Potosi journal. (Potosi, Mo.) 1894-1929, 1920-09-22

clean ot any valuable ,niLe-gl to tie
bottom Of the vessel
-Ct course the process Is made 70
run ccnti'ue-gsiy, and In so,De mills as
much IS 400 it-ns ot mineral In tro,h
Il separated each dhr. Altogether La
1915 there were 60 Cstl .011 tons Of ore
treated by the fota;ion process.
ceree-s Fu..-. rece.es - a.Ashies
~ may truly Ne SAID tha. the future
O. copper T,-ndCctira and therefore Of
The electrical industry. Is very largely
dependent or the same forces that are
ct work In the soap bubble
Professor Tacrart declared ths. the
demand fnr specialists In ore dressing
with expert knowledge os the dexiyu
and oI-era ton of the h%wildering array
oi machinery Dow employed has he
come 80 insis,ei, tina. schoo, cur-icuia
rpus, t.e altered 10 offer the necessary
preparatory COURSES.
-0re dressing 10 &c tndssz.+asshse
Ink hst~~~0 mansax and metAIiurxy N
presefs,-c!ay practice In the extraction
Of metals from the earth" said Pro
fesso- Tacsart. i, consists in moo.
chen!cal cnrcentru,ton OF the valuable
part q! an ore ir!c bulk much
smaller than that of the original ore,
and at the same time rejection as
waste Of the worthless PARTON.
"ta.ji atssat fifteen years ago most
ri,lss werp snail as cciny.aresi xt,h
present day standards and the ores
were relatively high grade The ore
Treatment problem was a simple one,
ard as q result the technical ks we'll
as the executive direction II the ore
dress3isc plaa. aca,d he and waS Incl
deI.4i TO the direction with v alch the
c,ac.atrsta- WAS built
Tic services Of sysectsifss tn eco-
c.n'raiion 1ere ceaeA,ser-i unnecps-
Ssry. With tho Development, of the
&rs''. how s-s'is. disseminated cnp,~~
DEPOSITS 'he 'js"r'ane~ & ar~ dress
ll- !Nok sn 'iea .,uaaiA TA~~e a~yos
It's caatsis only from t~rr,y to forty
pounds %! cvPIer per ten nj ore. T.,
ore b., IS originally discovered eeo.
,ain.el fraG .sis0.6c 80 itsans1s sO
,a2. each O: sGch ore. For e<xaaos,tfcsi
M,sA~s Of such deposits elaborate
eoucsTa:ra,'ns plants ca,ahse Of han
ding fruin $500 20 bltas ts~s at GRE
Isg sssy ws.s ss-es<ary,
skiiifui Werk sc~ preAa
"Th"s" plants rsaasr~i the rsas.
skilitu; rIN~tion possible Il prot;
VAS TO he tsasds frorrs ,h~,r operation.
and q icHszaa fer specialists Il eya-
centr@'ion Immediately .ssss. wT,h.a
the last >sVe.. .s~r~ thr sscs~~stal ar
rll.s lse.o ~ progresses Il frssh aosstisa
10 the Treatment; cf ;ht-~e iow-grvae
ores has resulted In the saving as feus
to sss lSsags'is sssar~ essspes ,-- ,sa ,hsa
~as formerly i-ssSiaia.
The sisvmt ~ fsss,.siaa ralsss! foe 4
sii,i snnn III lassth egssaa~r sr.~nstsr
education ti,an the odd c>,tac~asrxttoa
progresses ys.sn;i>-i 4 ncsxfscn msn
nsa ,aeeas working knewse<.xe II
the nssaesi .s.Gnct. sf s,AyxasAi ehcnlks-
try, viz callosi ssssssssssr,, ana should
sls.a have sss44s scQsssD,anee with o.
nansc chemistry. cosscsssea, with the
advent - ecsa'2eu ia niliias shr-s has
he~a G revolution Ia tAs ss<tAsds of
grinding esx-s r-Ss&rasesy 20 ecscen
tratssa. u the cid cecs~ssrsitca
,ss~~sscs n wxs impossible - eyx4s
very rnely Sround ore s-cuocsniealss.
"flessce all grinding WAS asEe wtsA
the cad 10 view - ,sr~ssctay ~ ,s.;ie
sii.sse as isas<ssAc ffesxt.on. however
wo.s. scs; ga hnesy posvvstsed ore.
tiess>A Il Was tesesSsrs. en the insrs
tacsiSsa cf eesattoe. to aesese methods
ct grinding s.iT-rvss fsosn these q, tia,
time tn ss<, ssch methods h<,as a,sa~d
ST prS~iuS.nx s,iHs~. This rvsaissSa IA
ta~ tn;r~sacssea u rssaisas snschsn.-xy
Il al casi,e,y 1l1ssrss typ~A In co..
nec.son With ,s.< new grinding and 10
tstior ss&chtn-sy there MAS n<<esnar<ly
,As~asss~a ss>s machinery for dining
and sss~as-r.n< the fzssy srssaa rsed-
oct.
~rNe ps~a sAs wte sucrrsssalty
kxI-.,se ,his ~sxs rsass antessfar.s she
rAysscsi pxsnssi,s-s aasa<ssstnx the sp
-rs,isns es ore csscratrstisn. end
mess hsvv. In sdsisssa. th- esllas~eHi
~ssxsn-~ssne knc~bs~ass essssstai 10 she
A<>aEn.nx ef ssrvctsrrs a. tks install
httsa ~ nsrAlarsy. sumrtsas gEHs0 -
- uGonen1u e Gulnnm1D q -