Show t. t INSTITUTE ACCEPTS t- t 1 ENGINEERING PAPER I v I Iv Local Treatise on Treatment of Ore Uses New Theo Theory y yA A paper by S. S F. F and Robert Rob ert Porter of the University 1 of Utah engineering experiment station on Oxygen Free Flotation has been accepted by the American Institute of of'S S 'S Metallurgical Engineers for presentation presenta tion at U- U the ti-c February meeting of the Institute to be held in New York it was was announced Thursday t. t The paper is of exceptional Interest In that the data presented is contrary to the generally accepted theory of ot i. i flotation by showing the presence of ot oxidation products to be unnecessary for the for the flotation of ot galena Other papers of the station which L have- have been published recently in Jn include t i- i elude dude The liThe Effect of Particle Size on p Flotation by R. R L. L Kidd and W. W A. A F Wall which appeared in the Mining 1 and Metallurgy magazine Evaluating ing jag Gold in Certain Placers by Microscopy Mi Mi- Microscopy by Arthur L. L Crawford In Mining and Metallurgy The Removal Removal Re t moval of Arsenic From Lead Blast I Furnace Charge by Roasting by G G. L. L Thomas Brighton and md andS and'S Donald P. P Wilkes which was published published pub pub- r S 'S in the Engineering and md Mining Journal |