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r F ,c a:,, y.--r, l prooess hot air and chlorine :gas are introduoed, under pressux•e', which penetrates the ore en masse and further digests it. Rfter which i,,.,, ;r; .,, , ,,.. t is elevated and conveyed into large open tanks wxth porous filter, and aub~eoted to a chlorination leaching with a solvent whlch is manufactured by the eleotrolysis of salt solution ~ 8 gh the ore on standard lines and whioh, after percolatin throu is x•oturned to elootrio oells where the Values which have boon dissolved by the colution are precipitated out by eleotrolysis and oollected and refined by ordinary methods. Tho solution is rot set set of oe11s ra~enarated and used over urned to the fi , again. ~ The prooess being a continoua one and the solvent being constantly regenerated and ]cept to stand strength. The following description will servo to give some idea of the size and oharaotor of the plant. Tha same will be insope/r- ation within 80 days, and have an immediate capaoity of 126 tons per day, tivith a crushing aapaoity of 300 tons per day. It is hoped by this prooess to handle the low grade telluride and sul- phide ores of Boulder county, which, at present, are not profit- able on aooount of excessive transportation and treatment ohargas. Tha aocompanying illustration gives some idea of vrhat the external appoaranoo of the now mill will bo. Tho flrat large building shotim is the laaohing room and is 80x300 feet; the ono in the road, for prooipitating, is 25x200 foatM the next ono in the road is the regonerating buildings 20x180 foot. Tho furnaoo pit shown on the loft of the out ie solid masonary, fifty foot square and seventy-five foot high, and in- alosas the oooling pit where the hot ores are proparad for the loaohing. ~ The orushing aapaoity of the mill, 200 tons par day, is furnished by three sots of monster roils 16x~4P inohea. Tha oruaher waigha 38,000 pounds. Tho ore is dried in two stool towers fifty