an exhaustive I i summary of mining conditions and methods m throughout the state and suggests some important problems that must be met by Utah's mining industry A University bulletin has also recently re- re recently been issued by the engineering the experiment station dealing with searching of zinc-lime zinc ore with acids The The material is reprinted from the March larch number of Metallurgical l and written written written writ writ- Chemical Engineering It was ten by O. O C. C Ralston and A. A E E. Gart- Gart side |