comparative value of various grog materials for the

59
Scholars' Mine Scholars' Mine Masters Theses Student Theses and Dissertations 1926 Comparative value of various grog materials for the manufacture Comparative value of various grog materials for the manufacture of zinc retorts of zinc retorts Wei-Tung T. Hu Follow this and additional works at: https://scholarsmine.mst.edu/masters_theses Part of the Physical Sciences and Mathematics Commons Department: Department: Recommended Citation Recommended Citation Hu, Wei-Tung T., "Comparative value of various grog materials for the manufacture of zinc retorts" (1926). Masters Theses. 4711. https://scholarsmine.mst.edu/masters_theses/4711 This thesis is brought to you by Scholars' Mine, a service of the Missouri S&T Library and Learning Resources. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected].

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Page 1: Comparative value of various grog materials for the

Scholars' Mine Scholars' Mine

Masters Theses Student Theses and Dissertations

1926

Comparative value of various grog materials for the manufacture Comparative value of various grog materials for the manufacture

of zinc retorts of zinc retorts

Wei-Tung T. Hu

Follow this and additional works at: https://scholarsmine.mst.edu/masters_theses

Part of the Physical Sciences and Mathematics Commons

Department: Department:

Recommended Citation Recommended Citation Hu, Wei-Tung T., "Comparative value of various grog materials for the manufacture of zinc retorts" (1926). Masters Theses. 4711. https://scholarsmine.mst.edu/masters_theses/4711

This thesis is brought to you by Scholars' Mine, a service of the Missouri S&T Library and Learning Resources. This work is protected by U. S. Copyright Law. Unauthorized use including reproduction for redistribution requires the permission of the copyright holder. For more information, please contact [email protected].

Page 2: Comparative value of various grog materials for the

A

!RIBIS.

auiml'teG to th$ 1&·ou1'1 of the

SOHooL 0"' IUDS AltO lfftllLLtlRGY OF TBEUI'IVE.SI!Y 0' lfISBOtBI

:DEiBEl: or

lllSlJlf. 01' fHUElfOIC"

.l. t! oPt ateD.dent ot th. Ad.•alss1ppl,all_, -.••~, Itaiton of the 1.1. 8.

. Iv..u ot lfJ.:no••

Page 3: Comparative value of various grog materials for the

"axl~r1.nt !.. \he 1.t.r:lJnt'.~ of "'f~t."'N'.

~;pjJn!'1,.ent.••••1' a••• :".. !t 113 oUor .,_"...

••rf' .....10 tQ.ti••• 4.fO.'d••$ ltJelt -'.O•.;QllU.

l' .x-,~.,.rel'~ll'"_lob .s,perlit~tJ.' :.NIt,! ~.~h

~\. ,$f~.\ •••w. t ...rl_""171~ 'b.e- .1 r ...

....~ft"Im'li ......Y•••\1.... "",1'8.1 nlal,

tt)'" •.I~""'" 61_ Mn t .......i.la n1""1. rnl.tIi,.

Page 4: Comparative value of various grog materials for the

I

..........•.••.....••.•.•. ,...•...•..•.•.......... _... 37

8-11 lI' •• 40

11 11 ,., •••• _ -.................................. 42

Page 5: Comparative value of various grog materials for the

.tc•• I.

.. II •

Page 6: Comparative value of various grog materials for the

und Ull\$~ .. If ~ ., tI '" it ., ., 'II< lit " • *' • ., • ., " at _. .. 16

:~;~olecu.1~\:t..l" Il';r.Llv.a.lttnts Qt t:.·I'""s,on £1",.i. otlJ.lIOe

~,U:n1t7 III a •••••••••••••••• l'

~...ble II I ..

Molteult.,r Equl"fale!!t I; of Jod,J"lilxtu:r.. en: Jar.1 f

ot U..o~ ... \J1)l't~ .... 11 ,,<1' ......... 'Il"'. it ••••• ,. .......... ., .",. .. &1

II

I.-

.... 111 ...

Page 7: Comparative value of various grog materials for the

fae eraocefu,: of the retorting' operation 1n the EiD91 tlq of

J,1.:C~ ores d.•panda itt. a g:re~.t t ;~asu.re ullon t;:.le durability Q:t:" tnere­

torts" ~he lit. of tbe retorts is i-.portant riot only becausf\t of

th8ir tlrst co sf;, 'b~t &1 $0 beC'::~il:S. of ~~ l1Ul;co);'t~cnt ,.ine loss J due '0

a""lor:p't1on of. sIno 0:1 new retorta" ~r,Jld 'because of' tn6 twenty-four

!IOUr!! of. lest ce.p:.,Q! ty O$tore a new l'~t~rt i~; c.llf:l.:rged.. For th1e rea­

$On. the nece8si ty of a careful Mlect10n of the ra.w me.ieriala tor ~be

rr£1n.ltact't.1re of s1n~ l'stort.ia apparent.

The lIIT1,.1••1pp;1 Vall.. ,BXptu'b\e:nt Statlf..m of the linit_

C,t!\tes ]Jt.tteau 0'1 l~illee. De,partm.:rt ot C.-roe, cooperating wi'h t.h.e

Sohool of lIip~! IJ.JI¥iMetE,llu:rSj" of th. mdverGlt~i of Missouri, haa

be0D. oo:l14.u.o'l_ .. aerie·" of .t"e:tnotor;{ 1nYGH~ti.g.n'loXls in tlJ.e metallUl1l'1

of .1no d:ar1q the past e1sb:'een aon'luh \iilila \W} obJ.Ci; 01 this

ro~n.o*orl.fJ 1uve.tig;:::.tlon 1$ to dev!,!cJ.0p 6 body tor .112.' fttoJt'. or

••a... in ,...tl'Utcl of t.b.elr Eu'u.factlU'e t.hat will n8uJ,t 1- "''tier

re'Ol"t. \AM ~ 0._ mow in .le t t__xperi.-n'tal pro....uN ...nal.,.01 a aerl•••f q8,..tic studt•• of "he "nu"i.u. pl"tlMtrtle. of t:M

raw ma, terlals-bond ola¥$, P'" t ani ltotr .1.t~B. 'M fl"' plII.M

., ihis In•••'{gatlon. tbe ...:iut1e of UlI .plV.ica.1 •• ~t&1

,Properii•• of thel'elraotcu."i&s D..OW UlEed tor ';1'1. Mt~nl\fao, ..1ft .f .i••

retort_, "Ill... a_pl.'$!. ~alsth••ll .,_.:Ph_Xlts ... experi..., •

.and nflU!,. of a pa' of the .oam~.. of tnt 111.•••'lp'"u, WhloA

11M. to'r it. ebJ_" the,'udl of the CQIlj.iara'1". _lu. of ero,pte,..

"ala tor tb.e "",,'llN of .inc ...tort8. on., to 'hi la...1.'.....

"'" 1 ..,

Page 8: Comparative value of various grog materials for the

of datfi, tOQ rJJaliY GQncl,;.u~1ollr: aannot be drawn. Th$ work lle$cribed

.1,);1 this t·.~les1st ]'i')''''Il~H'el''t·.71l1 g,lvo2·oIDe idee rel(;Lti\re to the method

of ta:tt~u:d( U8$1,'L, J.;,'f~ the concU.. tel cm.~; ullcler which Hll the d.ifferent

;;:.hases I)f the :refraoto:r ieE. ~}1"\"[e$t1t;;:·t i r.h) 0:':'0 ~();~dt'toted r:t the

}'~:ii:~sis£lP1i1 valley F.J\'}?eriment ~- tatiOlt of t'ne i.tn1 te"i Bt~tu$ .Bureau of'

The au.t.i1o:t* i s grr~n:tly 1.r.l£!,abted to :;~r. H. ;<:1. LtlW1"'''''', .t,.~lng

~>a'pe::rinteDd$1'lt of the :Jisai•• :tpp:l \,:&.118:1 "Elxp9,rlunt ~1t&tlon of 1M

'Jn1ted.~;;tat$. a~~.f'anu o:f.' 7lil1flUl" lUlde:r wbose s"t,p~n·v1$ion thia work ._

..nled on; to G.. (. .. Bille to~ h.is 1n'8"'" a:a.d advioe, aDd 'to 'he

1'ari ')U:) ,line ~3maltf:tr$ a:neJ" ;roduilers ..*:r.l.('I bay. l1).t~;r••'.d 'thPl••l"'.s

1n 't13e work t1.i.1d who have tu.nU. 8hed.onae at ,be _t«rrials ustd. !ha

.aalbol" 1$ 1nd..~1;ed fiG E. 8. W'.a.eele:r, !:sa1atU,t;lt Mertallur£ist 01 the

l')tate 14iniIllExpen...t '::';~11u.u of tJw SOAool ot 1:\11•• awl .etallurg

iJt t.~.t.t.a.:t.e:r.lty of }fisswrl a:.u4 tvA. H.K"J.eOhler, Jalor »etallur­

gilt. at ill. Ulllt.d sta'es :au:r.;au of Jli:aes, for t4elr ."ptJr..tlont

1;,0 Will:ba.~ X'&blbat~'faand o. W.. lIc.l l.,; OQoperatlYe~.tlJOf the

~;~'a.ta l~inin.mx:p.::rl_ntStation of the ~hool of :~~i..' aDl ...1....

lJ.rg)~ of the Univeraity qf MirUH711ri t(;)'1" the MNf:J.l .... CotI.Pl.'. oua­

1081 E.IU!~.lr!'(n' 'that 'We·!"e l".qulre4_

Page 9: Comparative value of various grog materials for the

117. 1~rtl:;:0at 1:.rra.;;:>'tlo6, :;:;~Luo I'€ft'Jrtf'~u;'e: tru:,de ot a. :.:.llxt':;;.re of

g'rog mat01·1:~.J, alJc.; rlJio'W elL.;;, tile lIlt tel' a.otil«~ a;~ ~!~ bond. Genot'Etll1,

tl:'$ [~rog is oO!Uj?osed o:~' $,.iOh ra,fr&.otor:l p..'e.terials as burned olay •

erus:h~ q.w.artz, q,uartsi.'tB" or fU::',Uo.. It 1s used 1~.iri.i&81~~ to red'J.ne the

pla..ati 01 to' ot tJle body t;:'~ld topra'\fE;nt too much sh.:r.1:n'k:aSe. AS & ~

sult of 'these tnllctioll$ it dnC;B.·e:,·1cei; t,JO t~nl(}Q;;H)~i to formJl"ac~s and

fiseu.res and" if' prl7perly;;:C:J.portlf)!l$rl, en'101.63 ti~e body r;~1%tuJ'. aa

a ,wnol£: to stan:lmore st1.~ah:t. }ltl1:..swi;j ·see. in. improving tJ.e quali­

tie. of linc retorts, thl~t tn. grob ~~~tetlal$ ased ~181 n~ l$'s i~

portnnt .l ps.rt \,llM tb.e bond. olt:.J~-

'I'he aTerqe .iua maeltfl:r acnt&il11S '.from 4'1000 to 5,000 r ....

'tort. and thft reqU:S:rfI.:·n'~ Wil1,ol"1' f:" r~tol"t ~i;c.rt !ullril, ,[~rEl .:xo••4­

1;:0«11 exa.eiint,. '2he re,ort 1$ s.bout eight .inoh.$s in internal dlra_tlr,

ha.uwall.! a'bout one lnoh thio](;. .1. rro::r: :tift:;: to $1xt~t inchelJ 1n

l.~h., and. I. S $UPport.a ouly a.t tatl two (nK!. Be.d.a..1 ita o.

night, 1. t eat":t":l.~HI> a, 1000 at a}HHtt Q:ne hundred pcn:md.a or ~m. o:r.

$.M fuel distI"l biJted unito:rmly 0"il6" lts IfJXl.ith. l,t is Jtea.t.d t·Q

l.:~bO"'ll 14000 c. on tile Gu'telde (oorre.potdinc' to a t••penit.a.n of

12500 to l~OOo C. all tha .1xusl(lel.. ~rhe retorts an 1n conl1J1UU$ \Ul.

and la,' trom th:trty to se.,enty'-li"'e day$t d.:p~:n.':~nc 1'.l,f>en tbelr

q;aall'" kind. of ore ohareed, li.i.nd ~l uMt, aDtl 8;180 o:t tlJ.8tlP_ of

r.'ont'J;nau It fte ret." 2lU:st no' on11 po..... illp. r.,na.tori••••

lIu' 1tal•• u. tor.slnd.formation, :tn.ian, torJlOllon, ltl'l&ld"q)"

~'t tal ,...\1... 01 gaMs and .81'10'" at; 81e.'. '.,_ft'''.,-1-

Page 10: Comparative value of various grog materials for the

A.8 baf ;};r(; $tr..t e.", th-i :':,: rf:r f nt 1rr:v r:2 t't i e::;. t ion. 0 f nh! Oh

~(1.11 th",le oaYers ot11~" ;;:" J;l:l'''t. mlt';,~rt:.akor, to Gtn.Cy the COlttfatatl't't

"liluee c/t variou£: gl'oi: m;;",tel'iSt,l n i'\.;;r the UU:)'lJl,;f~.ctlln of l~l1Q ratOl"ts.

bATing ~10 i t$ 01,;~Jlct to :tiJJJl 'better f·rt.1g l:tltite rl~1 tor t:~iil l,urI'''••

than those eomof...ly in use at the prenel'lt t1rM, lind to dete:ralne the

D(n!t pX'vjlQrlntJ1u: of bOtl.fi cltJ,~;' \~) -.... :ua vii tI.i.. O~ilJ:J klw.t of er'J~ ..

• ')lvl 01.,.

1a o»der te slye & -"'.r •..,arl'Qn of In. prep.ltt.. 01

\lle wui..... erG&' ."1"1&18 a .ta~ ~Q_, 01&7--13'. L.t.d. elq-••

040... tor all t,l'ltt 1'1'01 _ter1al. , III thl. 1 '1,..'1...

91101., ft. oboMD. on aocou.a.' oft' 1"' ,. 1. qi

arOt:md ~i'. I~fItl1. 1n the f:tate ot J.U.$'oUi U4 allO , tt.

"arlo'll' pnpertle$ suitable tQ"t' thi.pVpO........ :pla.'S.elty, cOO4

);h:«1181' ,..er, and 1_ If.lUtinkage 111 th talr11 alp r"'c'ortual.

St. J..ouia elaJ' ._ };teeD. 1.'11 fa1r1:; setlt'ral ue " 'ht-Jetrlt7 of

A.IlIdeaa 'i. -.1,.,.8 •• bond alar f ... -*J' ,_ft.

Page 11: Comparative value of various grog materials for the

1

2

4

1.0

eale~.ned F11!lt clay

Flfty :partaoarborrtadue1 fire.and and ti tty 'pari $ 'braun_!f?$81''IlI, b~r ..1gbt ..

Ra'¥J cyan! t$

,tfty pa:ttft oalo1ne4 flint01*'7' aad t1f'l1 part8 p01ld..r....... tl1~" ~ by _lgh1.

Page 12: Comparative value of various grog materials for the

;:.;.ti.x'¥ i/~ ..rtis of i:rog a:t1d. torty ~,ns

of Don":: Ol~~', b::/ YloiGh~;'; '"

Mixture no. 2 -.b'itty pl~r'$ of srot' and fifty punscrfht·ud o}J",j~t b.. 1ieibht ..

1tlS'V$ !to. Z .. 'onr ,Par'. of irf.i)j; and. slxt~f ~:rt$

of b()nd elF!.3il', b:," ~~.ght.

M1xtUNJrO. 1 .. Fortyptlrts of g1*O~~ and 11.'y pa~.

O"r olaj', by _18nt.

Thirt) p~:rti ot' ti;l""C$ and ....nt:/' l*I"~of cla:r, bJ' wttght ..

~ftll:t~! J!1.t:tte of wogan" .1..':7 P*'-"~

of el$i~. by we1t;ht ..

.. i ..

Page 13: Comparative value of various grog materials for the

'l~b$ j:zy ~iStu.r.8, ...e1gh1:mg forty-fou.r pouu,_ were

1il:1IU·0U61ll;;ll Uiixed iIi a l.<::,ijGrstor~ ,pt.tglSlil1 .~or t;'Wenty ml1lU.tes, sul­

tlo1t'nt M;~tarb.il16 8d.UfHl to mJ.~,t\:e a eutt; plcr-:tie~od.:T··. iHle "tu:-llr

]'~i%t .tI'6 s ';,fJX"f,? lc;ft to ~e~:ii;';'lJ.,ar fro;,;,:;. eig'ht it"; fo'ltrtee:n da;lE. "L&n't1"ler-'

i~' inC.lSa13eE tl.lt4 ,f-lf:tstle:J. ty of' the 1waiJ mixture so n e to facl11tate

the $tQ.ndard. t.:it:!thoda uf ~lt.~ Jlttu;;,"io~;cn ;:~ooiet:>'for.:e.ti:ugYatorbtl.

&llQ. 'ebB .merioo4 Ui;.l"uic ;QCi6t~f.

Ohemtoal Analys.1 e.

~1•• 01 all the Il"ol's a:rl.d 'he Olaf were portions of the

saMple. t*_ 'lor tn.. de1'o~tloXl Y~l1Ut d.t~Niutlon, but r;round in

an ..atemof't8l' to pa.•• $. 100 .Ih. 81..... 1'6'nlt10Jt 10al, a111ca.

alai_, 1r.11 onu, '1'£1818., 11_. IA...,.ln, .041- ox1de, aut!

po\.a.1UX1. oxide were a.'ermined on all ,regea" the .lay a....own

under ex",,'larlMatal n8ul"...

~o••en ~.l••

A 80Jtoen &118.1751$ •• I'W 001 allgro,; .-pl•• u,l.. ';v1tl'

",tand.a,rd 01.8V$8. SaNDle (,Ii' ekaJ.l. FOe. appro:u-.teq 1000 an-a,was uJ:wken in a aes:t uf sifn'•• 0):). a io'k&j,J ..hiM tor f1t,... •••

'\1t.ea y ad tJ.le pQJ'cen:age ot tn.. total ..lp, t1t_1Jti'Q8 OJi -..en-.Mt,....

...T ..

Page 14: Comparative value of various grog materials for the

])etol!"t5.. 'tl0'l'l Vlilue.

~.i.l\\JrG,:ar(j'md the CIHl~n lnlt dld n01~ 00>1 the f~D'nQoe ttpprea1ably.

The rata of.' ntl~tinG e:Phn" 8000C.,t:Dtl appt'Ox1*t~ly ,en

......

Page 15: Comparative value of various grog materials for the

i0+" It ..~~

,,' -_.... .__._-,.._.--->,

,__...._._.__. IJ" ...-------~

Page 16: Comparative value of various grog materials for the

t~~st jli,'3UeS _6 removed. v'.i.til a. cloth a:od the rdaces dr1$d at rOQm

temp$n.ture 1".)1" twenty-fr.Yi 't1' t;i) t i11 rt:v-·~dx the::.::~ tf.t ,;,+0 to

l ·..~o .".... ",,,,

.. ql1nc1er a.lso :wad. orateei. 11'0 prtlv.:ut lea!Ue'6$ of .::aerQuu;·~~ bet._

ti1.eS& tQ part.... rl.1.ber rinfj;' 1a att$ohed 1.0 the 10W$l'" ."od of the

pl.,oll.. 1". a.M pl'GvidM. on t.he ald. of ,. pi.ton.. 'lib.1ob. fit laio

groo.·., ou.' in th4Jwalls of tne qltnde:r. 1111<.1 lMk tn. oylinder and

pi.ton toget.b.Etr. In a hole drilled. ·tuou,Jh. the leli6"th ot' the pieton

a. bUJ.tte·~a.s 'iiealed. !.b.e burette. f;:r'ad:uai-ri to 0.1 8Wiio centi­

metal', proJeot. aluJ•• the l'.\l)le ot , ... OJli.-r for about ~_..i7...three

inches. A braes ell,ge' part! l?11y sur:rte!JJl.d$ the ...tlonof t.be 'ou.rt\'e,

the 1,18'on 1. cone-sMf·$d to t:L'\fold tt'upp1%)£ ~:1r bulibl.'h·

t~.t.L.n operat1:ng the vol'Wneter, '.\'.l:'Gffieleht t!!ftre'l~" mQll· I·,ourt"

1.1;01lhe 0)"11lt4"rto obta.tl'l. .i.n!'la:l 1'"eMltl8 .n'bI ......Ita ...... ,_

pl.,o» •• 'H..... iGWn ILlI4 10'*. 1. 1*-&t1",n ":a tu .11....... a.e

- 10 ..

Page 17: Comparative value of various grog materials for the

::Itp" 2 •

........ :&NUJ7' V.l......

.. 11 ..

Page 18: Comparative value of various grog materials for the
Page 19: Comparative value of various grog materials for the

I

't$sti!lee"e r af"t,~l" 1)1;) 1'1;;.: to,"~:.ed :;. n :\;..ilJ;"OS$l;J1 £01" twelTE; il:;ru:rs were ,ti;lt

rate W~:Ui: ;;~l)prox1m;;lt.l~ ·ti fti Q.(iJt"retilS O• .u.t1gl'.v.d• .tier lloar, X.$\ pieoes

~i$re :a.e..1;Qu 1,;;, 80Q) C•• 1000° C... 1100° C., 12tOOr.) G.... l~Jt) Q_. Qd

l4QO° c.

.. 11.

Page 20: Comparative value of various grog materials for the
Page 21: Comparative value of various grog materials for the

!('che tElt';,t 'pleoe~ were 10l'lL19d in s sieel J.nt)ld one inch. by on$

inoh 1ll C'.raS2 seeti.oa. tLUa. 801'"011 inOMa 11:1 letlg'th. ~he wet pieces

'I'vere ari$d. by t110 1i.i~~ndard. !oothuc1 describelJ b&f"cre, OUN being tuen

to Jt$$V i.o.fit 4ir1ing un1t-orm iIi lil.t ~",rl:.' at.f.168U b)' ti.4;rnin~: en ,...1"'.

fl:JUl"~,. T'went:y te:;:t pi9ce~ 'wen tru::,d.o fr'.l'n fJt10h ea:t'lj,ile, fiT 11 '-1n£';

-tired a~ 8000 0'.. J.uOOo 0,.. l;:~o·iJ C., a,ud. 14000 C~ T1le i"il'&d tEuri

;leoe' \'liar., ft)l'UA.l;;4... iJU line .i..~!'t$ai:,r";l:.u::lY-i)..t:l:li~ t)\l"(;;'l~liJ.l. ~$ath.AI !Qtl;ohine

S.l:lUlltA in j;l'it\\'u:. 41:. :£f.H~ K'.!J.iie eU.i$il or IJllti ...fQ'o1r"tn. 1ncl:.I. ra4iu.a _re

B$' tlv~ iuoU$. ,.;~ti";;:,;4,ct;. s.'h(j &no;; ~iI red a.c.:proxilli:a.tely at tl~ rate ot

twel1'e poUJl4$ Ger l'Ylinuliel. :t'be ~rl()d\ll'tUl of .r.1,.l~tilr8 was oaleulat.4 rrom

data 10 ootainaa,.,

oa 'w tol1ft1rC J*Ce. 11111 .. 10_ the ia'tnl1at.ea. nault. ot

the Ie.,..... 0». I.M ...,,1-'1"I.il.1 ,",.a. \04)1 a1d1U'1tl .. locnhel' ",ith

Q. t'u.I'f'.' plo,'" '_hfrOlUt

Page 22: Comparative value of various grog materials for the
Page 23: Comparative value of various grog materials for the

GftS 1 I I 4 IS 6 '1 8 , 10 Olq..

SSOa 1'.14 47.'1 62.&6 ,.,. 52.sa .9.16 "'.40 fl.ao 24.86 9.80 &5.4.

!lao. 14.11 .'.11 12.1(. 88.1' 1&.40 44.11 "." 28.'. 69.10 1$." 2$.'3

1....'10.Ito•• .a4- .1$ .11 .12 .11 .41 ,,06 .11 .1' .10 10.-61

,.0 a.11 1.04 1.21 1.'" 1." 2.41 2.4. .61 1." 1.44 1.","0. 2•.10 1.1' 1.1i 1.'. I.'. a•.,o 2~'O .6' 1.60 1.60 1.1'

flO. 1.8' 2.44 1.8' 1.10 .'. I •.., a.6' l.d 1.10 1.60 1."JiIG .a fn.o. .11 !NO• .11 ,,..... !:raoe f ... !ftU ,.... .11

oao .1' .4.' •1' tao. •aa .11 .18 .2• fr..,_ traM .,.1fUO .11 .1. .00 .10 .00 .00 .00 .06 .10 fra" .1'De .&4 .11 •• .'2 .00 .00 .00 .15 .11 ... .1'SIC .00 .00 .00 0001 4&." .00 ~OQ .00 .00 .00

me 0 .00 .00 .00 .4-8 .00 .00 .00 .00 .00.00

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0..)

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Page 24: Comparative value of various grog materials for the

alMOl.n1af'lI,ll1.aleftta of Grop on Baal. CIt A.la.2!.1tr.rll11*

411'."-1'

H 0 1 • • ~ 1 arE q • 1 ~ a 1 • at $.

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1.00 1.941 .0941 .om .Oa1 .04.i .00& .008 ..OQO .00()

1.00 1.'00 ..Oil .0&6 .000 .011 .005 .00' .- .000

1.00 1.180 .01' .0'' .018 ..032 .000 .01. .000 .000

1.00 .19' .OID .OIK .000 .000 .001 .oot .OGO .000

1.00 ..... .110 •Ofl .01' .011 .000 .000 '1.110 ....1.00 1.1" .Of. •0'• •000 .01• ..000 .000 .000 .001

1.00; 1.... ..07' .0". .000 .011 .000 .000 .000 .000~,..

1.00 1.1" .80& .06' .000 .01a .OM .00' .000 •toe

1.00 ••11 .OR .060 .000 .000 .001 .01. .000 .000

1•• ..1" .OM •OIlS ..000 .000 .000 .006 .000 .000

.. 1t ..

Page 25: Comparative value of various grog materials for the

Gr.N_bar 41.0. 810a

11 4. 'U 1 Y a 1. • J1 t .*

! ~"1 .'1'1' ~OlU OOסס.'080. .0060 .0011 .00. ooסס.0000.

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.. .81''1

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10

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.81,a .101 .0100 .~. .1000 ooסס. ooסס·. •GOt, ooסס. ooסס.

Page 26: Comparative value of various grog materials for the
Page 27: Comparative value of various grog materials for the
Page 28: Comparative value of various grog materials for the

"'7~...

1

fabl. III.

60 4.11 .,." 11.'" 2.'8 2 ..1. 1." .11 .11 .ao .1150' 5..".811.41 a.M 2.111.11 .81.10 .81 .1040 6.11 16.'1 10... 2••11.08 1.U .,. ••• .. .11 .10

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19.'6 10.191.69 1.11 1." .64 .al .11.60It.06 ••M 1.'6 1.19 1.'1 .66 .24. .11.1118.1410.18 ),.15 1." 1.81 .6' .28 lilT ••

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at." •.04- 2.1' ••11&.11.11 .1" .1' .1011.61 AM a.1ft 1.111.02 ....16 -.It ,,11M,.III1.. a".M 1.9••0' .18 .1' .1.11.01 11.15 8.'1 1.11 2.13 .16 .1' .1' .1018.'1 II.'" a.H•••11 2.01 _61 .16 .10, .1151••• '11.14 2.1' 2.06-1.'5 .66 .11 .11'.1.

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.It..14.1'

Page 29: Comparative value of various grog materials for the

Per ..,~ Qrog oa­

I __I" ".at t )al-ane. tiD

Jlol •• 1l1aJ' E t u 1 • a 1 •• t I.

1&

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l.a'80 .0"1 .0'11 .0181.0.", .0061 .0141.0000 .ooot1.2800 .0'".0''' .0101 .0195 .0010 .01l'.ONG .0000=.1105 .fft'l'.OftI .01" .040' .0092' .0111.0f00 .0000

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Page 30: Comparative value of various grog materials for the

t0a0 We-,QO l:aO

i?a1i" .en"104 IGrog .... t-__..,.-_ll_•....,_1_. ."'T"u_l_a~r__1I"'""_q_ll__1"1"'"'.,.__&_1-r._._._t~.'-"-.-.,.---f

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Page 32: Comparative value of various grog materials for the

r..... ,.al,.. ~l,.i' of .......

Page 33: Comparative value of various grog materials for the
Page 34: Comparative value of various grog materials for the

4

I

!able VI.

1~~ I J 0 d 7 n!. t u r • •

L.j P."",',:' ii" '.~,wat.:t, ot~ Per!&!:,'1l1t Dryll11.-1_,__ ..tU$tl.1tL-' •' ',' .~~_le;r-._.-....{.

1 U.161 1~.03117'331 a,z~l 9.8~ 12.10

J 11.141 lit62tll.04.b.. eOJ 7.79 '/..47t , ", .

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11.1'1i 1&.60 11.iS 8.61 f 11."1611.76

12.29 1.••"'14.9.1 '1.88 10.33 11.18

, 1'.11 14.64 1&.12 11.9. 11.98 11.7.,7 li.6!i 11.7i 16 ..." lJ.40 li,.2J 13.iU

a l.J.a~ 13.01 1'.1216.'#0 9.a. 11.2a

9 14.1'8 16.91 16.a' '1 • .10 i.84- 10.'"10 11.1' 11.54 11." '.11 •.0' 11.11

.ar'&t00lwNul 11'14108\t. wll'-'er ot plaeile1', aad

4::11_ ~ll;riJi!tf18. Q)."{:' fnm~ teft to 1"latt1 in t~ 0.,.or of Aeoreaslns groi Qout.nt.

... 21-

Page 35: Comparative value of various grog materials for the

ftP" ,-

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Page 36: Comparative value of various grog materials for the
Page 37: Comparative value of various grog materials for the

1

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60 28. fS.4. 28.3' 88." aa.15 11.9' 23.1'10 2SJ." 19. ISO 11.60 .'.43 M.I' 11."4-0 2&.19 3~'.76 28.22 a6.92 23 ..'. 10.42

60 14.• 48 14.88 14.13 11.8' ao.a1 20.0010 14.91 11.09 21.9' II•• a1 .... 11."40 15.62 26.14 .24.09 22.10 21.46 19.0'

60 26.65 :&6.60 20.11 25.61 1 14.49 19.MJO J6.ii a'.l' 26.16 85.44r

126.11 21.1'

40 37.1. 27.68 26.81$ 2S.99 21.1':1 19.1.0

eo 31.18 12.16 12.1.7 31.68 act.04 SO.OI10 11.01 .1.99 11.41 10 ..16 at.to 27."4() 80.54 81.14 19.4J) 10.05 26.40 If..II

60 24.6~ 21.26 26.08 2....0 23.1' 21."10 11.40 86.01 25.10 a...Of 11.11 al."40 26.91 2'.43 25.79 24.64 al.J' 21...

••24- '."40 ~'6 .. 80 27.S0 26.26 26 ..01 82.1010 .6.96 .'.4. 86.10 1M.'1 .... 29.'.20 27.41 27.&5 D.54 U.Sg 11..01 25.81

40 2'.64 28.61 ~;a .09 ~1.lm

I21.09 18.19

10 17.•" !S.4' 26.11 2i.d .,.4,4 24."20 27.73- 28.36 25.40 2Z.i5 21.50 21.j,

60 ;::3.94- 14.38 25 ..66 21,86 IA.I' 11.'.80 a,.ll 11.10 24.10 11.41 11.0. 11."40 25• .:14 16.05 24.44 25." 21.86 20.11

I60 2,'.1.00' 29.88 I 29.15 28.97 21.12 21),8110 29.09 29 ...87 28." .11.91 .6.,11 llhA40 29.12 r~9.6"" I 28 ..14 2".88 Ith04- 24.1,6,60 11.76 52.'10 32.1' 11.41 10." 10.11.. 10•• 11.14 10." .,.., 1'..11 18.104,0 30.6' 11.14. 1:9.91 a8.,' : .,.,. M.'t

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Page 38: Comparative value of various grog materials for the

%11 ,_ mUIMrl cl..e:n to:rtbe bOClJ s1~. 1. rip.....,

9 btl 10 the first number iXldlcat•• the I"'O{f ad. tM

Moom the ~og GO""••'. :rfQmb.r 1 il:l4ica"•• 111p. Bl'tth

NUtlbe::t- 2, _Alum grog; aB4 lha'Nr 3 low grog, Uat la,

J:lUmber 8 - 1 deno'•• 'hi ..047 _1st•• JI.&1& tro. Gr.

:10. $ with a. hia» POC .oat.at (.txt, per 0.\ bJ ....1all')

an4 "''be1'' 8 .. 2 1. of .41_ srog .0nt,1'1'.

Page 39: Comparative value of various grog materials for the
Page 40: Comparative value of various grog materials for the
Page 41: Comparative value of various grog materials for the

:percent8g$ ofIf''''.r Grog ....

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60 12.0& 12.11 11.10 11.02 '.10 '.1060 12.22 12.$4 11.70 11,11

I

10.14 t.l.40 12.all 11." ll.'~ 10.TO 10.&0 8.11

60 11.85 11.. 11.6i 11.101

11.60 9.6050 13.84 14..11 13.46 1~h9a 12.'1 10••

14.10 14.'1 11.57 lahU 11.66 ••11

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to 11." 12.0' 11.'. 11.16 10_" 10.'"50 12.&8 12.18 12.0$ 11.4.1 10." 10.11

II•• 11.50 1'.11 11." 11.00 10."

40 11.10 11." 11.04 11.1t 11.11 1'.lI30 12.19 la.17 12.31 11.,- 11." 11.'"20 11.1' 115.4,' 11.16 11.10 18•., 11.01

40 13." 11." 1'." 11.11 11.11 1'.'130 13.83 14.10 12.94 12.13 I 11.61 11."10

I1".00 14.0' 12.a1 11.12 10. 11 10.10

10 11." 11.ta 11." 11.06 11.06 I 10."50 12 ..41 12..&4. 11.06 11,~1 10.,a 10.1140 l 12.1' 18.02 12.00 11.3Z 10.52

t••g,

60 14.25 14.4' 14..01 1!.8J5 1!.60 11.14bO 14.22 14.C6 13.96 13.,n 12.16 11.'6to lola'" 14.'" 11.10 18.64 U.tl 11.61

60 1"'.90 16.12 14.98 14.43 14...11 1:5.63tio 14.08 1.4..M 14.01 13.51 13..46 lS.1 '140 14.'96 15.15 14.10 13.70 12.'itZ 11.50

... 10-

Page 42: Comparative value of various grog materials for the

JrlpM ,.

Alleuptl0It of~ .tu....

.... 11 ...

Page 43: Comparative value of various grog materials for the
Page 44: Comparative value of various grog materials for the

1

I

6

,

•t

10

ft

1I

10 .06 ..'e ." 1••1 a•• 6•."so .o, 1 ... 41 2.04 !.ta 6.01 8.8640 .0' 1.81 ,2.•" 4.61 '.69 11.21

60 .00 1.32 1.62 1.11 4.11 6 ..0210 .31 2.06 2.29 1.0 .....t '.0240 .:59 2.28 3.64 4.K 6.lt '.'560 .01 1.2.' .91 1.H 1.18 1.1450 .00 1.U 1."9 2.41 1.1. e.8540

I.06 1." 2.4a 3.20 4.1& 6.f6

60 .0' .61 ." 1.18 1.... .e110 .14 1.04 1.16 1.28 I.a, 1.1'4O .u 2.11 1.10 4.40 i.(U" 6."60 .00 .60 .00 .61 .86 .to10 .20 .\l5 1.18 a.oo 2.15 .".0 .00 1.12 2..1' 3.26 1.'0 1.90

40 ...00 ••a 1.89 2." 1.11 .0010 .00 1.60 '.86 4.04 1.11 .0010 ,.00 ;;:-,., 4._43 I 6.04 6.64 .00

40 .•00 .11 .15 .64 .'2 .0010 .00 1.54 3.10 4.. 65 4.10 1..'210 .10 2.$5 $.3:: ,..~, '.'3 5••e

60 .00 .00 •SIS .89 .•54: .0010 .00 ,.4' .&~ 1.01 1.80 .M40 1.2.6 1.14, 2 .. 60 1.1' 4.8. 4.01

&0 .i.'IO .60 .83 1..41 I.Of &.1010 ••• 1.!1 1.59 2.11 ••11 4.014D ... 1,.66 a.24- l.i6 4..14 4.61

40 .06 .8? ..80 1.0'1 1.11 1.02

• .•00 ." .M 1.., 1.66 ."410 _a1 a.o. 1.0 ,.., 1 ..68 I.4Ift

Page 45: Comparative value of various grog materials for the

'ig'"tre 10..

'ol~ 0bNce ot ;aNN .tat....

Page 46: Comparative value of various grog materials for the
Page 47: Comparative value of various grog materials for the

'able x.

Nt6ul"u.• et Rupture ot B~' M1x\Uft. at

100° 0., 10000 0., 11000 O. e,nd 1400°0.

I P.r oec' of' i Mo4lil'U8 01' .J!tltt"e~I

1fUaHr GrOC oont..t If ' ltft.1nn. o.:!.~" 8000 cfloono Oilt.OOO 0:14.00° of

rt. I

60 429 ~ BtQ I 714 I11561 10 dl l 696 1014 1.'

I 40 468 '09 I 1162' l~OI Ij I

If to Q6 46e f 651 '11 !I a

1DO M6

1871

t67i

tDOL

tfrO SOl fit 6'8 100'1

i 60 349 f 456 i age • 13" I1• 50 382

16" I 959 • ll~l

40 616 66. t. IlM8

GO 6~2 11.29 I1600 15'£ I" j 10',: 61? I H&6 1620 I 16al t

f

I 4G 616f

1011 I1711I

lil760 368 485 '49 1~4,6• II 10 4fl1 l 686 f 810 1541

I 40 46"1 I H~ I aao 139't

4C 4rtD f till 11" f 889, i :ro 4'15 I 4V'T i 1216 ; 941It 1:0 461) ! 597 I 1334 I 1190.f,

I 4,0 416 511 911 '68, 30 600 Q8 1092 107020 628 '1a1 1301 1500

iO •• 3ft ,. 618

• 50 40'1 4,YO eoa '"~40 509 ue il6 t 1105

&0 MO 5e4 729 886

• 10 "''1 iI' 8" 100140 l1l8 181 113 986

ItO 50? .2 lIS' 1MO10 10 665 1001 1,a7 li'l

to ", fl. 1'" 104M

Page 48: Comparative value of various grog materials for the

If'1... 11.

»o4'a1.1I• ., ..,.. ot iolJ ..,........

Page 49: Comparative value of various grog materials for the
Page 50: Comparative value of various grog materials for the

:fi... U-A.

M04\llu .~ b".. of ...,. 11btIrn1.

Page 51: Comparative value of various grog materials for the
Page 52: Comparative value of various grog materials for the
Page 53: Comparative value of various grog materials for the
Page 54: Comparative value of various grog materials for the

!.be allUd_ ttl" UaM 1ft ootaWq the 4810,.,1. "al••

of ~ _ ..Iou.e .r.__11 no' ata.n4& , •••t,.Uft abov. (Jon. 8th 'or

\hi , .....to-.\10•••1•• 01 Groet 'No. " and N"<h 10, which

_ ...,..,. ,,1..,•• we,.e DO" d."~'" •.:I....tl,- On Grog No. I,_lob. ._ .. m1.... ot .._1 ..lib" 01 OaF~O~'Wln,.e .... D.D4

...... .....r.. , th$ "'oration V..1M wall lao\ '.'eNiHt.the ,.,....'1011 ••1._ of' the " ..rIh• ..,_S nqe4 bol..

0-. It ,. COM ., UUl ll,P {'....lel). WI" \he ,tin .t G.. 10.

6. 'Whioh ••'.1M6 Sla... ,.,••'luft1... af U. 0'" 11

.1fpearei \.., '''.IN_'ll "laW 'tJ tAft n.o. ~ta\, _ 1 ne17

"1&t.u,io tJUt 510. oont.nt (iiM Table '1 and i"!i.-U:M is).

~.. .i.ing of the 4ttt.rent grQ~15 tha.t WfJ'N orutWt4, '" 0

.... , ••lth 1. t'tl1'. unltoru. ('1:).$ Flgu.re 6). G,rQs* Ho. 6 $oDd 'Ieh ,-

., S ,,_ atbt.1¥ OIUl1wcl oor.di'lo1h (Jro, 10.8 1'Il0'"

'al'" fl,t, JMtr .., 1*~ tlln'.

Be>q !U.•\u:NtJ.

!be _te.t of 1)las'101t;; !A%1d the 4J'7iuf; JhrlrJkaCe "..na....

ia .-.ral a. the i~ oontnt inG't'$.tu,.d. An 8.v&:r&ge ••, ••, of

Inn-a PI' ••, -~.r R$ requ.ired torot!C tl.SO t1: pl••tle .l~

to~ ,. 1&1'-' &"8 llod,J ~J::d;·u.:r.... 14.5 pe~ cent tel' tM -.s. tVO'

..,. au'..... &'Il4 tltt••n p.'" O.l1t for .. 1.. 1"1 ....., ala- -.

, .. 071.. -fJlUBe of t1:l.8 '041 Illsi••' a....... a1. PU' , Wi.

Page 55: Comparative value of various grog materials for the

111.. IftI" , •• pel" OI».t_'h IMtH.l.. IftI aa( _1•••11 per cot ""h

low &J*OC. 1- '.-,.la'l.lI"88 .... from GJ'Oj;' No. , aDd No. 10, tM

i"" 'With 11 M41a ilt"OtJ ooa'••' __ low:r lli 'bo,a 121 _tel' 'f pl.....

'".1'~ ud 1a dJ71D1 ,uln~J t:bal1 tll6 bodie. with hl~r or lower

P'OC •••, ••, (,lgtU"e ').t_ Wl18M el~ OJ' ehrlaUp of tbe \8.t pi.oa. tina to

100° o 1••• , .. (hi per ..nt (r1~ 10. !he .,.lQ• • t

1M , ••, '1 ft..JIfId;. t. nt..... 'elapeftiun.l......ed. with Ul 1..

.... 1 , 4 In grog OOl'lt.Dt. !hi' hla'S...-

Illl» 1•••, the .-.t .f ria'1. in __ YOl ••

41tt_" aU. tM 1 1Jo4l.b' &1.. 111'... ...,..t .1M 1_ aal ."'"*",,1• • t '" tt_ t ••, 's .

"lit ,... , ...a. (Ileun.... t). fa. ,.n,i\7 .at u'••rp­

_1...t •• , ••, pl.... firM. '0 800° o.......... altola' ••n'l-.....

ao'b. 'b.e lJVl"o.l" aud to.l a'bIOl",Pt ion 1:acreaaettfo't: "" '.a' 'p1.a..

fir«t to 10000 c. ud 'Cbel '.oroa* below ~heir rospee'iTe va.lue!!

., 100·°0. tor tbtJ· '.st pittoeD tl.. at '.mt~mt·u.re. 200". 100C'O:,.

PfJi flU"".' aDd q :.lXtVGrM nlatlon ~et'VH.!'i!t1 t~ ';li,;,SlrjJ'lon ~ W

eN, OQ»_t. ,. Oo:u."ora1oa 0:£ ~_:1io toIl\ll111.. ~t ."0.$ 14aOO"0.1

.: t

.... 00:.'*1.'" .xpu.'l~n 1s 01-r1l ... JJa ,_"al', u-

.....tl. nrtel t. ,_ Hil•• Ut WhiP •• tJM.l, pol-

... 'ZS ..

Page 56: Comparative value of various grog materials for the

1M aOtlalua ofro,p'unQ'l the body mistures "a1'1t4 'be­

......,hel' wi... llalta. '01' most bot, mixt.urel 'the mod'Qll1' of

hPW" _lOa 't) be d.lrectly rel~ted to tJle tetaptTtDtu:re and 1.....r$e­

11 ftla'ed to the gros Of)n'teIl:~. Bodl mixture l:ro~ 5 :rea-ohM 1"

_xl..- 'f'i.tlue tor nM4bem g:rog 10,flt611' tired. '0 1400°0., 10. 6, low

Il'tlS OOl1teD'. a' 12000

C•• No. 10, medium f.-roe: oontent. lit 12000 a.,

and 7~(h 4, low gx-og Of'))t.t••t ...., 1200°0. There ~,re no _rkd 41f'..t.n... in U. Tal'll.. o'f the M04U1ll8 of ;¥tUJ?'htre of the bOClJ mlx­

t1lfta tlN4 at 8008 C. and tho.. tln4 a' 1000$ e.

Page 57: Comparative value of various grog materials for the

!be ObJ..' of' \hi. part of tbe 1nYf.u"iptlol$. ._ a -t.tall

ot \he plv'.loalpropenl•• ud nle eom.i.a:r:oat1'YG Talu.e$ of the '1 t­

r."..1,1' ,:j:r/)f; .'.r5,fll19 anti t:h~ D~Opo:r'lon~ ":1.4,.02\ ~i~ht ;-1"o""Q !:1O~;t

1Jll\,tl\lJletn the bod:: m'-nll~ t -~1'f the$X;iOr!mtt'l1tEi>l ,?1!'OfHlfitb'Lnl hal:';

1l*>i; Mft o~l.'ed. .ott"WF:\•. t 1", l1l3dQ t'.l- g1Tf!9 .a~'· c,ef1111t. coa­

e]:d1,." •• ,\) ,:tut relnt!'lff8Yl11 ':toe of th~ Tt'l.~·s.Q\:1. grOis !'udlo,j,..

l' 1$ JIIe' o~, flt ,1$00, llow",er. to trl~u1t1tla n tl!W J?0:1nt, *1.h aft

fal:.1,. _11 MOwn trc!!t the rern.tlt. th1'..t1 tn.,. o'b'ta1:ne4t

1. lor the arOC. .''''ltd t y alatan of equal

-iSh'$. of Ollq' - .. 81' '0 ....ore .'1.·tBotoJ7 ,.. a hOllJ Cltt ~'lMu' pr&ponloae ot

-lAIr .. _. 9Mb.. 1to~ hal a ts.lrlJ b.S.8I1

MdUlu ot t'tlP''ttN, low per"Jltnge of .Wl' of

pla.' \01,).•b~ d~1in,:, $.hrl:riJtil.(se. hd ()01n~:,::.r&1

-r...tH·t....b:ly 1~il t.h tj\~ ">0(1_$ il.ll:ld,e+;l't)r.'l ·)tt;,;;;~r !~r{};Jor­

tifJllS ot" el'~;l aud. t<1"1)ft 1:n ab'J\J1"ptlo"l, ~A):,r:Hii t:! ~.tl(1

"ol~,~$ ~;1\arA(;;'.

dQaut:t't.~l j~G'.i" 'Uh'J t\!J gi:O~; 1n :&;}.:40 j;'f)\;orttri.

3_ t»loinot:, t. ,;.lJw.;'t~ O~l\4~: r:.o.l~~b::.elJi:,.en t)~ur. are ·1OOi

gl'og_teritr.l15' t"t'U~tl tAe aaulpea, of ,wl'7 ..

ot coct.

Page 58: Comparative value of various grog materials for the

t. Iu ••e fIIanl'", ft,.11 1;;> lMt 11.•• a•• "'08 .,."Ul_

l' IlloQld 'It. O80101n84 allW'Yt 1400° C. to 11ft.·.'

, .. tomplet. alt.ration \0 mull1 te 4tt4 tAUI ..yold

$Ae pO.,i81. lha"ter1:ng of the _n 'ttl expaaelBIl

on 1'1'1113;8*

Page 59: Comparative value of various grog materials for the

' ••'In. !;.ona.n.S.,r~ ~'tbllu~ of 1;146 CO_Qll tLot~.. l4t. $&n i·r*-l1­.1'00 &0,4 ,'>onclo1'J" 1911. ~,~Q:t\:tao'ar8 01 retons aad eoMn...r.,116. .t,,~.r/O_

.va•. jt. ~.f 1{.i~Q'u:r1Qa iWd I\n~u.a. lJ&'t' YOlk-:':" 1911:'. Z5,11f: CJ.I­"111~ .....11, .!:lp .. 2$'.'4&•

.."...., H. 0 •• ~".11~ of ,;l;o.e aa4 cadlllb, :~OGraw-i1111 :Sook Cr) ••:f•• '.rk. l~d. lte'UI"'~ anti. ~j1id«lW..r •• 91-. l.31-~3.

1~1..\;i'.1 '.1" ~Xit\JU. :eile ~tthllu.ri'1 at ~ inc tlil~, cau~~luuj. 1,:OG1'UW-Jl111 ... Co•• :'. YOR" 190'_ Ex..l •• fro. p,...",••_. ,p,_ ' 16.

&un., Alfreda., rhe 1h-.m18t'l'1 ad. piq.l0. of clql a.n4 o\be.r ..• 10 _"e.r1a18.. 11. lQJl ~No$tran4 00., lift York. 1924.

ami'n·s ~·~rn••' J. •• '!be Il1no 1_11.'1;l7'. ·,..,~~;tu,. G;Cltfhl .md 00-. r.ou....1916.

'llk_, O.;P •• :'alJnertotl _tae r.t.nLCton.4.1'raX).r.", AI~,t[, Yol. LVII,PJh 868-.a,.

~~t()net Gil> C*' .aet.ra.'.r1•• tor .lac ••1\111&, ,All!.. Cera:•• ;;«>•• .10111". t

Vel. 6. 1'••• '" H. ii7....01•

•••2'•••11", 0"0, fJu;PJ'I,paX'::v.ti;y;., ';) •..,"' Jll,ore'ti.Jrtf;' ~l.1~d '\'belr It.c.tl~Jn

1- ibefln* z.1'Mllr1t" tu.r ,~\Q8e..ui'. (heml.. , ;,2lirlh 12. 1903.vi- 1''''111.

J:W~l'_\\'G:r. o't'J,'tbe prCi;r$8$1Yii;.dl:"f!1:n.1t'<u1~!J;of' tL,e .f,1••'1'ltj of.11.7 wi,n ohmlO\tefW.ll44 ;&.l',o1u"lt' fur' .!,ut'S$-'IUid\. abed_, Vol.

XVl.1i·::;.4.C • .ii;~'V. 11, 1~'.:2.

- 4~ ....