m m i%
ining Magazine
INDEX TO VOLUME X L I X .- J U L Y TO DEC
P A G E A erial S u r v e y i n g ... 1 30, 195, 2 25, 318 A frican and E u ro p ea n In v e s tm e n t C o... 104, 126, 134, 262
A ir C o m p r e s s in g ... 61
A k im (1928), L t d ... 327
A la b a m a : Iro n Ore in the R ed M o u n ta in F o rm a tio n ... 381
A la sk a : S u rv e y s o f the A n th racite R id g e D is tr ic t ... 319
A la sk a M in e, C. P . M cMillin on M illing M ethod s and C osts at 25 9 , 318 A llu v ia l.— D e p o s its in D e se r ts (S. T resk in sk y ), 2 1 9 ; Gold (H . L . H o llo w a y )... 159
A lu m in a , P r o d u c tio n of— P a t e n t ... 254
A lu m in iu m In d u str y , S c o ttis h (B o ex )— D ig e s t ... 4 7 , 124, 185 A m a lg a m a ted Z in c (D e B a v a y ’s) ... 259
A m a lg a m a tio n (H a lcom b e)— D ig e s t ... 314
A m arilla G old M ines ... 2 6 4 A m erican D e b t ... 2
A m erican S m e ltin g and R efin in g C o ... 7, 286 A m p a t T in D r e d g i n g ... 3 20, 328 A n ero id M easu rem ents in G eological R eco n n a issa n ce (B o w m a n )— D i g e s t ... 114
A n g lo A m erican C o rp o ra tio n ... 6, 104 A n g lo -B u rm a T i n ... 383
A n glo-E u rop ean M in ing C orporation ... 384
A n g lo -H u ro n ia n , L t d ... 2 64, 356 A n g lo -N ew fo u n d la n d D e v e lo p m e n t Co... 8
A n glo-O rien tal M in ing Corporation A n glo-P ersian O il . A n glo -T ra n sv a a l C on solidated In v e stm e n t ( A n glo -T ra n sv a a l E x p lo r a tio n . A n g o la D ia m o n d A n tim o n y D e p o s its , B u rgen land A rab ian D e v e lo p m e n t S y n d ic a te . A ra m a y o M ines A rcad ia G old M ines A risto n G old M ines A rm stro n g W h itw o r th .— D ie sel-E lec tr ic L a c k - h am m er ... .. A s b e s to s.—in A u stra lia , 3 1 8 ; C hrysotile in U .S .S .R ., 1 9 1 ; M illing, 3 1 8 ; M in ing in R u ssia , 2 5 4 ; T rea tm en t (R u K ey ser)— D i g e s t ... 56
A sh a n ti G oldfields Corporation ... 263, 327 A sh a n ti-O b u a si R eefs, L t d ... 135
A shcroft, E . A ., on Ch lorine S m eltin g , 3 2 4 an d D ig e s t 371 A sh ley G old M ines ... 1 0 1 , 1 6 4 ,2 3 0 , 2 9 4 A ssa yin g , Textbook o f F ire (B ugbee)— R ev iew . . . . ' ... 2 8 6 A sso cia ted G old M ines o f W . A u stralia ... 382
A sso cia ted N o rthern B lo ck s ... 1 3 5 ,1 9 9 , 327 A tla s D ie sel A ir -C o m p r esso r ... 170
A uriferous L an ds (Gold Coast) ... 192 " A u stral D e v e lo p m e n t ... 130, 195, 263 A u stralia, D e v e lo p m e n t o f N o rthern ... 66
A u stralian M ining T r u s t ... 225
A y e r H ita m T in D red g in g ... 3 2 8 B .A .N .Z . M in e s ... 256
B.C. N ic k e l M ines ... 2 28, 355 B .R .X ., L td ... 167, 290, 354 B all-M ill F eed , D r y in g o f— P a te n ts ( 2 ) ... 254
B a lia B a lia P ea k ... 226
Ban grin T in ... 64
B a rk erville, P la c er a n d V e in Gold D e p o sits o f ... 62
B arrier S o u th ... 71
B a r r y -H o llin g e r ... 38, 101, 2 29, 2 93, 3 5 7 B a ta n g P a d a n g ... 3 2 8 B a tu C a v e s ... 3 2 8 B ea rd m ore G old M ines ... 294
B ea v er S ilv er M ine ... 168, 355 B eiliss and M orcom H o se C o u p lin g ... 233
B era lt T in and W o l f r a m ... 136
B eringer, B .— M ine E fficien cy and th e Q u o ta S y s t e m ... 145
B ern heim G old M in ing Co. , B ery lliu m M etallu rgy— P a t e n t B ib ia n i (1927), L td . B id g oo d M ines. B illito n J o in t M ining Co. B irb ir M in es ... B is ic h iT in ... B ism u th in B o l i v i a ... 191
B la ck w a ter M in e s ... 8
B la s tin g .— L arge-Scale, U n dergroun d , 3 1 8 ; w ith L iqu id O xygen ^ (M otter)— D ig e st, 2 4 9 ; O p en -P it, 61, 3 8 0 ; T ech n iq u e o f ... 3 8 0 B o erick e— Prospecting a n d O p erating S m a ll Gold P lacers— R e v i e w ... 160
B o e x — S c o ttish A lu m in ium In d u stry — D i g e s t 4 7 , 124, 185 B o ise -R o ch este r M ine (Cam pbell)— D i g e s t ... 53
B o k sb u rg G a p ... 3 0 , 163 B o lt, J . P .— S ek en k e G old M in e ... 19
B o ra x in California ... 318
B o r e -H o le P lu g — P a te n t ... 126
B o sq u i, F . L ., and A . D . W ilk in so n .— T h e N k a n a S m e lte r. 265 B o u lder P erseverance ... 369
B ow m an— A n eroid M easu rem ents in G eological R e c o n n a issan ce— D ig e s t ... 114
B rakpan M i n e s ... 104
B r a lo m e M ines, 35, 98, 166, 2 27, 290 ; M illing a t (Gray)— D i g e s t ... 378
B r a z il, Geology o f ... 319
B ridge R iver C o n so lid a ted M ines ... 3 5 , 290 B rita n n ia M in ing ... 1 67, 227 B ritish A lu m in iu m Co... 47, 124, 185 B ritish A sso c ia tio n a t L e ic e s t e r ... 130
B ritish B u rm ah P e t r o le u m ... 384
B ritish Colum bia, G old in (H . G. N ich o ls) ... 23
B r itis h Colum bia, M a p o f ... 3 1 9 B r itish G uiana M ineral R e s o u r c e s ... 322
B r itis h G u iana, M in era l Resources o f ... 62
B ritish N o n -F errous M etals R esearch A s s o c ia tio n ... 2
B ritish S o u th A frica Co... .... 6, 71, 327 B roken H ill.— Ju b ilee, 2 5 8 ; M eta llu rg y ... 380
B roken H ill A ssocia ted S m e lt e r s ... 259
B roken H ill P r o p r ie t a r y ... 259, 263 B roken H ill S o u t h ... (2) 125, 353 B roue & Co... 384
B row n, E . L .— M ining M ethods at Sherritt G ordon— D i g e s t . . 241
B row n, R . G ilm an, D e a th o f ... 40
B u ch a n s M ining Co... 8
B u ffalo-A n kerite M i n e s ... 165
Bugbee— Textbook o f F ir e A ssa y in g — R e v i e w ... 286
B u lo lo G old D r e d g i n g ... 3 4 , 184 B u rm a C o rp o ratio n ... 72, 199, 383 B u rn s M ountain G old Q uartz ... 167
B u tte rs, D e a th o f C h a r le s ... 3 22, 358 Cache B o n a n za G old M ines ... 36
Caddiclc, A . J .— R e c o v e r y o f Sulphur fro m Su lphur D io x id e . 282 C adm ium .— Furnace— P a te n t, 3 1 8 ; -T h a lliu m S ep a ra tio n — P a te n t ... 191
C a d w allader Creek ... 62
C aledonian N ic k e l C o...■... , ... 35
C a lifo rn ia , M a p o f N o r th e r n ... 192
C alifornian O ilfields, E d g e-W a ter E n cro a ch m en t in (W ilhelm , D a v is, and Clark)— D i g e s t ... 310
Cam and M otor G old M ining Co... 320
Cam p B ird ... 264. 328 C am pbell— B o ise -R o ch este r Mine— D i g e s t ... 53
C anada’s B a se M etals ... 318 Canadian K irkland G old M in es... 3 7, 164, 230 Canadian P and ora G old M in e s ... 1 66, 2 3 0 , 293 Canadian S e lec tio n Co... S, 2 6 4
TH E MINING MAGAZINE
C ariboo A m a lgam ated G old M ines ... 2 9 0 , 354 Cariboo G old Q uartz M ining Co... 3 6 , 9 9 , 1 67, 2 27, 2 9 0 , 353 C asey S u m m it G old M ines ... 2 9 4
C entral M ining and In v e stm e n t C orporation 8 , 72
Central P a t r ic i a ... 1 0 2 ,1 6 6 , 2 94, 357 Central P ro v in ces M anganese Ore C o ... 2 6 4
Cham pion R e e f ... 136
Chem ical and M etallurgical C orporation ... 72
C h ibougam ou P rosp ectors ... 3 8 , 166 Chile, Sulphur in (S. V . G r if fith ) ... 1 3 7 ,2 1 3 Chirnan G oldfields ... 384
China-Clay C entrifuging— P a te n t ... 126
C hinese E ngineerin g ... 384
C hlorine Sm eltin g, E . A . A shcroft o n , 3 2 4 and D ig e s t ... 371
C hosen C orporation ... 8 , 6 4 , 7 2 , 136 Christensen— S h a ft S ink ing a t a U ta h M ine— -D ig est 187 Chrom e in Z u lu la n d ... 2 2 6 C hrom ite D e p o sits o f E a stern T o w n sh ip s, Q u e b e c ... 62
C ity D e e p ... 2 6 2 Clark, D a v is, and W ilh elm — E d g e-W a ter E n cro a ch m en t in Californian O ilfields—-D ig est... 310
Clark-Todd A m a lg a m a t o r ... 297
C lassification— D ig e s t ... 253
C la ys, B le a c h in g ... 381
C lim ax.— R o ck -D rill, 106 ; S to p e r ... 363
C lim ax M olyb d enu m Co... 3 1 8 C oal.— A sh , M inerals in , 130 ; D u st in , 2 5 4 ; E ffec t o f M o d em P ow er R equ irem en ts on , 3 1 8 ; F ie ld , G eo lo g y of K en t, 380 ; H y d ro g en a tio n , 66 ; M ining In d u stry , N a ta l, 2 90 ; M ining in Sfcuth Africa, 125 ; S a n d -F lo ta tio n W a sh in g o f, 126 and P a te n t, 381 ; T rade, Q ueensland ... 288
C ob alt D e te r m in a tio n ... 126
C olrood O il f i e ld s ... 320
C om be and S im m o n s— V o lc a n ic A rea o f B u fu m b ira , South -W est Ugan da— R ev iew ... 96
C om pressed-A ir D istr ib u tio n ... 126
C on cen tra tio n .— a t B rok en H ill S o u th , 125 ; G ra v ity , T ests o n M ichigan Iron O res, 61 ; M ethod s and C osts a t th e A la sk a M ine o f S .R .B .M ., C. P . M cM illin o n , 2 5 9 , 3 1 8 ; a t M ount L y ell, 1 2 6 ; R o ta r y P an for D ia m o n d (J. Sim ), 159, and (C. W . W a l k e r ) ... 349
C ongress G old M ines ... 290
C o n ia u r u m ... 356
C on solidated A frican S electio n T r u s t... 263, 327 C o n so lid a ted C o llie r ie s ... 384
C on solidated G old F ie ld s o f N e w Zealand ... 7
C o n solidated G old F ie ld s o f S o u th A frica ... 2 62, 326 C o n solidated M ain R eef M ines and E s t a t e ... 134, 163, 225 C on solidated M in ing and S m e ltin g Co 3 5 , 3 8 , 169, 2 90, 355 C on solidated T in M ines o f B u r m a 2 64, 383 C on solidated T in S m elters ... 72
Copper.— E le c tr o ly tic R efin in g o f— P a te n t, 3 1 8 ; F ield s, T h e N orthern R h odesian (F . P . M e n n e ll),2 8 6 ; M etallu rgy— P a te n ts , 191, 2 5 4 ; N a t iv e and C h alcocite, 191 ; in N ickel M a ttes, 380 ; T rea tm en t o f Ores of, a t M ount L y ell, 380 ; -Zinc S e p a r a t io n ... 126
C o p p er D e p o sits in the S quaw Creek D is tr ic t, Oregon, etc 381 Copper D e v e lo p m e n t A sso c ia tio n ... 200
C o pperm in e R iver— Great S la v e L a k e A r e a ... 62
C o ronation S y n d ic a te ... 134
Cracow G oldfield 161, 191 Crook— H is to r y o f the T h eo ry o f Ore D e p o sits— R e v i e w 197 C rossley S ca v en g e P u m p D ie s e l ... 234
C yanide.— P la n t, C leaning up a Sm all— D ig e st, 377 ; Practice a t M cIn tyre Porcupine— D ig e st, 373 ; Process, H isto ry of, 191 ; S o lu b ility o f G old T ellu rid e in ... 61
D a gg a fo n tein M in e s 134, 262 D a m F o u n d a tio n s, S tren g th en in g (J. R o v it i) ... 341
D a v ie s, O ., o n R o m a n and M ediaeval M ining T e c h n iq u e . 259 D a v is, W ilhelm , and Clark — E d g e-W a ter E n cro a ch m en t in C alifornian O ilfields— D ig e s t ... 310
D a y D a w n (N ew G uinea), L t d ... 184
D ela v ille S p elter C o... 200
D en to n ia M ines, L td 1 00, 355 D ia m o n d .— C o n cen tra tio n , R o ta r y P an fo r (J. Sim ), 159, (C. W . W alker), 3 4 9 ; D rillin g for G rou ting D a m p a g e F o u n d a tio n s (J. R o v it i) , 3 4 1 ; D r illin g a t M ou nt I s a (H o oper)— D i g e s t ... 1 1 0 D ia m o n d C orp oration ... 1^4 D ia m o n d s, B la c k , in B razil ... 1 9 1 D o m e M ines ... 3 7 4 0 1, 1 64, 2 29, 292, 356 D o m in io n K irkland G old M in e ... 1 3 5 D o w — D r iv in g in B rok en G round— D ig e s t ... 5 1 D re d g e .— J elu b u , 2 5 4 ; S ta n d a r d B o t t o m T u m b ler for (W ilk in so n )— D ig e s t ... 316
D r iv in g in B ro k en G round (D o w )— D ig e s t ... 5 1 D u n w e ll M in es ... 3 5 4 D u rb a n R o o d ep o o rt D e e p ... 1 3 4 D u s t P r e c ip ita tio n , 2 5 8 ; and P a te n ts ( 2 ) ... 3 * 3 D y e r — M atachew an G old A reas— D ig e s t ... 3 7 9 E a rth L o re : Geology w ith o u t J a rg o n (Sh and )— R e v ie w --- 160
E a rth M o v em en ts (C. P . S tro m ey er) 2 7 , 91 E a s t P o o l an d A g a r 6 4 , 2 0 0 E a s t R a n d C o n s o lid a t e d ... 7 0 , 3 2 6 E a s t R an d P r o p r i e t a r y ... 1 3 4 , 2 6 2 E a s t V o g elfo n tein E x p lo r a tio n ... 163
E c h o B a y D is tr ic t ... 3 1 8 E lO r o ... 320
E ld o ra d o G old M i n e s ... 103
E lectrifica tio n in M i n e s ... 130
E le c tr o ly tic Z in c o f A u s t r a la s ia ... 263
E lu tr ia tio n , 1 2 6 ; an d A p p a ra tu s— P a t e n t ... 2 5 4 E m m o ns a n d oth ers— Geology— R e v ie w ... 95
E m pire M arketin g B o a r d ... 198
E m pire M ineral R esources ... 322
E sp era n za Copper and S u lp h u r C o... 4
E x -L a n d s N i g e r ia ... 7
E x c a v a to r s, O v erh ea tin g o f ... 61
E x p lo s iv e s .— D e to n a tin g , 61 ; H y d r a u lic M in ing C artrid g e— P a te n t ... 381
F a lc o n M ines ... 71
F a lco n b rid g e N i c k e l ... 3 8 , 1 0 1 ,1 6 5 , 2 2 9 , 357 F a r E a s t R an d A reas, L t d ... 1 6 2 , 225 Ferreira E s t a t e ... 198
F ilte r P ress D e sig n ... 126
F ire d a m p , I g n itio n of, by F ila m e n ts o f B ro k en E le c tric L a m p B u lb s ... 381
F lin -F lo n , 61 ; and O pen-C ast M in ing a t (R o c h e )— D ig e s t . . 177
F lo ta tio n .— B e h a v io u r o f G old in — D i g e s t , 6 0 ; C o arse v . F in e , 126 ; F in e G rinding fo r, 61 ; o f F lu o rsp a r— P a te n t, 62 ; o f G old A sso cia ted w ith S u lp h id e s (M oses)— D ig e st, 30 8 ; o f M anganese Ore— P a t e n t, 1 2 6 ; o f M other L o d e Ore, 2 5 4 ; P ra ctice, 3 8 0 ; S p h a le r ite — D ig e s t 317 F luorspar F lo ta tio n — P a t e n t ... 62
F o rsa y th G old M ines, N .L ... 2 2 5 F o u r N a tio n s C o n so lid a ted G old M ines ... 293
Fra n ço is C em en ta tio n C o ... 2 6 4 F ro n tin o G old M in es... 3 2 8 F u el R esearch B o a rd R e p o r t ... 3 2 2 G arry G old M in e s ... 2 9 3 G eldenh uis D eep ... 7 0 G e m s to n e s ... 3 ^ 9 G eneral M ining and F in a n c e ... 1 3 4 G eolo g ica l. R e c o n n a issa n c e, A n er o id M e a su re m e n ts in (B o w m a n )— D ig e s t, 1 1 4 ; S u r v e y an d M u s e u m ... 194
Geology (E m m o n s and oth ers)— R e v i e w ... 9 5 Geology w ith out Jargon (E a rth L ore) (S han d)— R e v ie w 160 G eophysical M ethods, 1930, S tu d ie s o f ... 62 G eop hysics.— A p p lied t o G eo lo g y , 2 5 4 ; E lectrica l
Pro sp ectin g , 254 ; L im ita tio n s o f, e tc . (W eiss)— D ig e s t, 114 ; M agnetic N e e d le S u r v e y s, 61 ; N e w D e v ic e — P a te n t, 2 5 4 ; in th e O ilfield, 4 ; S e ism ic P r o s p e c tin g 3 3 0 G lobe and Phcenix ... 1 9 9 G ly n n ’s L y d e n b u r g ... 70, 319, 326 G o d ’s L ak e G old M ines ... 1 6 6 , 2 3 0 , 293, 3 5 7 G old.— A llu v ia l (H . L. H o llo w a y ), 8 2 , 159 ; A m a lg a m a tio n
(H alcom be)— D ig e s t, 3 1 4 ; -B e a r in g C o u n try E a s t of M inna, N . N ig e r ia (W . C. G ru m m itt), 1 4 8 ; in B ritish C olum bia (H . G. N ic h o ls), 2 3 ; C o a st M in in g O rg an izatio n , 6 6 ; F in e , 380 ; F lo a ta b ility of— D ig e s t, 60 ; F lo ta tio n of, A sso cia ted w ith .Sulphides (M oses)— D ig e s t, 3 0 8 ; in
K en y a , 2, 7 ; M etallu rgy (M oore)— D ig e st, 369 ; M etallu rgy a t P orcup ine a n d K irkland L ak e, 61 ; M icroscope in E v a lu a tio n o f P lacer, 2 5 4 ; M igration of, 2 5 4 ; M ill, A P ortable P la cer (In gersoll)— D ig e st, 3 1 2 ; M ining in Georgia, 126 ; M in ing in N ew G uinea (T aylou r and Morley)
— D ig e st, 183 ; in N ig eria (W . R u ss), 2 7 8 ; N o T a x on , in W estern A u stra lia , 194 ; in N orth ern T erritory, 3 5 3 ; Ore T rea tm en t a t L ak e V iew and S ta r (T. B . S te v en s), 201 ; O u tp u t o f th e W orld, 2 5 8 ; P lacer, in Q ueb ec, 380 ; P olicy, U n ite d S ta te s, 2 5 8 ; S ad d le R eef o f S. A u stra lia , 2 5 4 ; Sm all L o d e-, M ines o f A m erica, 190 ; in S .-W . A frica, 22 6 , 289 ; in So u th ern R h odesia, H isto ry of, 196 ; S u p p le
m en t to th e T im e s , 2 5 5 ; T ellu rid e T rea tm en t, 190 ;
W orkin gs in G old Coast C olony— D i g e s t ... 305
G old C oast (A nkobra) G old P r o p e r tie s ... 2 5 6 G old C oast B a n k e t A r e a s ... 199
G old C oast C o lo n y M ines D ep a rtm en t R ep o rt ... 322
G old C oast E x p lo r a tio n ... 128
G old Coast M a p ... 62
G old F ie ld s A u stralian D e v e lo p m e n t Co... 1 3 5 ,1 9 9 , 327 G old F ie ld s R h o d esia n D e v e lo p m e n t Co... 71
G old M ines o f A u stralia ... 135
G old M ines o f L e Ch&telet ... 254
G old M oun tain M ines, L t d ... 291
G old P la cers, P rosp ectin g a n d O peratin g S m a ll (B o erick e)— R e v i e w ... 160
G old en C ycle Mill, Colorado ... 190
G old en H o rse Sh o e ( N e w ) ... 382
G r a n a d a ... 3 8 , 102, 166, 2 30, 293, 357 G ran ites, Com m ercial, o f Q uebec ... 192
G ran th am , D . R .— S eken ke G old M ine ... 223
G ravel M in in g ... 125
G ray— M illing a t B ralorn e M ines— D i g e s t ... 378
G reat B ea r L ak e, 191, 2 9 4 ; and P itc h b le n d e , T rea tm en t o f (Traill)— D ig e s t ... 247
G reat B e a r L a k e A rea ... 62
G reat B o u ld er P r o p r ieta r y ... 7, 63, 71, 135, 199 G reat S la v e Lake— C o pperm in e R iv e r A r e a ... 62
G reat W estern G old M i n e ... 351
G reene S ta b ell M in e s ... 39, 102, 166, 230, 2 93, 357 G riffith, S . V .— Su lph ur in C h i l e ... 137, 213 G rinding.— F in e, fo r F lo ta tio n , 01 ; V oid C o n ten t o f Close- P a ck ed Pow ders— D ig e s t ... 125
G rull-W icksne ... 1 67, 354 G ru m m itt, W . C.— G o ld-B earing C ountry E a s t o f M inna, N . N ig eria ... 148
G uinea G old, N .L ... 34
G ym pie G o ld f ie l d ... 126
H .E . P ro p rieta ry ... 6
H adfield ’s.— Pan Feeder, 3 5 9 ; Sir R ob ert, G ift to Sheffield U n iv e r s it y ... 1 9 4 H a d sel Mill, Im p ro vem en t in — P a t e n t ... 381
H a lco m b e— A m a lg a m a tio n — D ig e s t ... 314
H a lcro w -S w a v ze M ines 38, 165, 229, 375 H a lk y n T u n n e l ... 130
H au la ge, R o p e ... (2) 318 H ec la M ining Co... 355
H en d e rso n ’s T ra n sv a a l E s ta te s ... 6
H ercules G old-M ining C o., N .L ... 2 8 8 H o is ts, N ew , fo r H o m e sta k e M ine ... 318
H o llin g e r ... 101, 164, 379 H o llo w a y , H . L.—A llu v ia l G old ... 82, 159 H o lm a n B ro s.— D o u b le Sp in d le H o t Mill, 29 8 ; P orta b le E le c tr ic H o is t ... 298
H olm firth an d Glossop, Geology oj C o u n try R o u n d ... 255
H o m e sta k e M ine ... 1 91, 318 H o oper— D ia m o n d D rillin g a t M ount Isa— D i g e s t ... 116
H o w e y G old M ines ... 3 9 ,1 0 2 , 166, 239, 357 H u d so n B a y M ining and S m eltin g ... 177
H u ro n ia n M ining and F in a n c e C o... 2 6 4 H y d r a u lic M a ch in ery (M ead)— R e v i e w ... 95
U ling— O il-F ield s, D istr ib u tio n o f— D ig e st ... 113
Im p erial C hem ical Ind u stries 6 6 , 72, 287 Im p erial I n stitu te , F u tu r e o f th e ... 194
Im p erial S m eltin g Corporation ... 200, 264 In d ia n Copper Corporation ... S, 136, 264 In gersoll— A P orta b le P lacer Mill— D ig e s t ... 312
In g erso ll-R a n d J a c k b it ... 231
In stitu tio n and M ining E n g in eers R ep o rts ... 322
In ter n a tio n a l N ic k e l C o... 100, 165, 380 Ipoh T in ... 63
Iron.— A g e o f, 6 6 ; O res, Ita b ir a (Sanders)— D ig e st, 123 ; O res, L ow -T em perature R ed u ctio n o f, 380 ; Spo n g e in S in tering, 381 ; an d S te el In d u stry , B r itis h 131, 2 58, 322 I r o n Ore in the R ed M o u n ta in F orm ation, A la b a m a ... 381
Itab ira Iro n Ores (Sanders)— D i g e s t ... 123
Ja ck son -M an ion C on solid ated M in e s ... 294
Ja n ta r N i g e r ia ... 382
Joh a n n esb u rg C o n so lid a ted ... 70, 136, 326 J o n e s, W . R ., on Silico sis, 6 7 , 3 5 1 ; and D ig e st ... 121
J u g a V a lley T i n ... 127
J u n c tio n T in M ine ( N ig e r ia ) ... 71
K agera (U ganda) T i n f i e l d s ... 63
Kalcam ega G oldfield, 263 ; and G eo lo g y o f ... 194
K algoorlie L ab our ... 327
K a m oun gh la T a v o y T in ... 72
K am p ar M a l a y a ... 328
K am ra T in D red g in g 128, 264 K a m u n tin g T in ... 383
K a o k o v eld E x p e d itio n ... 2 8 9 K a p a o n ik ... 72
K ee le y Silv er M ines ... 2 6 4 K en t (F.M .S.) T in D r e d g i n g ... 128
K e n ty G old M ines 3 8 , 101«, 165, 229, 292, 375 K en y a .— G eo lo gy o f, 194 ; G old, 2 , 7, 194, 263 ; P ro sp ectin g in , b y E a rth-A ugerin g (A. J . P . W alter) ... 329
K en y a G old M ining S y n d ic a t e ... 135
K ep o n g D r e d g i n g ... 383
K in ta K ellas T in D red g in g ... 199
K irkland Gold B e l t 3 8 , 102 K irkland L a k e 3 8 , 293 K o m a ta R eefs G old M ining Co... 136
K o n o n g o G old M ines ... 7, 71, 135, 199 K o o te n a y B e l l e ... 36, 99, 168, 2 2 8 , 291 K ra m a t P u la i... 128
K w ahu M ining Co. (1925), L td ... 7
L a ce P ro p rieta ry M ines ... 198, 326 L agares T in M in es... 264
L a h a t M ines ... 63, 356 L ak e Shore ... 101
L ak e V iew and Sta r, 135, 2 63, 369, 370 ; and Ore T rea tm en t a t (T. B . S tev en s) ... 201
L ak eland G old M ines ... 164, 229, 293 L a n g la a g te E s ta te ... 198
L ea R ecorders ... 2 9 7 L e a d ... 62
L ead.— D esilv erizin g— P a te n t, 1 2 6 ; R ec o v e r y from S u lphides— P a te n t, 126 ; R ed u ctio n o f Ores o f, b y Chlorine S m eltin g, E . A . A sh cro ft o n , 324 and D ig e st, 371 ; Scrap, 2 5 4 ; Sulp h id es, V ola tiliza tio n of— P a te n t, 2 5 4 ; and T elluriu m A llo y s— P a te n t, 62 ; -Zinc D e p o sits, M iam i- P ich er ... 191
L ee G old M in e s ... 2 92, 3 57, 376 L eeu w p o o rt T in M ines ... 134, 198 Lim estone D e p o sits, T a n g an yik a ... 62
Lim estones, C a n adian , f o r B u ild in g P u rp o ses ... 62
L ittle L o n g L a c G old M in e ... 293
L ittlefo rd , J . W .— R oan A n telo p e C oncentrator ... 9
L oa n g w a C on cession s, L td 7 , 71 Locker V ib rating C on veyor ... 3 6 2 L o g a n .— U n derground P ipe-L ine P ro tectio n — D ig e st ... 315
L o n d o n , A u stralian, and General E x p lo r a tio n Co...'. 2 6 4 L o n e ly R e e f ... 262
L u ipaards V lei ... 31, 134 Luiri G old A reas ... 3 2 7 L yd en bu rg G old Farm s C o... 30
L y n d h u rst D eep L ev el (Gold and Silver) ... (2) 7, 71 M cIn tyre Porcupine, 101, 164, 2 29, 356 ; C yan ide P ra ctice a t — D ig e st, 373 ; O p erations a t ... 380
TH E MINING MAGAZINE
P A G E M acK enzie R ed L ak e M in e s ... 2 9 4 M cMillan G old M in es... 3 8 . 105, 2 2 9 , 292 M cM illin, C. P ., o n M illing M eth od s and C osts a t th e A laska
M ine o f S . R . B . M ... 2 5 9 ,3 1 8 M cW atters G old M ines ... 39, 165 M acassa ... 3 8 , 1 64, 2 30, 2 9 3 , 357
M ach a v ie G old M in in g ... 134
M agn etic S ep a ration , 126 and P a te n ts, 6 1 ,1 9 1 ; o f D r e d g in g M aterial— P a te n t ... 62
M a gnetite in N e w J e r s e y ... 380
M ak S iccar M in es, L td ... 291
M alayan T in D red g in g ... 264
M alayan T in f ie ld s ... 3 2 8 M a laysiam T in ... 128
M anganese.— Ore F lo ta tio n — P a te n t, 126 ; Ores, E lim in a tio n o f A n tim o n }’ and A rsenic— P a te n t, 2 3 4 ; in th e U .S . 61 M aple L eaf M ines ... 294
M ashaba R h od esian A sb e sto s Co... 135
M atachew an G old Area (D yer)— D ig e s t ... 379
M avor and Coulson T ra v ellin g S c h o la r sh ip s... 2 5 8 M aw chi M ines ... 8, 383 M azoe D istr ic t, S. R h o d esia , G eo lo g y o f (T y n d ale-B iscoe)— D ig e s t ... 2 4 4 M a zo e V a lle y Gold B e lt, Geology o f C en tral P a r t o f ... 62
M ead— H yd ra u lic M a ch in ery — R e v i e w ... 95
M ennell, F . P .— T h e N orth ern R h odesian Copper F ield s . . . . 286
M eridian M ining Co... 169
M erz, A . R .— S m eltin g P ra ctice a t R oan A n telo p e ... 73
M essina (Transvaal) D e v e lo p m e n t C o ... 104, 382 M etallurgy.— and Arcba?ology, 66 ; D efin itio n o f ... 194
M etals, Seco n d a ry , in th e U n ite d S ta te s ... 133
M exican C orporation ... 383
M iam i-Picher Zinc-Lead D e p o s its ... 191
M ich ip ico ten R iv e r A re a ... 62
M icroscopes in E v a lu a tio n o f Placer G old ... 254
M iddle W itw atersrand (W estern Areas) ... 32, 103 M ill C lose M ines ... 8
M illing M ethods and C osts a t th e A laska M ine of S .R .B .M ., C. P . McMillin o n ... 2 5 9 , 318 M ine.— Cage, A lu m in iu m A llo y , 318 ; E fficien cy and th e Q u ota S y stem (B. B eringer), 145, and (R. B . W oakes), 350 ; H a u la g e, 191 ; O penings, 191 ; O rganization, 254 ; Props, Y ield a b le, 6 1 ; T im b er P reservation (W inegar)— D i g e s t .. 115
M in es, U n w atering Flooded C o a l... 127
M ining.— A n cien t, in B rita in , 1 3 0 ; a t D e p th (T ruscott)— D ig e st, 180 ; D riv in g in B roken G round (D ow )— D ig est, 51 ; Engineers and th e P ub lic, 3 2 2 ; M etalliferous, in G reat B rita in d u ring 1932, 260 ; M ethods a t Sherritt Gordon (B row n)— D ig e st, 241 ; O pen-C ast, a t F lin F lo n (R oche)— D ig e st, 177 ; Sand F illin g in, 61 ; T echnique, O. D a v ies on R om an and M e d ia e v a l... 259
M in in g , A n d T h is is ! ... 3 8 1 M ining C orporation o f C a n a d a ... 100
M ining T r u st ... 7> 286 M odderfon tein E a s t ... 7 0, 255 M onarch M i n e ... 291
M onazite Sand R ed u ctio n — P a te n ts (2) ... 1 9 1 M o n ta n a : Som e D e p o sits o f O rnam ental S t o n e ... 381
M oore— G old M etallurgy— D ig e s t ... 3 6 9 M orley and T a y lo u r— G old M ining in N e w G uinea— D ig e s t. . 183
M orning S ta r (Fairview ) G old M ines, L td ... 100
M oses— F lo ta tio n o f G old A ssociated w ith Sulphides— D ig est 308 M oss G old M ines ... Iqq M otter— B la stin g w ith Liquid O xygen—D i g e s t ... 249
M ount C o o lo n ... 3 4, 98, 1 6 1, 22-1, 2 87, 352 M ount E l li o t t ...... 327
M ount Isa, 7, 33, 97, 161, 224, 263, 286, 329, 3 5 2 ; and D iam o n d D rillin g a t (H ooper)— D ig e s t ... n g M ount L y ell, 35, 126, 1 62, 3 2 8 ; O perations a t ... 380
M ount M agnet G old M i n e s ... * 04
M ount Morgan ...3 4, g 7j 1G1> 2 24, 287, 352 M oun t W an d oo ... 3 4 g g jG 2 M ozam bique C o n v en tio n fo r N a tiv e Labour S u p p ly on R an d 198 M ufulira Copper M ines ... 3 9 - 7 page 320 256 36 126 N a r a g u ta ... N a ra gu ta D u ru m i A r e a s ... N a tio n a l Gold M ines ... N e v a d a C onsolidated C opper Co... N e w Central W itw atersrand A reas, L t d ... « N e w C onsolidated G old F i e l d s ... W L 254 184 163 2 5 5 N e w G oldfields o f V enezuela N e w G u i n e a . —Gold M ining (T a y lo u r and M orley)— D ig est, 1 8 3 ; M igration o f G old i n ... N e w G uinea G oldfields ... N e w K le in fo n t e in ... N e w M odderfontein 1 6 3 , 1 72 1 6 7 3 5 3 3 6 0 N e w S te y n E s t a te ... N e w Zealand Crown M i n e s ... N e w m o u n t M ining C o r p o r a t io n ... N ew n es O il-S h a le ... N ia g a ra V ibrating S c r e e n ... N ic h o ls, H . G.— G old in B ritish C o lu m b ia ... 23
N ick el M attes, Copper in ... 3 8 0 N ig el G old M ining Co... • ... 1 3 4 , 163 N igeria.— G old-B earing C ou n try E a s t o f M in na (W . C. G rum m itt), 1 4 8 ; G oldfield (W . R u ss), 2 7 8 ; M ines D ep a rtm en t R e p o r t fo r 1 9 3 2 ... N igerian C o n s o lid a te d ... 3 8 2 N k a n a M ine, 7, 226 ; P h o to g ra p h s, 32 ; R efin ery , 1 6 3 ; Sm elter (A. D . W ilkinson and F . L . B o sq u i) ... 2 6 5 N o b le F iv e M i n e s ... 291
N oran d a ... 1 6 5 , 2 9 3 , 3 5 7 N o rth A sh a n ti M in in g ... 135
N orth A ustralia M ines, N .L ... 34
N o rth B roken H i l l ... 2 6 3 N o r th Charterland E x p lo r a t io n ... 7
N o rth K algurli (1 9 1 2 )... 1 2 8 N orth R and M in ing A reas, L t d ... 2 2 5 N orth ern E m p ire M in es ... 2 9 4 N orthern Peru M ining and S m e ltin g Co... 1 2 5 N o rth ern S m e ltin g and C hem ical Co... 3 20 N o rth ern T ra nsvaal (Messina) C opper E x p lo r a tio n Co. 1 0 4 , 1 9 8 , 2 2 6 , 2 8 8 N o rw a y , M ining L a w s o f ... 2 5 4 N o u rse M ines ... 2 5 5 N o v o B rdo M i n e s ... 72
N u n d y d r o o g ... 136
N y a s a la n d W a te r S u p p ly I n v e stig a tio n R e p o r t ... 2 5 5 O’D o n nell— Sulphur M ining u n d er W a ter — D ig e s t ... 251
Oil.— from Coal, 6 6, 162 ; fro m C oal in A u str a lia , 8 9 , 2 8 7 ; -E n g in e R a il T ra n sp o rt, 1 8 ; - F ie ld s , D is tr ib u tio n o f (Illing)— D ig e s t, 113 ; -F ie ld s , E d g e -W a te r E n c r o a c h m en t in C a lifo rn ia n (W ilhelm , D a v is , an d C lark)— D ig e s t, 310 ; -F ield s, G eo p h y sic s in th e , 4 ; - F ie ld s , U n it D e v e lo p m e n t o f (U m p leb y )— D ig e s t, 113 ; F lo w in W e lls — P a te n t, 3 1 8 ; S ed im en ta ry V u lca n ism in T r in id a d , 2 5 4 ; -Shale In d u str y in A u stra lia , 98, 287 ; -S h a le T r e a tm e n t in N e w S o u th W a les, 3 5 3 ; -W ell L o c a tio n (V erslu y s)— D i g e s t ... 1 1 3 O il, A n a ly s is of, f o r P ro d u ctio n o f L u b ric a n ts ... 192
O liver G old M ines S y n d ic a te ... 2 9 2 O ntario : M in in g L a w s a n d the D e p a rtm e n t o f M in e s ... 381
O ntario R efin ery Co... 2 9 2 O nverw acht P la t i n u m ... 4 3 4, 1 9 3 3 0 6 Ore D ep osits, H is to r y o f the T heo ry o j (C rook)— R e v ie w ... 1 9 7 O re-D ressin g : S ep a ra tio n T ech n iq u e— D i g e s t ... 5 9 Oregon : C o p p er D e p o sits in the S q u a w Creek D is tr ic t, etc. . . 381 O rinoco O ilf ie ld s ... 1 2 8 Oro G rande ... 3 9 , 1 0 2 , 1 66, 2 93, 3 5 8 O roville D r e d g i n g ... 3 2 8 O ta v i M ining and R a ilw a y C o ... 3 2 6 O x y g en , B la stin g w ith L iq u id (M otter)— D ig e s t ... 2 4 9
M urex, L td .
P a h a n g C o n s o l i d a t e d ...
P an a m a C o rp oration (Canada) . P and ora ...
P a p u a , G old in ...
200 N am aqua C o p p e r ... g g2
... 3 82 ... 8, 3 2 8
102 ... g g P a r k h i ll ... 1 0 2 , 2 93, 357 P a tta n i T in ... 3 3 3 P a y m a ste r C o n so lid a ted M in es ... 2 2 9
FACE 3 2 0 2 5 6 36
■■■• 126 131
■ 101,134 8,328 K & c s t,
254 181 163 255
• 1 ® ,198 72 167 353 360 23 380 134,163 a (W. C, 8 ; M ines
131 382
®y, 163;
265 291
■ 165,293,357 IS 31 263 7 128 225 291 125 300 in Co.
104,198,226,2*8 251
...
255136 255 t . . . 251
Ha, 89,287; ¡tnbnOon of ■ Encroach- ric)—Digest, n it Develop- in WeBs— iniiad, 254; ; Treatment P elep a h T in D r e d g i n g ... 199
P eñ a C op p er... 256
... 264
Surface 114 286 160 113 192 ... 2»
u s a
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".'m m® * 10 59 , etc. ■■ 3S1m
166,293,358 328 ... 326... 102
... 98
293, 357 . 383 . 229 P erak R iv e r H y d r o -E le c tr ic P ow er Co... P etro leu m .— C ongress, W orld , 18, 6 9 , 113 S h o w in g s o f (B e e b y T h o m p so n )— D ig e s t ... P etro leu m D evelopm en t a n d Technology, 1933— R ev iew P h a se R u le S tu d ie s (R h o d es)— R e v ie w ... P h ilip p in es, P r im itiv e M in ing in th e (L. L. W ilso n ) ... 85
P ig g ’s P e a k ... 33
P io n eer M ine ... 3 5 , 9 8 ,1 6 7 , 354 P ip e -L in e , U n d erg ro u n d , P r o te c tio n , 3 8 0 ; an d (L o g a n )— D i g e s t ... 315
P la cers.— D e se r t (S. T resk in sk y ), 2 1 9 ; P o rta b le D rill for (In gersoll)— D i g e s t ... 312
Plan E n la rg in g (H . G. S m ith) ... 349
P la s tic s a g a in st M etals ... 2
P la tin u m in B r a z i l ... 126
P n e u m a tic S ep a ra tio n — P a t e n t ... 61
P o d ero sa M in in g ... 128
Po rk ellis T in M in e ... 320
P o ta sh ... 381
P o ta sh D e t e r m in a t io n ... 61
P o tg ie te rsr u st P la tin u m s ... 6
P ow ders, V o id C o n ten t o f C lose-P ack ed — D i g e s t ... 125
P o w er P la n t, E ffec t o n Coal o f M o d ern ... 318
Prem ier G old M in es... 2 2 7 , 2 90, 3 53, 354 P reto ria S a lt P a n ... 3 1 8 P riestm a n L ev el-C u t G rab ... Prin cess R o y a l G old M in es, L t d ... P ro sp ectin g , H andbook o f ... 381
P ro sp ectin g in K en y a b y E a rth -A u g erin g (A. J . P . W a l t e r ) .. P ro sp ectin g a n d O p erating S m a ll Gold P la cers (B o erick e)— R e v i e w ... P rospectors, H in ts t o , o n C y an ide P la n t C lean-U p— D ig e s t . . Pu m p in g .— A u to m a tic , a t N e v a d a C on solidated C opper, 126 ; Slu dge— P a te n t ... 2 5 4 P y r ite R o a stin g — P a te n t ... 296 329 160 377 61 Q uarrying in B rita in in 1 9 3 2 ... 260
Q uebec G old M in ing C orporation ... 355
Q ueen M i n e ... 2 2 8 Q u ick silv er in C a lif o r n ia ... 191
R a d iu m : T r e a tm e n t o f G reat B ea r L ak e Ores (Traill)— D ig e s t 247 R a n d .— E x te n s io n o f E a s t, 30 ; G eo lo g y , 2 2 5 ; L ab our, 7 0 ,1 9 8 , 3 23, 3 2 6 ; M ining O rgan ization, 6 6 ; P ro posal for S ta te M illing in th e, 2 8 8 ; T a x a tio n , 2 ; W a ter S u p p ly . 351 R a n d L eases (V o g elstru isfo n tein ) C o... 2 8 8 , 326, 352 R a n d io n te in E s ta te s ... 31
Rangoon, Geology a n d U n derground W a te r o f ... 127
R a n so m es and R ap ier.— E x c a v a to r s. 106 ; T ru ck Concrete M ixer ... 361
R au b A u stralian G o l d ... 136
R a y m o n d M ech anical A ir S e p a r a t o r ... 170
R ea v e il A ir -C o m p r esso r s 2 34, 2 9 8 R ed H a w k G old M in es... 35
R e id y s M araroa ... 135
R e n o G old M i n e s ... 36, 9 9 ,1 6 7 , 2 2 7 , 2 91, 354 R en o n g T i n ... 256
R e str ic tio n and M ine E fficien cy (B. B eringer), 145, and (R . B. W o a k e s ) ... 350
R ez e n d e M ines ... 32
R h o d es— Ph ase R u le S tu d ie s— R ev iew ... 160
R h odesia.— Copper F ie ld s o f N o rth ern (F . P . M ennell), 2 8 6 ; H is to r y o f G old in S o u th e r n , 1 9 6 ; So u th ern , G eo lo g y o f M azoe D istr ic t (T y n d a le-B isco e)— D i g e s t 244 R h o d esia B rok en H ill ... 7 , 127 R h o d esia n A n g lo A m erican ... 134, 327 R h o d esia n C orp o ra tio n ... 382
R h o d esia n S electio n T ru st ... 71, 327 R h o k an a C o r p o r a tio n ... 6, 199, 2 62, 265, 327 R ichfield C ariboo G old M in e s ... 36
R ic k a b y — S w a y ze G old A rea— D ig e s t ... 375
R oa n A n te lo p e , 135, 2 62, 326 ; C on cen trato r (J. W . L ittle - fo rd ), 9 : S m e ltin g P ractice (A. R . M e r z ) ... 73
R o b in so n D e e p ... 70
R o c h e — O pen-C ast M in ing a t F lin F lo n — D ig e s t ... 177
R o ck . D rill, N e w Clim ax, 10 6 ; T em p eratures in N orthern O ntario ... 191
PA G E R o ll-S h ells, In sta lla tio n o f ... 380
R o m a n and Mediaeval M ining T ech n iq u e, O . D a v ie s o n . . . . 2 5 9 R o o d ep o o rt U n ite d ... 198
R ooib erg M inerals D e v e lo p m e n t C o... 7 0 , 134, 1 98, 256 R o p ew a y , Bi-C able, fo r N orthern Peru M in in g ... 125
R o se D e e p ... 262
R o ss.— I n s titu te A m a lg a m a tio n w ith L o n d o n S c h o o l of H y g ie n e and T ro p ica l M edicine, 322 ; Sir R o n a ld , M em orial to ... 130
R o sterm an M ining S y n d i c a t e ... 7
R o u y n -B e ll R iv e r R eg io n P r o s p e c t i n g ... 126
R o v iti, J .— S tren g th en in g D a m F o u n d a tio n s ... 341
R o y a l C ornw all P o ly te c h n ic C enten ary ... 2
R o y a l S ch o o l o f M ines A n n u a l D i n n e r ... 5
R u b y Creek . . . . ... 33
R u K ey ser— T r e a tm e n t o f A sb esto s— D ig e s t ... 56
R u k u b u T in ... 256
R u ss, W .— T h e N ig eria n G oldfield ... 278
R u sten b erg P la tin u m M in e s ... 6
R u sto n P o rta b le Oil E n g i n e ... 361
S t. A n th o n y G old M i n e s ... 2 9 4 S t. J o h n d el R e y ... 370
S t. J o sep h L ead C o ... 5 3 S a lt Dom es, O rig in o f the A n h y d rite C a p R ock o f A m e r ic a n . . . . 381
San A n to n ia G old M ine ... 191, 293 San F in x T i n ... 136, 2 64, 320 San d F illin g ... 61
Sand ers— Ita b ira Iro n Ores— D i g e s t ... 123
S a n ta G ertrudis ... 328
Scraper L o a d i n g ... 61
Screen.— N iagara V ib rating, 360 ; Sh erw en V ib r a tin g 362 Sed im e n ta tio n — D ig e s t ...: ... 253
S e ism o lo g y : E a rth M o v em en ts (C. P . S tro m ey er) ... 2 7 , 91 Sek en k e G old M ine (J. P . B o lt), 1 9 ; (D . R . G r a n th a m ).. 223
S e la y a n g T in D r e d g in g ... 72
S e lec tio n T r u s t ... 2 6 4 , 320 S ep a ra tio n T ech n iq u e in th e C hem ical In d u stry — D ig e s t . . . . 59
S h a ft Sin k in g .— a t B roken H ill S o u th , 125 ; b y F reezing, 61 ; a t a U ta h M ine (C histensen)— D ig e s t, 187 ; a t W est R an d ... 125
Shan d — E a rth L o r e : Geology w ith o u t Jargon — R e v i e w . . . . 160
S herritt G ordon, 103 ; M ining M ethod s a t (Brow n)— D ig e s t 241 S herw en Screen, N e w T y p e o f ... 362
Sherw ood S t a r r ... 256
Sia m ese T i n ... 64
Sierra L eo n e D e v e lo p m e n t Co... 199
S ig n a llin g S y ste m s, E lectrica l, a n d Telephones in M in es . . . 62
S ilic a te s, T r e a tm e n t o f— P a te n t ... 62
Silicosis.— W . R . J o n e s on , 67, 3 5 1 ; and D ig e st, 1 2 1 ; P r e v e n tio n 2 5 8 S ilv er A g reem en t a t W o rld C o n feren ce... 68
Sim , J .— R o ta r y P a n for D ia m o n d C o n ce n tr a tio n ... 159
S im m er and J a c k 198, 262 Sim m o n s and Com be— V olcanic A rea o f B u fu m b ira , South- W e st U ganda— R ev iew ... 96
Sink ep T in C o ... 72
Sin terin g Im p ro v em en ts— P a t e n t ... 191
S is c o e ... 3 8 ,1 0 2 ,1 6 5 , 2 30, 2 93, 357 Sm elter G old M ines ... 39, 166, 2 30, 293, 358 Sm eltin g .— P ra ctice a t R oan A n te lo p e (A. R . M erz), 73 ; R e c o v e r y o f D u s t i n ... 318
S m ith , H . G.— Plan E n la r g in g ... 349
S om a lilan d , Geology o f B r itis h ... 192
S o n s o f G w alia ... 63
S o u th A frica, M ineral W ea lth o f ... 351
S o u th A frican G old A reas “ A ” ... 3 8 4 S o u th A frican T o w n sh ip s, M ining, and F in a n c e . . . 103, 104, 134 S o u th C r o f t y ... S, 2 6 4 S o u th K a lg u rli... 7, 63 S o u th N e w M oon, N .L ... 225
S o u th -W e st A frica Co... 326
Southern K am par T in D r e d g in g ... 328
So u th ern R h o d esia B a se M etals Corporation ... 2 59, 318 S o u th ern S iam ese T i n ... 136
S ou th ern T ronoh ... 64
Spectrograph , Q uartz, A p plied to th e S tu d y o f O paque M in e r a ls ... 61
Sp h a lerite F lo ta tio n — D ig e s t ... 317
TH E MINING MAGAZINE
Spo k a n e Ida h o Copper Co... 354
S ta d a c o n a R o u y n M in es... 39
Sta r E x p lo r a t io n s ... 328
S te el In d u stry , B r i t i s h 131, 194, 2 5 8 , 322 S tern heim B a s i n ... 318
S tev en s, T . B .— Ore T r e a tm e n t a t L ak e View and S ta r 201 Strom eyer, C. P .— E a rth M o v e m e n t s 2 7 , 91 Sub N ig el ... 198
Sulphide C o r p o r a tio n ... 2 00, 328 Sulphides, T rea tm en t of— P a te n t ... 191
S u lp h u r — in Chile (S. V . G riffith), 137, 2 1 3 ; from Iron Ores— P a te n t, 191 ; M ining u nd er W a ter (O’D o n n ell)— D ig e st, 251 ; P u rifica tio n of— P a te n t, 126 ; R eco v ery , 191 ; R e c o v e r y from S u lp hid es— P a te n ts (2), 126 ; R e c o v e r y of, from Sulphur D io x id e (A. J . Caddick) ... 282
Sulphuric A cid V apour, S ep a ra tio n of— P a te n t ... 318
Sunorca E x p lo r a tio n C o... 292
S u rv ey in g .— A p p lica tio n o f M etal S h eets fo r S u r v e y P lans, 1 2 6 ; w ith M agn etic N eed le, 61, 3 1 8 ; Plan Enlargin g (H . G. S m ith ), 349 ; T ach eo m etrica l L ev ellin g i n ... 254
S w a y ze G old Area (R ick ab y)— D i g e s t ... 375
S w a y ze -H u y ck e G old S y n d ic a te ... 3S, 292 S y lv a n ite 37, 101, 2 93, 376 T an am i Gold M ining S y n d ic a te ... 7 ,1 9 9 ,2 6 3 T a n ga n y ik a : Sek en k e G old M ine (J . P . B o lt ) ... 19
T a n g a n y ik a C entral G old M ines ... 19
T a n g a n y ik a C o n c e s s io n s ... 3 2 7 ,2 6 3 T a n g a n y ik a D ia m o n d s ... 263
T a n g a n yik a , P ro v isio n a l Geological M a p o f... 127
T a n o A l u v i a l s ... 64
T aq uah and A b o s s o ... 63
T a v o y T in D r e d g in g 64, 72 T a y lo r (B rid ge R iver) G old M ines ... 227
T a y lo u r and M orley— G old M ining in N ew G uinea— D ig e st . . 183
Technical M a n S e lls H is S e r v ic e s ... 62
T eck -H u g h es ... 3 7 , 166, (2) 230, (2) 357 T e k k a ... 383
Telephones, M in in g ... 192
T ellu rid e T rea tm en t ... 190
T ellu riu m and Lead A llo y s— P a t e n t ... 62
T e m o h T in D r e d g i n g ... 256
T e tiu h e M ining Corporation ... 200
T hallium -C adm ium S epa ra tio n — P a te n t ... 191
T h om p so n — Su rface P etro leu m Show in gs— D i g e s t ... 114
T h under M ountain G e o lo g y ... 254
T iger M ines ... 384
T ig o n M ining and F in a n c e ... 136
Tim ber P reservation , M ine, (W inegar)— D ig e s t ... 115
T in.— C on su m ption , 130, 136 ; M ining in Q ueen sland, 2 2 4 ; R estrictio n , 8, 6 8, 7 2 ,2 0 0 , 2 5 8 ,3 2 8 ; in S o u th ern R h o d esia 163 Tin F ie ld s o f N igeria ... 256
T in H o ld in g s, L t d ... 328
T in P rop erties ... 127
T oburn G old M in es 101, 165 T on gkah H arb ou r T in D r e d g in g ... 199
T raill— T rea tm en t o f G reat Bear L ak e P itch b len d e— D ig e st . 247 T ram m ing, H and ... 254
T ra nsport.— D ie sel R a il, 1 8 ; U n d erg ro u n d... 254
T ra nsvaal G old M ining E s t a t e s ... 62
Trepca M ines 72, 383 T resk in sk y , S.— D esert P lacers ... 219
Trinidad In v e stm e n ts ... 256
T rinid ad L easeholds ... 264
T rito n G old M ining C o... 199, 263 T ro n o h M ines ... 63
T r u sc o tt— M ining a t D e p th — D i g e s t ... 180
T ube-M ill F eed , D r y in g o f— P a te n ts (2) ... 254
T u joh T in (N .L .) ... 3 2 8 T u nnellin g.— a t H a lk y n , e tc ., 130 ; in Ja pan ... 61
T urn bull Porcupine G old S y n d ic a te ... 292
T y n d a le-B iscoe— G eo lo g y o f M azoe D istr ic t, S. R h odesia— D i g e s t ... 244
Uganda, S o u th -W est: V olcanic A re a o f B u fu m b ira (Combe and S im m on s)— R ev iew ... 96
U raplcby— U n it D e v e lo p m e n t o f O il-F ields— D i g e s t ... 113
U n ion Corporation ... 8, 31 U n ion M inière du H a u t K atanga ... 7
P A G E U n ited M ining and Q uarrying C o... 192
U n ited Sta tes, Geology o f W estern ... 3 1 9 U n ited T in A reas o f N i g e r ia ... 3 ^7 V aal R iv er G old ... ^89
V an R y n D e e p ... V an R y n G old ... • 1Q1 V enezuela, Progress m ... V en tila tio n .— D u st in M ines, 61 ; M easu rem ent, 3 1 8 ; of M ines in N o rthern O n tario, 191 ; S p littin g th e A ir Current, 61 ; S ta tu s of A ir-C on dition ing, 380 ; S u r v e y s ... 191
V en tures, L td ... 3 ^ 9 V ereeniging E s t a t e s ... 3 3 V ersluys— O il-W ell L o c a tio n — D i g e s t ... H3 V icta u lic T o g g le J o in t , 296 V ictoria, D eep -L ea d M in ing in ... ' V ' V icto ria D is tr ic t, Southern R h odesia, N o tes on Gold M in in g in 127 V ip ond ... 3 7 , 1 6 4 ,2 6 4 , 2 9 2 ,3 5 6 V la k fontein C on solidated E s ta te s and G old M ining C o ... 2 8 8 V o gelstru isbult G old M ining A r e a s ... 262
V og elstru isto n tein ... I9 3 W ages in th e M ineral In d u str y ... 3 80 W alker, C. W .— R o ta r y Pan for D ia m o n d C o n c e n tr a tio n 349 W alter, A . J . P .— P ro sp ectin g in K en y a b y E a r th -A u g e r in g . 329 W anderer C o n so lid a te d ... l 3 ^, 319 W a nk ie C olliery ... 3 26 W a ter F in d in g , T he A r t o f ... 2 5 5 W aysid e C on solidated G old M ines ... 35
W eardale L e a d ... 384
W eiss, O.— on G eop hysics in th e O ilfield, 4 ; L im ita tio n o f G eop h ysical M ethod s, e tc .— D ig e s t ... 114
W eld ing in E n g in eerin g ... 2 5 4 W elg ed a ch t E x p lo r a tio n C o ... 104
W erf Conrad D r ill ... 40
W e st A frican D i a m o n d ... 3 8 2 W est R an d C on solid ated ... 7 0 , 125 W est Springs ... 104, 326 W e st W itw atersran d A reas ... 6, 70, 103, 1 34, 198, 26 2 W estern A reas, L td ... 198
W estern G old M ines ... 199
W estern M in ing C o r p o r a tio n 130, 135, 195, 225 W estern R eefs E x p lo r a tio n and D e v e lo p m e n t Co... 31, 103 W estralian G old and F in a n c e ... 192
W heal R eeth T i n ... 8 , 2 6 4 W h ite M etal fo r W in d in g -k o p e S o c k e t s ... 125
W h itew a ter Gold B e lt ... 62
W ilh elm , D a v is, and Clark— E d g e-W a ter E n cro a ch m en t in Californian O ilfields— D ig e s t ... 310
W ilk in son, A . D ., and F . L. B o sq u i—T h e N k a n a S m e lt e r .. . . 2 6 5 W ilk in son, G. G.— Standard B o tto m T u m b ler for D red g es— D i g e s t ... 3 1 6 W ilso n , L. L .— P r im itiv e M ining in th e P hilip p in es ... 85
W i lu n a 71, 135, 199, 2 63, 3 2 7 , 370 W indhoek G old M in e s ... 2 8 9 W inding.— P rev en tio n o f O ver-, 3 1 8 ; -R o p e S o c k e ts, W h ite M etal ... 125
W inegar— M ine T im ber P reserv a tio n — D ig e s t ... 115
W itb a n k C olliery ... 2 6 2 W itw atersrand D e e p ... 134
W itw a tersra n d G o ld f ie ld ... 3 1 9 W itw atersran d U n iv ersity , R ep la cem en t o f F ir e L o sse s a t . . 132
W oakes, R . B .— M ine E fficien cy and th e Q u o ta S y s t e m 350 W orld E co n o m ic C onference 6, 68 W r ig h t-H a r g r e a v e s ... 37, 164, 165, 3 18, 356 Y m ir-Sheep Creek G o ld f ie ld ... 126
Y u k o n C on solidated ... 136
Y uk on , M in in g I n d u s try of, in 1932 ... 62
Z aaiplaats T in ... 3 1 9 Zam besia E x p lo r in g ... 127
Zinc. Copper Sep a ra tio n , 126 ; D is tilla tio n — P a te n t, 1 2 6 ; Furnace— P a te n t, 3 1 8 ; -L ead D e p o s its , M iam i-P icher, 191 ; M etallu rgy— P a te n ts, 61, 6 2 , 1 26, (2) 191 ; P urification— P a te n t, 2 5 4 ; R e d u ctio n o f O res o f, b y Chlorine S m eltin g. E . A . A sh cro ft o n , 3 2 4 and D ig e s t, 3 7 1 ; Separation from F errous M ateria l... 61
Zinc C orporation 7, 72
Z leto v o M i n e s ... 7 2
