Show ing ore TOE THE fruits from tho the find and engineering jonnita we are indebted to t mr john adams tile superintendent of the owahee owyhee and other mills milla it at silver city idaho for some interesting vales notes upon of tile pitt pan as practiced by y liim him the employed for diffor dolfl lr clit purposes connected with it the he amalgamation are salt alt sulp sulphite liate of copper sulphate of iron sal pat aimoni an ac sulphuric butic acid pot asli gain cile cate cb chiu and ana cyanide tf of potassium of W winch lie sal hal ammoniac ac and sulphate of free iron are arc used by wine some mill men of abe lit district but not by mr chemical action 11 is algo aleo due to the qui c 1 pila r the iron paris pans tile friction fri cion of the grinding surfaces and the heat given by tho the introduction of steam learn the exact elect of some of the chemic chemicals alsis is a moot question I 1 ur mr I 1 adams ams whose training anil and pi practical attical experience entitle Us lis opinion to giedt respect speaks substantially as follows concer concerning tsing tile the sub eject as a connected with willi lie ores 11 ill 1 does not think albil salt alone annc chloro dizes the ore ora in tile the pansi parts illo ho it t exercises a stimulating effect ottonie kind upon tin the amala amalgamation mation as LL he has flag proved to lis disown oni satisfaction ly by working dit different Terent charges of the same ore with wilh nothing but quicksilver rind and with nothing but salt and quicksilver uc he finds ends however hoever that tho the effect though decidedly beneficial benefi cul Ps ii not very strong we are inclined to infer from these observations that the llie salt does docs decompose anil and therefore earia certain in in ill the ore possibly blonde blende and galena anil and that these minerals are arc minor element of leeore lie ore sulphate a phate of copper ashen it hen added a alone 0 to tile the quicksilver ui silver in tile the pan maida assists the amat amalgamation mation this mr killing adams explains explain is as follows follow a r the sul eail pilate of copper is decomposed in con tat at with the iron of tho pan formin forming 1 sulphate of if iron anil and metallic copper the latter continues lie file decomposition of already partially decomposed silver sulp Lureta in the ore but this effect tari ct does docs dot amount to a complete reduction or cr tho the silver which indeed cannot be with will either salt or sulp sulphate liate of copper alone chemicals together however give rise to a strong reducing agent the lie sub chloride or of copper mr adams adame that this substance employed in the proper proportion and for a sufficient time will entirely any of the minerals of silver except those containing 0 au antimony chichi salt bait and sulphate of copper ripper even employed together fail to attack any ny effect from sulphate eul phate of iron or sal gal ammo niao he ha has failed to discover sulphuric acid will to a certain extent decompose sulphides sulp hides of iron and add copper thus freeing some socie gold and it attacks in a similar manner compounds of iron lead jowl and copper vi aich do not contain antimony ver if kerosene tar or machine grease gets into the pan with the pulp sulphuric acid will destroy it and thun prevent the contamination or of the ile quit kliver wic which h is detriment til t to L us a this T his acid also to he keep er el clean an th the surface of the iron fifth of the pan which w is sets ia thus enabled to exert continuously the reducing action frequently tallow grease and can call illeen ille en ends a atta are brought brois ht in ia the ore from the mines and pus pas into the pulp where if not counteracted they will coat the mercury tho the use of in the pan fan destroys the grease and frequently in ia drawing a charge inta inti the settler a thick scum lice cilc sort soft soap will bs be seen beef floating on the surface odthe of the liquid while the tha quicksilver comes come out perfectly cleao clean aud and rig a bright as als a mirror isair cyanide ty anide of vot potassium andam has a beneal cial effect ia to abe lie pan but its use in it adequate quantity is too expensive at present prices it may be employed with advantage however to clear clean the quicksilver or to collect it when soured or granulated gum catel catec nu is also ri a cleansing canting cl agent the mill process at owahee owyhee is ia or cs son senti illy the wahoo protects pr 0 cess in taa abu a mill the ore is broken it in u I 1 alite ill ile cr and delivered to the iio bat basteri teri n where it is ked ich aith water and di through screen percent li it icing in I 1 I 1 I 1 holes per Blu squire inell full tanks in III these tho the pulp sett mettlea lea awl tile the wati walar ir cwm a through other oilier wiling jail bais anil and out of the mill 1 the phase fc of which there aril are five in aliese the llie light slimes ire precipitated p hamod 1 to be recall keyed by maani of 2 tra triin nay bull wheels rope and cir car tt t the milt mill for aurther furl lier treat treatment the pulp ii taken ly lj means of a car from tin the battery tanks to the pao pans nero it il is mixed ground grobol and ardal ga mated for six sit hour bours etc elcon mand aal che cals loins being employed to basist the process bious tile pans tle charge passes into settlers thence hence into agitator thence w I 1 i unger flats concen orators and arvana fillies lind and finally the llie balliu s paa over ovar a etring of blanket sluice 5 the ai average yield of chiq mill without reckoning the of the reworking working rc of tho the blime in n 92 per cent of the lire fire assay this inest Us acin y be a r id as a the int successful application p pi ti bof of the washoe clr procesa ical in lb the c I 1 auntry is 1 I 1 y tile character ll artio LC or of the or ores no do daubl b t their reduction but the extraordinary efficiency of the mil is is certainly due in large part to well constructed construct cil and to most skillful rind and faithful f superintendence coupled mith constina cons cou stint study of the mechanical and metallurgical pro blocs blews involved our friends frienda who find in the sup PO posed be d imperfections of this or that process an excuse lur for heavy licad losses of the precious in reducing ores ore 11 would on la do well t noto note such i instances a lances as tills and profit by the example cit mple |