INDEX TO VOLUME XLII.-JANUARY TO JUNE, 1930.
Abana M ine...
Abbaye Consolidated...
Abrasives (Imperial Institute Report) . Aerial Ropeways (Harrison R oe)...
African Asbestos T rust...
36, 103, 301, 366PAGE
12860 ... 198281
Agnew, John A.—The Education of the E ngineer... 289
Aircraft in Mining ... 262
Alaska, Geology and Mineral Resources of South-eastern (Buddington and C hapin)... 60
Alaska Juneau Concentrator (Bradley)—D ig e st... 254
Albany (S. A.) Products Co... 226
Alberta, Core-Drilling Bituminous Sands of Northern (Ells)* ... 60
Allenby Concentrator, B.C. (Taylor)—Digest... 56
Alluvial Deposits, Mining of, by Dredging and Hydraulicking (Thorne and Hooke)—R eview ... 24
Alluvial Diamonds (Gold Coast), Division of C apital... 267
Alluvial Tin Deposits, Testing of (Gordon M arriott)... 91
Aluminium, Metallurgy of, 326; P a te n t... 390
Amalgamated Metal Corporation... 64
Amalgamated Zinc Co... 361
Amalgamated Mining T ru s t... 336
American.—Engineers and Russia, 133 ; Managers of British Properties ... 197, 333 American Boy Mining Co... 101
Amity Copper Mine ... 103, 300, 366 Ampang (Perak) Tin Dredging Liquidation ... 199
Amulet M in e... 36, 103, 301 Anaconda Co... 72
Anderson and Boggs—The Noranda Smelter—D igest... 245
Anglo-American Corporation... 266
Anglo-Bauchi and London Tin Syndicate... 8
Anglo-Burma Tin, 8, 336 ; R e p o rt... 63
Anglo-Nigerian Corporation... 64
Anglo-Oriental Mining C orporation 268, 336 Anglo-Persian Oil Co. and P ap u a ... 99
Antimony. Lead-Cadmium Alloy, 15 ; Metallurgy of . . . . 389
Apex (Trinidad) Oilfields—Report ... 63
Asbestos.—Conductivity of, 191 ; Mine Acquired by Nigel (Transvaal) Goldfields, 135 ; Transvaal and Swaziland 159
Asbestos Consolidated Mines of Rhodesia... 128
Ashanti Goldfields Corporation... 71
Askania Pressure Gauge for Mines... 306
Asphalts and Allied Substances (H. A braham )... 256
Associated Gold Mines of W.A. (New)—Report... 61
Associated Tin Mines of Nigeria—Report ... 391
Australian Gold Premium ... 199, 267, 330 Ayer Hitam Tin Dredging—Report... 62
Balaghat Gold—Report ... 260
Balfour, Death of L o rd ... 194
BaU Milling... 255
Bancroft and Pelletier—Geology of Northern Rhodesia— D igest... 47, 117, 180 Bangrin Tin Dredging—R ep o rt... 392
Barima Barama Goldfields... 192
Barry-Holiinger ... 165, 230, 366 Barytes.—in California, 126 ; Treatment—Patent ... 390
Batu Caves Tin Dredging—R ep o rt... 128
Batura Monguna Tin—R ep o rt... 63
Bauxite ... 255
Bayldon, H. C.—Institution’s New Headquarters... 290
Bear River and Stewart Map-Areas, B.C. (Hanson)... 60
Belgian Congo, Geology and Mines of (G. Vibert Douglas) 337
Bendigo Goldfield, 162 ; Geophysics in ... 99
Beryl Mining Co... 96
Billiton Tin Co... 335
Birthday Honours ... 331
Bishopp and Hughes—Manganese Deposits on the Gold Coast, 68 ; Digest ... 123
Blast-Furnace O peration... 389
Blasting, Misfires i n ... 389
Boggs and Anderson—The Noranda Smelter—Digest... 245
Bolivar Venezuela Gold ... 200
Bolivia and Central Mining Corporation... 336
Borax Separation—P a te n t... 326
Boswell, Professor, Succeeds Professor W a tts ... 330
Boulder Belt, Kalgoorlie, Geology (Stillwell)—D ig e st 252
Boulder Perseverance—Report ... 391
Bowen, A. R. and Nash, A. W .— The Principles and Practice of Lubrication—R eview ... 26
Boydell, H. C.—Magnesite Deposits in Serbia ... 358
Boyer—Copper in Converter Slag—Digest ... 387
Bradford S 0 2 Process ... 255
Bradley—The Alaska Juneau Concentrator—D ig est... 254
Bradley-Fitch Process for M anganese... 127
Brakpan Mines... 266
Brammall, Dr. A.—Stantrg Mine, Yugoslavia ... 9
Brass, Season Cracking o f ... 126
Briseis Tin and General M ining... 328
Briseis Tin Mine, Future of ... 7, 135 Britannia Beach Map-area, B.C. (Jam es)... 60
Britannia Mining and Smelting Co... 101, 102, 296, 363, 364 British American Mines ... 192
British Columbia.—Exports of Concentrates, 164 ; Mineral Production of 1929, 33 ; Mining Outlook... 227
British Industries Fair ... 130, 169 British South Africa Co., 334 ; Rhodesian Progress ... 135
Britton, H. T .— Hydrogen Ions—Review . .. 157
Broken Hill, N.S.W... Broken Hill Pty. Co... Broken Hill South... Buena Vista Mining Co... Bullock, S. C.—Mineralized Zones in Eas Bulolo Gold Dredging Co... Burma Corporation.—and Income-Tax, 130 'l S 2 , 255 Q ... '295
rpmto-v-;
frica ... 269SSäsÄ'S
Bntte, Montana ... 126Bwana M’Kubwa, 199, 267 ; Metallurgy at ... 326
Byler, R. E.—Milling Practice at Fresnillo... 137
Cadmium. Antimony-Lead Alloy, 15 ; Determination of— Digest, 388 ; Electrolytic at Great Falls (Mitchell)—Digest, 323 ; -Tin-Lead A lloy... 15
Cambridge University Mineralogy Department ... 66
Camden Mines ... 392
Camp Bird—R epo rt... 62
Canadian.—Institute’s Annual Convention, 302; Mineral Output for 1929, 8 ; Mining During 1929... 363
Cape Asbestos Co., Increase of C apital... 134
Carbonyls, Manufacture of—Patents... 191, 255, 390 Cardox Blasting Device ... 255
Carnotite, Radium and Vanadium from (Doerner)—Digest .. 177
Carpenter, Sir Harold on Crystal Structure of Native Copper.. 195
Castle-an-Dinas ... 104, 166 Central Mining Corporation ... 266, 336 Central Patricia M ines... 103, 301 Centrifugal Concentration (Doerner)—D igest... 189
Chalcocite in Northern Rhodesia (A.C. S kerl)... 91
Champion Reef—R e p o rt... 327
Chandalar-Sheenjek District, Alaska (M errie)... 127
Channel Tunnel ... 194
Chemical and Metallurgical Corporation ... 136, 268 Chemie, Handbuch der Anorganischen (Gmelin)—Review .. .92, 289 Chibougamou Prospectors ... 36 Chihuahua, Mexico ,Geology ... (/)..x .f
agazme 11 k
PA G E
Chingola... 71
Chosen Corporation... 72
Christie and Jones—Influence of Wolfram on Tin-Slags, G8; D igest... 125
Chrome-Iron Sponge—Patent . .'... 255
Chromium (L. A. Smith)—D igest... 187
City Deep.—Deep Mining Method at (Lange)—Digest, 53 ; R eport... 327
Classification of Difficult Ores... 255
Classifier Efficiency ... 191
Clennell, J. E.—The Volumetric Estim ation of Lead by the Chromate Method ... 82
Climax H ay D ust T ra p ... 41
Cloncurry Copper O re... 161
Coal.—Crisis in N.S.W., 32, 98, 160, 293 ; New Field in Rhodesia, 225 ; in Ontario, 164 ; and X -rays... 59
Coal D u st(Godbert and W heeler)... 127
p a g e 130337 Coal Industry, The Economics of the (Smart)—Review Coal Measure Plants (Crookall)—Review , Dorr, J. V. N., Receives Jam es Douglas M edal... Douglas, G. Vibert—Geology and Mines of the Belgian Congo Dredge.—Bucket Practice in Malaya (Vallentine)—Digest, 120; Parts Made by Hadfislds, 369 ; Suction-Cutter (More), 5 and D ig e st... Dredging.—Deep in Malaya (F. G. Payne), 87 ; Depth Charts in (Macintyre)—Digest ... Dry Mining Investigations on R a n d ... Durban Roodepoort Deep— Report ... Duschak—Recovery of Mercury—D ig e st... 183
Dust Trap, Climax H ay ... 41
50 38230 259 288 28 Coal, Microscopical Examination of (Seyler) ... 327
Cobalt and Nickel, Separation of ... 389
Cold Lake M ines 37, 166, 302 Combe, A. D.—Cassiterite in Uganda ... 66
Complex Research Co 260, 328 Compressed Air, 190 ; Wastage of ... 389
Concentration.—Centrifugal (Doerner)—Digest, 189 ; Gravity 389 Coniaurum Mine ... 102, 165, 300, 365 Consolidated Copper ... 260
Consolidated Diamond Mines of South-West Africa... 72
Consolidated Goldfields.—and Amalgamated Mining Trust, 336 ; and Ex-Lands Nigeria, 8 ; and London Tin Syndicate, 8 ; and South African Gold Trust ... 336
Consolidated Main Reef Acquires New Claims... 134
Consolidated Mines Selection... 200
Consolidated Mining and Smelting Co. . 104, 166, 228, 298, 302 Consolidated Tin Mines of Burma, 268 ; Report... 63
Consolidated Tin Smelters ... 64, 336 Coolgardie Gold D iscovery... 267
Copper.—in Converter Slag (W artman and Boyer)—Digest, 387 ; Gold in Ores of—Digest, 389 ; Leaching Ores, 59,126 ; Lead and Zinc in U.S.—Digest, 188; Mining in Cyprus (Rickard), 195; Mining Low-Grade Ore, 190; Native (Carpenter and Fisher), 195 ; New Process to Recover (Duffield)—Patent, 59 ; in Northern Rhodesia, 255, 389 ; Oxidized Ores, Segregation Process for, 331; Price in United States, 72 ; Sulphide Ores, Segregation Process for (Lavers and Taplin)—Patent, 59 ; in the Selati District, Transvaal, 29, 360; in Southern Rhodesia... 225
Copper Cliff R efinery... 103
Cornwall.—Labour Conditions in, 166 ; Mining in 1929, 37 ; Mining and China-Clay Leases, 230, 303 ; Prospecting in, 166, 303 ; and Silicosis Scheme, 330 ; Tin Output for 1929, 303; Uranium in (Dines) ... 213
Crookall, Dr. R .— Coal Measure Plants—R eview ... 82
Crossley Oil Engines ... 236
Crown Mines—Accident, 198 ; R e p o rt... 256
Crown Reef Acquires New C laim s... 134
Cuprite, Solution of (Sullivan and Oldright)—Digest ... 254
Custer Expedition of 1874 (O’H arra)... 59
Cyprus, Copper Mining in (R ickard)... 195
Cyprus Sulphur and Copper Co... 336
Daggafontein ... 359
Davison, E. H.—Tin Lodes in Nova Scotia ... 20
De Beers Consolidated ... 72
Diamond Corporation ... 134, 392 Diamonds.—Alluvial, Slump of, 159 ; Namaqualand, 95 ; New Use for Small Stones, 72 ; in Portuguese East Africa, 360 ; Producers’ Quotas, 198 ; Transvaal Alluvial, 72, 95 ; Union O utput for 1929 ... 134
Dines, H. G.—Uranium in Cornw all... 213
Doerner.—Centrifugal Concentration—Digest, 189 ; Radium and Vanadium from Carnotite—Digest... 177
Dclcoath, 37, 105, 167 ; Future of, 3 ; Receiver A ppointed.. 231
Dome Mines ... 35, 102, 165, 229, 300, 365 Dominions Blue Asbestos Co... 159
East Africa, Mineralized Zones in (S. C. Bullock) ... 269
East African Explorers, L td... 335
E ast Geduld ... 198, 359 East Pool and Agar, 37, 302 ; Tolgus Amalgam ation... 8
East Rand Proprietary—Report ... 259
Economic Geology (Ries)—Review ... 287
Edjudina Gold D iscov ery... 362
Education of the Engineer, 197, 265, 330 ; Letters to Editor (John A. Agnew), 289 ; (C. Baring Horwood), 357 ; (H. T. Tizard) ... 357
Edwards (Waaikraal) Goldfields, L td... 224
Electrical Prospecting, The Earth-Resistivity Method of (E. Lancaster-Jones) ... 352
Electrolytic.—Cadmium at Great Falls (Mitchell)—Digest, 323 ; Iron, 126 ; Zinc, Anodes for... 255
Electrolytic Zinc Co. of A ustralasia... 33, 135 Electrolytic Zinc Co. of C anada... 228
Emeralds.—in Colombia (Rainier), 59 ; in Transvaal, 30, 96, 160 Empire.—Mining Congress, 130, 195, 277 ; U n ity ... 333
Engels Copper Deposits, C alifornia... 191
Erdbebenwellen, Theorie der etc. (Gutenberg)— Review ... 356
Esperanza Copper and Sulphur Co... 336
Ewing and Willey—Developments in Milling Practice on the Far East Rand— Digest ... 113
Ex-Lands Nigeria and Consolidated Gold Fields, 8; Report. 63 Fabulosa Mines Consolidated—R e p o rt... Falconbridge... 35, 103, 165, 229, 299, Fan Efficiency (Flugge-de Smidt)—Digest ... Fanti C onsolidated... Federation Tin Mines ... Fisher, Dr. M. S., on Crystal Structure of Native Copper . . . F lin -F lo n ... 37, 166, Flotation.—Cells Improvements—Patent, 127 ; Chemistry (Taggart), 190 ; Improvements—Patent, 127 ; of Oxidized Silver Ores—Digest, 325 ; Reagents, 126, 262 and Patent, 326 ; Selective, on Lead-Zinc-Graphite Ore (E. G. Wilkins) Flotation, The Trend of, 3rd E dition (Weiner and P alm er).. . . Flugge-de Smidt—Fan Efficiency—Digest ... Forsyth Coal Field (D obbin)... Fort Jameson L etter... Foundry S an d s... Fox-Hills and Lance Formations, Contact of (Dobbin and R eeside)... Fraser-Hertzian Wave O re-Finder... Fresnillo, 136 ; Milling Practice at (R. E. Byler)... Frontino and Bolivia (S.A.) Gold Mining— R ep o rt... Fuel-Efficiency Tests on Batch Oil Stills (Kreisinger, Argyle and R ice)... Furnas—Gas-Flow Through Broken Solids—D igest... 365 392 3777 19571 366 34960 377 59 127 13762 19060 Garms—Hayden Plant of Nevada Consolidated—D igest.. . . 325
Gas.—Bubbles in Capillary Spaces, 191 ; -Flow Through Broken Solids (Furnas)—Digest ... iqq Gau and Jameson—Metallurgical Practice at the Leeuwpoort Tin Mine—D ig est... 313
Geduld Proprietary—R eport... 258
Geevor... 104, 302 Geldenhuis Deep— Report ... 257
Gem Lake 104, 166 General Tin Industries ... 200
Geochemische Migration der Elemente (Fersm ann)... qq Geologic Structures (B. and R. Willis)—Review ... 93
Geological Bureau for South Africa ... 225
Geological Surveying, Methods in (Greenly and Williams)—
R eview ... 223
Geologische Karte de Erde—R eview ... 355
Geology of Lower Shire-Zambesi ... 191
Geology and Minerals of Ontario (Goodwin)... 60
Geophysical Investigations at Caribou, Colorado (Heiland and others)... 60
Geophysical Survey.—in Australia, 99 ; Depth Attainable by Electric Methods, 255 ; Earfh-Resistivity Method of Elect. Prosp. (E. Lancaster-Jones), 352 ; Field Test with New Seismograph (H. Shaw), 201 ; New Seismograph for (A. O. Rankine), 137 ; Seismic Propagation Paths in, 126 ; in Tasmania ... 295
Geophysik, Die Gravimetrischen Verfahren der Angewandten (Haalck)—Review... 92
Gibbs, Dr. W. E., on Metallurgy and Chemical Engineering.. 130
Gisements Pétrolifères de la Perse (Nicolesco)—Review ... 24
Globe and Phoenix ... 70, 198 Gmelin— Handbuch der A norganischen Chemie—Re view. 93, 289 Gold Coast Manganese Deposits (Bishopp and Hughes), 6 8; D igest... 123
Gold Coast Triangulation (J. Calder Wood)... 256
Gold.—Area, the Beardmore-Nezah, 390 ; -Bearing Quartz in Canada, 389 ; Bonus for Western Australia, 330 ; from Iron—Patent, 390 ; Lost in Tailings, 224 ; Metallurgy in Western Australia, 295 ; Origin of in Rand. 390 ; Premium in Australia, 199, 267, 330 ; Recovery from Dumps, 292 ; in South Africa, 390 ; Values in Copper Ores—D igest 389
Gold Production, Summarized Data of (Ridgway)... 61
Golden Horseshoe, 71 ; Tailings... 199
Gopeng Consolidated—R e p o rt... 260
Government Gold Mining Areas—Report ... 257
Gowganda Silver A rea... .,... 326
Granada, Rouyn ... 36, 103, 301, 366 Granby Consolidated Mining, Smelting and Power Co. 34, 101, 227, 228, 364 Graphite, Flotation of (E. G. W ilkins)... 349
Gray and Sharps tone—The N’Kana Concession—D igest 180
Great Boulder Proprietary... 267
Grecian Mining and Developm ent... 260
Guayana Highlands Gold... 59
Gunong Bakaü, The Tin Deposits of (F. T. Ingham) ... 151
Gypsum in 1Q28 (Santmyers and M iddleton)... 192
Haalck, Hans— Die Gravimetrischen Verfahren der Angewandten Geophysik—Review ... 92
Hadfields Dredge P a rts ... 369
Haldane, S., Proposal for Dry M ining... 30
Hall, Dr. A. L., Receives Murchison M edal... 226
Hancock, R. T.—The Relative Efficiency of Ore-Dressing Processes... 17
Harkom, J. F.—Preservation of Mine Timbers—Digest . . . . 380
Havelock Mine Acquired by Turner and Newall ... 159
Hawkesworth Detachable Bit ... 190
Hayden Gold Mines Co...; 35, 165 Hayden Plant of Nevada Consolidated (Garms)—Digest 325
Hayward— A n Outline of Metallurgical Practice—Review . . . . 287
Herberton T infield... 161, 360 Holland, Sir Sothem and Rand Future... 332
Holland, Sir Thomas, Receives Institution Gold Medal 130
Hollinger Consolidated ... 102, 165, 229, 300, 365 Hongkong Tin—R ep o rt... 62
Hooke, A. W., and Thorne, W. E .— Mining of Alluvial Deposits by Dredging and Hydraulicking—R eview ... 24
Horton-Windsor District, N.S. (Bell)... 327
Horwood, C. Baring—The Education of the Engineer ... 357
Howe Sound Co 228, 296 Howey Mine 103, 165, 301, 366 Hudson Bay Mining and Smelling Co 104, 166, 301 Hughes and Bishopp—Manganese Deposits on the Gold Coast, 68 ; Digest ... 123
Hum-mer Electric Screen, Type 60 ... 238
Huronian Mining and Finance Co... 37
Hydrautom ats... 59
Hydrogen Ions (Britton)—R eview ... 157
Idris Hydraulic T i n ... 336
Ignatieff, A.—Magnesite Deposits in Serbia ... 217
Imperial College.—Annual Dinner, 2 ; Union and Hostel 66
Income-Tax Appeal and Burma Corporation... 130
Indian.—Budget for 1930-31, 132, 194; Mineral Industry, 326 Indian Copper Corporation... 336
Industrial and General Administration (Fayol)... 256
Ingham, F. T.—The Tin Deposits of Gunong Bakau ... 151
Institution.—Bayldon, H. C., on New Headquarters of, 290; Gold Medal for Sir Thomas Holland, 130 ; Professor J. G. Lawn Elected President of, 6 6; Proposed Change of Headquarters ... 131
International Nickel Co 35, 164 Inyantue Coalfield... 225
Iron.—Ore in Newfoundland, 126 ; in Southern Rhodesia, 360 ; Sponge in C anada... 255
Jack N utt Mine ... 37
Japanese Gold Embargo L ifte d ... 72
Jervois Range, Central Australia... 295
Jones and Christie—Influence of Wolfram on Tin-Slags, 6 8; D igest... 125
Jos Tin Area (Nigeria)—Report ... 128
Junner, Dr. N. R.—Geology and Mineral Resources of Sierra Leone... 73
Kaduna Prospectors ... 335
Kaduna Syndicate ... 335
Kafue Copper... 267
Kagera (Uganda) Tinfields, 335 ; Report ... 327
Kalgoorlie: Geology and Ore Deposits of the Boulder Belt (Stillwell)... 192
Kampar Malaya Tin D redging... 72
Kamunting—Report... 62
Kay Yew (Kinta Valley) Tin M ines... 135
Kepong D redging... 8
Kevin-Sunburst Oil Field, The (Collier) ... 127
Kieselguhr in South A frica... 160, 226 Kinta Tin M ines... 336
Kirkland Lake M ine... 36, 103, 165, 230, 300, 366 Klorex Syndicate... 64
Kolar Goldfield.—Rockbursts, 136 ; Strike, 168 ; Ventilation 255 Kootenay Florence Mining Co... 162
Kootenay King Mines ... 101
Kootenays Power and Light Companies ... 34, 100 Lake Shore Gold ... 36, 102, 165, 229, 300, 365 Lake View and Star, 7, 71 ; R ep o rt... 61
Lam briggan... 38, 166 Lancaster-Jones, E.—The Earth-Resistivity Method of Electrical Prospecting... 352
Lange—Deep Mining Method at City Deep—Digest... 53
Langlaagte Estate—Report... 258
L aterite... 191
Lavack M ine... 35, 103 Lawford, E. G., on Stoping Problems in M exico... 264
Lawn, Prof. J. G., Elected President of the Institution 66 Lawn H ills... 32, 99, 294 Lead. Antimony-Cadmium Alloy, 15 ; Assay, 191 ; Copper and Zinc in U. S.—Digest, 188 ; Production (L. A. Smith)— Digest, 189 ; Refining at Bunker Hill, 190 ; Tetra-Ethyl in Petrol, 330 ; -Tin-Cadmium Alloy, 15 ; Volumetric Estim a tion of by the Chromate Method (J. E. Clennell)... 82
Leeuwpoort Tin Mine Metallurgical Practice (Gau and Jameson)—Digest ... 318
Lena Goldfields, 2, 66 ; Arbitration with Soviet, 136 ; Con cession Annulled, 268 ; Report... 63
Levant Mine... 104
Lightning Mine T rust... 64
Lincoln County, Nevada (Gillson) ... 256
Locker, Thomas & Co.’s Screens... 233
Locomotives, Permissible Storage-Battery, and Power Trucks (Ilsley, Gleim and Brunot) ... 256
London Nigerian Power Co... 128
London Tin Syndicate.—and Anglo-Bauchi, 8 ; and Con solidated Gold Fields, 8 ; and Mongu... 8
PA G E
Lonely Reef Gold Mining—R e p o rt... 391PAGE
Lower Bisichi (Nigeria) Tin Mines—Report ... 192
Lubrication, The Principles and Practice of (Nash and Bowen)—Review... 26
Lucky Jim Mines. ... 101
Macintyre, J. M.—Depth Charts—Digest ... 382
McIntyre Porcupine... 35, 102, 229, 300, 365 McVittie-Graham ... 165, 300 Magnesite.—in Canada, 191; Deposits in Serbia (A. Ignatieff) 217 and (H. C. Boydell) ... 358
Magnetic Separation, 126 ; Patents, 127, 326, (tw o )... 390
Malaya.—Control of Tin Companies in, 194 ; Deep Dredging in (F. G. Payne), 87 ; Electric Power in, 255 ; Mineral Products of, 226; and Tin P rice... 295
Malaya Consolidated—Report... 328
Malayan Tin Dredging—Report ... 62
Manganese. — Bradley-Fitch Process for—Patent, 127 ; Deposits on the Gold Coast (Bishopp and Hughes), 68 and Digest, 123 ; Treatment of Ore by Volatilization— Digest, 325 ; in U.S. in 1929—Digest... ... 387
Manganese C orporation... 160
Manganese Fields, L td... 160
Manitoba Flin-FIon... 35, 302 Man tell, Dr. C. L.—Tin, Its Mining, Production, Technology and Applications—Review ... 91
Marriott, Gordon,—Testing Alluvial Tin D eposits... 91
Mason and Barry—R e p o rt... 200
Mavoc, L td... 335
Mayfair Mine ... 70
Mercury, Recent Developments in the Recovery of (Duschak) —D igest... 183
Meru Tin—Report... 62
Messina C opper... 326
Metal Prices.—Effect on Australian Mines, 295 ; Fall of, 262 ; Metallurgical Analysis, Select Methods of (Naish and Clennell) —R eview ... 167
Metallurgical Practice, A n Outline of (Hayward)—Review ... . 287
Metallurgical Practice at Leeuwpoort Tin Mine (Gau and Jameson)—Digest ... 318
Metallurgy.—and Chemical Engineering, 130 ; Photo-Electro 190 Metals, Effect of Cold W ork on . Metropolitan-Vickers Turbo Generator . Mexican Corporation—Report . Mount Isa ... 31, 98, 161, 268, 293, 335, 360 Mount Morgan ... . . . 71, 128, 335 ... 336
... 327
PA G E Mufulira Copper Mines ... Murex Acquires Alloy Welding Processes . Mysore Gold—Report... 305 59 Meyer and Charlton—R ep o rt... 25961 Mica (Spence)... 327
Mica Fields of Rhodesia... 260
Microscope in Ore-Dressing—D ig est , ... 389
Mill Close Mines... 8
Milling Practice, Developments in, on Far East Rand (Willey and Ewing)—Digest ... 113
Mindola Bore-H oles... 267
Mine.—Dust, 326; Timbers, Preservation of (Harkom)— - Digest, 380 ; Workings, Filling Disused—P a te n t... 390
Mine Rescue Apparatus: The S.M .R.B. Gas Mask (Katz and Grice)... 192
Mineral Deposits of the Union of South Africa (Reinecke and W agner)... 327
Mineralogy : Elements of 22nd Edition (Rutley)—Review . . . 28
Minerals Separation—Litigation, 226 ; Plant at S.R.B.M. 198 Mining.—Irregular Deposits (Wilson), 264 ; Laws, Gilbert Stone on, 69 ; Method at City Deep (Lange)—Digest, 53 ; Methods in Mexico (Lawford), 264 ; Open-Cast, 389 ; Plant in F.M.S., 296 ; Revenue in South A frica... 226
Mining Methods (C. A. Mitke)—R eview ... 264
Mining Trust and Lawn Hills Concessions... 32
Mining Trust of Northern Rhodesia... 64
Naish and Clennell—Select Methods of Metallurgical Analysis— R eview ... Namaqualand Diamonds ... Naraguta Korot Areas—Report ... Naraguta (Nigeria) Tin Mines—Report... ; * Nash, A. W., and Bowen, A. R.—The P r i n c i p l e s and Practice of Lubrication—R eview ... National Mineral Development... N’Changa Copper M ines... New Amianthus Asbestos Co... New Goldfields of Venezuela Reduces Capital ... New Guinea Goldfields ... New Kleinfontein, 6 ; R epo rt... New Nigel A sbestos... New State Areas—Report ... New Steyn Estate Gold M ines... Nickel.—and Cobalt, Separation of, 389 ; -Copper Matte Refining—P a te n t... Nicolesco, C.-P.—Gisements Pétrolifères de la Perse—Review . Nigel (Transvaal) Goldfields and Australian A sbestos... Nigeria.—Rents on Mining Leases, 71 ; Steam Shovel in (Sinclair), 331 and Digest ... Nigerian Consolidated Mines—Report... N’Kana Concession (Gray and Sharpstone)—D igest... N ’Kana Mine ... Noble Five M ines... 163,
Non-Ferrous Metal Products... Noranda, 36, 103, 190, 230, 300, 366 ; Smelter (Boggs and Anderson)—D ig est... North Broken H ill... Northern Rhodesia Power Corporation ... Northern Tavoy Tin Dredging—Report ... Nova Scotia, Tin Lodes in—E. H. Davison ... Novo Brdo Co... -... N undydroog—Report... 15726 6363 12826 334159 200268 328 259 257 334 127 24 135 38463 180 199 22764 24533 128 64 208 260 32339 Mint, Royal, Report for 1928 ... 3
Mirrlees, Bickerton and Day Oil Engine... . ... Mitchell—Electrolytic Cadmium at Great Falls—Digest. Mitke, C. A — Mining Methods—Review... 264
Modderfontein B—Report ... 256
Modderfontein Deep—Report ... 258
Mongu and London Tin Syndicate... 8
More—The Suction Cutter Dredge, 5 ; D ig est... 50
Morkwa, L td... 267
Oil Mining Syndicate... 260
Oil Prospecting in A ustralia... 31, 294, 361 Oldright and Sullivan—Solution of Cuprite—D igest... 254
Onverwacht Platinum Co... 159, 326 Ooregum Gold ... 199
Ore.— -Dressing, Microscope in—Digest, 389 ; -Dressing Processes, The Relative Efficiency of—R. T. Hancock, 17 ; -Dressing, Trend of in U.S., 389; Reserves, Valuation of (Truscott)—D ig e st... 313
Oriental Consolidated Mining—Report ... 392
Oroville Dredging—Report ... 392
Owen Lake Mining and Development Co... 227
Palestine and Transjordan Mineral Resources (B lake)... 327
Panama Corporation... 72, 200, 268 Pao Iron-O re... 191
Papua, Anglo-Persian Oil Co. in ... 99
Paradise M ine... 101
Patino Mines and Enterprises ... 200
Payne, F. G.—Deep Dredging in Malaya ... 87
Pelletier and Bancroft—Geology of Northern Rhodesia— D igest... 4 7, 117, 180 Peña Copper Mines—Report ... 392
Penawat (Malaya) Tin Dredging Acquires New Property, 136 ; R eport... 192
Pend Oreille District, Northern Idaho (Gillson) ... 256
Pengkalen—Report... 391
Perak River Hydro-Electric P ow er q 227 Perú, Geologie von (Steinmann)—Review... 27
Petaling Tin . .. ... 135
Phthisis Compensation in South Africa... 39
Physioigraphical Evolution of Britain— (Wills)—Review 158
Pirow, Dr. Hans, and the Geld Mining Industry... 29
Placer Mining in B.C. (Galloway)... 256
Platinum Mining and Metallurgy in Transvaal 290, 326PAGE
Potassium N itrate... 326
Potgietersrust Platinums 159, 267 Premier Diamond Co... 6
Premier Gold Mining Co... 34, 101, 227, 297 Pressure Gauge for Mines, Askania... 306
Prosperity-Porter-Idaho ... 227
Puket Tin D redging 268, 328 Pumps, High-Lift, 322; Wallwin G rav el... 369
Pyrites Future ... 266
Pyritic Ores, Chlorination of—Patents (3 )... 127
Quarrying.—and the Countryside, 262 ; Wire Saw in ... 126
Queensland M ining... 98, 292 Rabble Corrosion in Roasting Furnaces... 59
Radio-Active Ores in Cape Province... 292
Radium.—in Ontario, 389 ; Ore in Canada, 126 ; and Vanadium from Camotite (Doerner)—D igest... 177
Rambutan—R e p o rt... 62
Rand.—Dividends for 1929, 6 ; Dry Mining Investigations on, 30 ; Future of, 332 ; Gold Metallurgy, 326 ; Gold, Origin of, 390 ; Gold Output, 359 ; Labour, 6, 70, 134 ; Low- Grade Ore Problem, 291, 332 ; Milling Practice Develop ments (Willey and Ewing)—Digest, 113 ; Mines Increasing Lives, 96 ; Refinery O u tp u t... 95
Rand Mines, L td... 198
Randfontein Estates—Report... 257
Rankine, A. O.—New Seismograph for Geophysical Survey . 147 Rantau Tin Dredging—R eport... 128
Reeves-McDonald M ines... 100, 227, 228, 364 Refrigerant, New... 262
Rezende Mines.-—Repayment ol Capital, 135 ; R epo rt 327
Rhodesia.—Asbestos in, and Turner and Newall, 7 ; Chalcocite in Northern (A. C. Slcerl),91 ; Copper Deposits of Northern, 255 ; Customs Union, 98 ; Geology of Northern (Bancroft and Pelletier)—Digest, 47, 117, 180 ; Iron Ore in Southern, 360 ; Labour in, 70, 98 ; Prospecting in Southern, 334 ; Railway Construction in, 2, 97, 194 ; Roads of Northern, 96; Vanadium in ... 292
Rhodesia-Katanga Co 199, 267 Rhodesian Anglo American ... 334
Rhodesian Congo Border Concession ... 7, 135, 199, 267 Rhodesian Selection Trust ... 335
Rickard, T. A, on Copper Mining in Cyprus... 195
Ridgedome 102, 165 Ries— Economic Geology—R eview ... 287
Rio Tinto 190, 200 Roan Antelope Copper M ines... 7, 326, 334 Robins Screen... 232
Robinson Deep, 70 ; Amalgamated with Village Deep, 6, 134,225; Report... 258
Rock Bursts in Lake Superior Mines (Crane)... 61
Rockbursts ... 326
Roe, Harrison—Aerial Ropeways ... 281
Roodepoort United ... 334
Roper River Land and Minerals Co... 335
Rose Deep—R ep o rt... 258
Rosebery (Tasmania) Concentrator... 255
Rotary Sm elting... 392
Russia and American Engineers ... 133
Rutley, F .— Elements of Mineralogy, 22nd Edition—Review. 28 St. John del Rey—Report... 328
San Francisco Mines of Mexico... 72
Sand Specifications ... 191
Santa Gertrudis, 136 ; R e p o rt... 62
Scraper Practice on R a n d ... 326
Seismograph.—Field Test with New (H. Shaw), 201 ; New, for Geophysical Survey (A. O. Rankine)... 147
Selukwe Gold Mining and Finance Co... 267, 298 Serbian Magnesite (A. Ignatieff) 217 and (H. C. Boydell) . . . . 358
Shaft.—Sinking at North Star, 255 ; W idening... 59
Shamva Mines, 70 ; Closed Down ... 135
Sharpstone and Gray—The N’Kana Concession—Digest . . . . 180
Shaw, Capt. H.—A Field Test with a New Seismograph . . . . 201
Sherritt-Gordon ... 37, 104, 166, 301, 366PAGE Siamese Tin—Report ... 392
Sierra Leone, Geology and Mineral Resources (N. R. Junner) 73 Silica Refractories ... 126
Silicosis.—Committee Formed in England, 156 ; Home Office Scheme and C ornw all... 330
Silver, 3, 330 ; Flotation of Oxidized Ores—Digest ... 325
Silversmith Mine ... 163
Simmer and Jack, 6 ; New Shaft, 266 ; Report... 258
Sinclair, W. E.—Steam Shovel in Nigeria 331 and Digest . . . 384
Siparia Trinidad Oilfields... 268
Skerl, A. C.—Chalcocite in Northern Rhodesia ... 91
Smart— The Economics of the Coal Industry—Review ... 288
Smelting Improvements—Patents 255, 326 Smith, L. A.—Chromium—Digest, 187 ; Lead Production— Digest ... 189
Sotnaliland, Report of Agricultural and Geological Department 60 Sons of Gwalia ... 335
South Africa.—Geological Survey in, 291 ; Mineral Output for 1929... 159
South African Gold T ru s t... 336
South Crofty, 37, 38, 104, 302 ; Report ... 328
South Soanesville A sbestos... 135
South Tigon M ining... 192
Southern Rhodesia Base Metals Corporation ... 70, 198 Southern Rhodesian Geological Survey Bulletin No. 13... 127
Springs Mines... 266
Stanley Siscoe Extension Mines, L td... 103
Stantrg Lead-Zinc Mine, Yugoslavia (Dr. A. Brammall). . 9, 222 Steam Nozzles ... 191
Steel.—Manganese-Carbon Relations in, 255 ; Production in Great Britain ... 66
Steel Pit Props (Ashley, Dixon and Hogan) ... 327
Steinmann, G.— Geologic von Peru—Review ... 27
Stillwell—Geology of the Boulder Belt, Kalgoorlie—Digest .. 252
Stone, Gilbert, on Mining L aw s... 69
Stopes, Mining S teep ... 190
Stoping Problems in Mexico (Lawford)... 264
Straits Trading Co. Reduces C apital... 199
Subsidences at Rio T into... 190
Suction-Cutter Dredge (More), 5 ; Digest... 50
Sudbury Basin, 103 ; Geology... 255
Sudbury Offsets... 165, 300 Sullivan and Oldright—Solution of Cuprite—Digest... 254
Sulphide Corporation, 295 ; Report ... 61
Sulphides, Roasting of—P a te n t... 59, 390 Sulphur Recovery from Gases—P atent... 191
Sundberg Method of Geophysical Prospecting ... 255
Sungei Besi... 7
Sungei Kinta—Report ... 328
Sungei W ay Dredging—R ep o rt... 128
Surveying as Practised by Civil Engineers and Surveyors, 8th Edition (Whitelaw)—Review ... 27
Swaziland, Forbes R eef... 127
S y lvanite... 36, 102, 230, 300 Tadanac Smelter F u m e ... 164
Taiping Tin Dredging... 71
Taku River Area, Report on (Mandy)... 192
Tanganyika, Railways in (Gillman)... 60
Tanganyika Territory, Soil in Kigoma and Bukoba (Teale) .. . 127
Tanjong Tin D redging... 336
T an talu m ... 190
Taquah and Abosso, Reduction of Capital... 135
Tasmanian Geophysical Results ... 295
Taylor—The Allenby Concentrator, B.C.—Digest ... 56
Teck-H ughes... 36, 102, 165, 230, 300, 365 Tekka-Taiping—Report ... 391
Telluride Gold M ines... 36, 300 Temengor Tin Mining... 199
Textbook of Geology Part I (Pirsson) ... 60
Tharsis Sulphur and Copper... 200
Thorne, W. E., and Hooke, A. W .— Mining of Alluvial Deposits by Dredging and Hydraulicking—Review... 24 Tilmanstone Ropew ay... 235, 255
Tin.—Boring Alluvial in Malaya, 59 ; Deposits of Gunong Bakau (F. T. Ingham), 151 ; Discovery in Western Aus
tralia, 362 ; Electrolyser for—Patent, 390 ; Extraction from Low-Grade Ores—Patent, 255; -Lead-Cadmium Alloy, 15 ; Lodes in Nova Scotia—E. H. Davison, 20 ; Ore in Malaya, 226 ; Restriction, 4, 104, 136, 166, 330, 367 ; Smelters, Fusion o f ... 4, 64 Tin.— Its Mining, Production, Technology and Applications
(Mantel!)—R eview ... 91
Tin Producers’ A ssociation... 66, 262 Tizard, H. T.—The Education of the Engineer ... 357
Tocuyo Oilfields of Venezuela ... 136
Tolgus, 37 ; Amalgamation with East Pool ... 8
Towagmac Exploration Co... 299
Trade Conditions... 67
Transvaal.—Alluvial Diamonds, 72 ; Copper, 360 ; Emeralds, 30, 160 ; Platinum M etallurgy... 290
Treadwell Yukon Co... 103, 229, 365 Tronoh Mines... 7, 268 Truscott—Valuation of Ore Reserves—Digest ... 313
Turner and Newall. —Acquires Quasi-Arc, 136 ; and Rhodesian Asbestos, 7 ; and Transvaal A sbestos... 159
Tweefontein United Collieries ... 134
Uganda, Tanganyika and Kenya, Joint Geological Survey for 130 Union C orporation... 266
United Diamond Fields of British G uiana... 268
United Mining and Chemical Industries ... 260
United States, Mineral Output for 1929 ... 136
Uranium in Cornwall (H. G. Dines) ... 213
Urgerica Syndicate ... 392
Urquhart, L., and American Engineers in Russia ... 133
Vallentine—Bucket Dredge Practice in Malaya—Digest 120
Valuation.—of Ore-Bodies, 326 ; of Ore Reserves (Truscott)— D igest... 313
Valve, New Type of Rubber ... 368
Van Ryn Deep—R e p o rt... 257
Vanadium in Rhodesia... 292
Venezuela G o ld ... 59
Ventilation.—Fan Efficiency in (Flugge-de Smidt)—Digest, 377 ; on Kolar Goldfield... 255
Ventures, L td 36, 102, 302 Victoria Prospecting Co... 334
Village Deep, 70 ; Amalgamated with Robinson Deep, 6, 134, 225 ; Depth of, 359 ; Reduction of Capital, 266 ; Report... 257
Vipond Mine ... 102, 165, 229, 300, 365 Vogelstruisfontein Claims ... 134
p a g e W aaikraal Mine Closed... 224
Wagner, Dr. P. A., Death o f ... 30
W aihi Gold Mining Co... 268
W aite-Ackerman-Montgomery... 36, 301, 366 Walker, Edward, Retirement of ... 2
Wallwin Pumps ... 369
W artm an—Copper in Converter Slag—D ig e st... 387
Waterval (Rustenberg) Platinum Co... 29, 334 W atts, Retirement of Professor... 330
West African Diamond Syndicate... 267
West Kootenay Power and Light Co... 228
West Rand Consolidated—Report ... 259
West Springs... 266
Wheal K itty... 38, 105 Wheal R e e th ... 72, 104 Whitelaw, J .— Surveying as Practised by Civil Engineers and Surveyors, 8th Edition—Review ... 27
W hitworth Mining and Finance Co... 161, 360 Wilkins, E. G.—Selective Flotation on Lead-Zinc-Graphite O re... 349
Willey and Ewing—Development in Milling Practice on the Far-East Rand—Digest... 113
Williams, Harvey & Co... 200
Willis, Bailey and Robin— Geologic Structures—Review ... 93
Wills, L. J .— The Physiographical Evolution of Britain— R eview ... 158
Wilson, E.G., on Bottom -Slicing... 264
Wiluna Gold Corporation... 71, 335 Winding.—Engine for City Deep, 126 ; at Great Depths . . . 326
Winnipeg River Tin M ines... 104, 366 Witwatersrand Deep—Report ... 259
W itwatersrand Gold—R eport... 258
W itwatersrand University Engineering Laboratories, 326; Honorary Degrees... 262
Wolfram, Influence on Tin-Slags (Christie and Jones), 68 ; D igest... 125
Woman River and Ridout Map-Areas, Ontario (Emmons and T hom son)... 60
Wright-Hargreaves ... 35, 102, 165, 230, 300, 365 Wyoming, Hanna and Carbon Basins, Geology, etc., of {Dobbin and others) ... 60
Yerranderie Silver Field, The (H arper)... 327
Yugo-Slavian Concessions... 328
Zambesi, Geology of Lower Shire- ... 191
Zinc. Blende Roasting—Patents, 191, 256, 390 ; Concen trate (Australian) Contract Expires, 268 ; Lead and Copper in U.S.—Digest ... 188
Zinc Corporation ... 267
