New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1890-09-30

(a1teE pdyIu8 eh CAP'hS~' '-
taxes observation-disclosures" S'''00'''''''
or 1910 per cent.
PHILIP S. MILLER, General Agent
for New.York City and Vicinity and New-'ersey
Wall St., New.Yerk City.
70 varr,nt IN. erection Of holsting pumping ana
Sn.owncrs will readily understand that no rss
rnies can he laid down where the uaSro
and local conditions eonsanay, NrN,a and com
establishing large works, the nlos' '''''"'"
prehensivo tosts should be msae'
MAGNpTIzlNG IRoNoRE.
Clemens Jones, Of lIokendauqua, Penn, read
noper on The Magnctization Of lron-Ore' !"
said in effect: .,.,. q, Tho
Modern ingenuity has u,ilizea tne I or Itself to
separate Tie magnetic oepnnlss' T Ss pr rae RE- re-
which has previously been fr sneSenac very rich in
iron and in some dsrbc for Dc.selner pura
l. ) Dana clas,ihe. t!e nature, pyrruhoiite
unkIinte, anaidite aud minerals ront' x,a. cor or
Siderable Feo.' "f these ierH, "t,nate smount Of
rs "x,ds e,sen,ia to MAGNETIC the compound Is
bot established Ferou, OXIDE appears " W Wv
only m sasr c SHine u od xxiv oo produced fer
rous oxide in the auhydrs sate oy arto Oh ~ t
SOsds 9" rSSS fcso iron a; F'u r TS
tanc and magnetic. Heated to redress 10 TIC "'r'
sa ssnSG o%1 r Msnt sv also pfsa1ssa
oxide exhibiting %aSne nJ s"e fuse IT,
in sahen t1bs pas in tGS mas s acriS sr'c
on,sn r5rn small ' lnsmt, S hy
emitting prccpiato Of fcrc rydrate The pTssri"c
of ferrous oxide In magnetic whether as nnd"t
con stitrcnt Of the compound, or a> an ndePSnue'
%oecae seems to communicate the property Of nag
MAGNETIC oxide ,s Of I1 rn the al arod
Il carbon doxde simple dsternnat t rb S0s aid Of
prrlductS mAgiictC ptTtlcic-' w
Stag glObules from nearly all iron-llcrals ~ .xh,,t
spaae DSn @s ea0 now
over 20 In. presence Of metallic particles N the roaea
Carbon a%nSs acu ,s s such aa ores the
drrssIuc at ts zinc works at pribram, BoheI'a &c
seriSed BY EMS Clark ir. Trans tx. 4'b' FUR
im nearly all cases the carbonatcs OF iron sm n
~ treated minute g'obnc;.. OF wr, ,,hruo p the ea
pusion OF the carbon dloxidc contained ~ t,r "r'
vim cents. Of SHISo. T' s seIr ANA
is r.duc,ion OF part The elrou" oxide ~ TIE mciS
maen.,,c nut. from the fllc nature Of the Orc
extremely difficult n 70 D Dr,y ali f"n nC"1d
during the prne; 50 s- ,ha ., Sks. with TN. ore
This circumstance together with the rNpen' OF cr,i
%, the Of Gr1 IRON o "sSc from nf Cue
profitable such cs.c, pFSr.md 1n1 nr Dga Is
Iiematlt. is sometime, magnetic. and according 70
Dana cyen magnet p"lor-oi c"mr'c " ~, Hn
Sc1r Of r. ar wy. as well tnrne.s Of '
sia ton p',en' magnec hcnn,s Is NJ" ,rrc
OXIDE which sppo.cd TO be ,cnd'mr"nrptt m,or
nagnc,itc is attra by TIC nasn",; ucr,n ne s"n
,uIs with r, stalls ri nar;!,r. The ore fro:n tl'
Jnrsena hiines. IN cuba i ia pax h"s"ou''
The .nhydr,n> oxides Of iron in general are mag
nc,c. brown hcmatitc or limoni'e ~.h VIM s'' Wi"
a" the III varieties Of hydr,u@ OXIDES. ar" l n"n
magnetic ard have n" rr%'' o, I ,Eea. osa. =
Iimon,s. arcaoa 3lI2o. ~ part watcr oht"'
rc.t,3 ii2O. " IQ1 parts water lurs''' -'c-''
NO. or 81 parts water
THE IMPORTANCE OF Ri WN HEM \T'Ti:''
The Importance of the brown hcm'tit"' j. Indicated
hx Oh, au,uut ,d ,u,h ur> ro.i,rincsi III the manu-
hc,ur- az iron ia this country and abroad. NJ "ic
time brown uic considered ihi>p'h'h'" -: inc
PRODUCTION II foundry :un. Prior t" TIC dc'copf''
Of the Lake Superior lena'tc rci"n> b'"h hc'"a''c
was the chief ore In ne ~ Ahie'a IL o''"''
sluud,n,ly throu hout Grrman'. II supplies bE lar
the greater iun-.r Of trc' Il iron works ana IL V'fe
.,.n I'm nnal,i Russia cic. In England tho ii'Icu
Forest of bean supplied 6rcht aIandti,c o H. i''
AN, still vast Lsc, 81 the Blown N"'''ir' nh""'"cu
In ENGLAND and thl, country they "cnr IN hcA'ly
| ever, state ~ the CEi"n. since u" '.''c'' "a 'e
r,,n LAKE. superior hcu,nitc Ores. hnrlI'd' OF pro
durivr brown hcnattc orc t!l:rs leave b'ch ava =
Iuurd and tlrr, AT, still numerals lndc.rlopc "u,
TO-, lean TO he handled proh,lhiy. In irih-, ~ = ~.
mo ,ui"c ,f Icuirl and *urLa.nptOn cDIitir' nave
turni,cd for quarter oi ccntur, tl" i"% n''i''I
Of nearly half the iron made IA ~ Lchs!; Nnl.",.
Win III" cA'cI'''
calt. named ina, " 'oi>'"ci,u 10 TP'c,t al ";
Iir, varicllc, vi bo"n n:'a" ORE, ~ ,n ps" ,he
u,iy the better grades are III liN'' anu Va VN- ..c
supply IL Limited IN iIV,NueA'ioh VI ,ne t,"...,
palac and Weld Of .r! OF ,n,e mine, me, Tor ~. Ic,r
ioi; showed that over lUU,O)" tons G" ti'' ore rp,
resented b, fully 500 sampirs ana ahnls'' aNcrat',
ONLY ~ per cent OF metallic ir Ihrcc 'l'aF''.' oi
| this was wash ore The bulk OF TINS ore whhh WIZ
fairly represent the majority oil thiN 'la.s VI h' W
| the United states VIII carry a'o"' IN Pc' 90" VI
| metallic r,n In tho wash orr ~ ,.
Examination of the Iron oAidc' or ore piop,, Sio"
IL TO contain from 10 10 W per 'e'i' ne.ahe io
which, In the wasliDc. H. In many uSia VI vu, ~,
below a markc'abic sh!uon u. t'e 49,. ,,T CLAW
ScparutiOa Of the t:c Ia, lOiH Decii prouem Pi1
sentg many .ded difficulties that have never ucch sue
| ccssiulIy overcome. Watcrigs and specific gravity
separatOrs Innumcrabc designs have bean Inventor
for the plrpO,c all tn" world. But Inc very