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Economic Geology and the Bulletin of the Society of Economic Geologists 1908: Vol 3 Index

Economic Geology and the Bulletin of the Society of Economic Geologists 1908: Volume 3 , Issue Index. Digitized from IA1518511-02 . Previous issue:…

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Index To

Volume Iii.

[Note.—In this index the titles of principal papers and the headings of departments, as Discussion, are in italics.]

Actinolite, 624

Addicwell gray shale, 596

Adherence test, for coking coals, 265; method of conducting, 2

Adhesion scale, for testing coking coal, 267

Adirondack magnetite iron ores, 664

Alaskitic "aaa 691

Albite, 23

Algz, in formation of coal, 298

Allochthonous theory, of coal formation, 293

Alluvial deposits, of China, 9

Alteration, of rocks, 374; by hot solutions, 381; by weathering, 381 ; pneumatolytic, in Cornwall, 374

Alunite, 616

American Cement Company, view of plant of, 65

American mining congress, proceedings, 445

Ammonia, in Scotch oil shales, 583,

Analyses (see Chemical analyses)

Andalusite, 624

Anderson, C., analysis of torbanite,

Andesite, 469, 690

Andrews, E. B., on the Pittsburg coal, 183

Andrews, E. C., discussion by, 643

Antimony, in Mexico, 683

Aplite, 603

Aquamarine, 624

Archean, so-called, of China, 6

Arkansas, A new discovery of peridotite in (Purdue, 525)

Arnold, R., review of paper by, 232

Arnold, R., and Anderson, R., review 'of papers by, 231, 232

Athens Co., Ohio, section in, 190

Autochthonous theory, of coal formation, 294

Bacteria, action on vegetable tissue, Bagg, R. M., Jr., Some copper de-

posits in the Sangre de Christo Range, Colorado, 739

Bain, H. F., Geology of Illinois petroleum fields, 481; reviews by, 231 441, 445, 657; on relations of minerals, 614

Ballagan beds, 591

Barite, 616

Barlow, A. E., on diabase-gabbro in Ontario, 601

Barracks shaie, 507

Basal conglomerate, 41

Bassler, R. S., Cement materials of western Virginia, 503

Bayley, W. S., reviews by, 155, 157, 438; discussion by, 535

Bearpaw shale, 89-06

Beck, R., on ore deposits, 424, 478; at vein intersections, 153; of Andreasberg, 331

Becker, G. F., on filtration of mineral solutions, 750

Bell, R., on cobalt conglomerate, 608

Bellaire, Ohio, section near, 186

Belle Isle, Newfoundland, iron ores of, 286

— Co., Ohio, sections in, 186,

Belt. Mont., section of Kootenai formation at, 80

Bersbo mine, 6390

Bertrand, C. E., on formation of coal, 206, 207

Bibliography, of the Scotch oil shale fields, 5

Big Elk Creek, section of Montana group, OI

Bighorn basin region, Wyo., Cloverly formation of,

Binny sandstone, 597

Bjorkstedt, W., analysis of iron ore, 472; of garnet, 473; of limerock,

Bladen, Ohio, section near, 196 Blatchley, W. S., on petroleum in Illinois, 482, 487 Bleininger, A. V., review by, 658 Boehmer, M., discussion by, 337 Bog ores, of Quebec, 287 Boghead mineral, 584 Bonanza, defined, 144

Index To

Volume Iii.

[Note.—In this index the titles of principal papers and the headings of departments, as Discussion, are in italics.]

Actinolite, 624

Addicwell gray shale, 596

Adherence test, for coking coals, 265; method of conducting, 2

Adhesion scale, for testing coking coal, 267

Adirondack magnetite iron ores, 664

Alaskitic "aaa 691

Albite, 23

Algz, in formation of coal, 298

Allochthonous theory, of coal formation, 293

Alluvial deposits, of China, 9

Alteration, of rocks, 374; by hot solutions, 381; by weathering, 381 ; pneumatolytic, in Cornwall, 374

Alunite, 616

American Cement Company, view of plant of, 65

American mining congress, proceedings, 445

Ammonia, in Scotch oil shales, 583,

Analyses (see Chemical analyses)

Andalusite, 624

Anderson, C., analysis of torbanite,

Andesite, 469, 690

Andrews, E. B., on the Pittsburg coal, 183

Andrews, E. C., discussion by, 643

Antimony, in Mexico, 683

Aplite, 603

Aquamarine, 624

Archean, so-called, of China, 6

Arkansas, A new discovery of peridotite in (Purdue, 525)

Arnold, R., review of paper by, 232

Arnold, R., and Anderson, R., review 'of papers by, 231, 232

Athens Co., Ohio, section in, 190

Autochthonous theory, of coal formation, 294

Bacteria, action on vegetable tissue, Bagg, R. M., Jr., Some copper de-

posits in the Sangre de Christo Range, Colorado, 739

Bain, H. F., Geology of Illinois petroleum fields, 481; reviews by, 231 441, 445, 657; on relations of minerals, 614

Ballagan beds, 591

Barite, 616

Barlow, A. E., on diabase-gabbro in Ontario, 601

Barracks shaie, 507

Basal conglomerate, 41

Bassler, R. S., Cement materials of western Virginia, 503

Bayley, W. S., reviews by, 155, 157, 438; discussion by, 535

Bearpaw shale, 89-06

Beck, R., on ore deposits, 424, 478; at vein intersections, 153; of Andreasberg, 331

Becker, G. F., on filtration of mineral solutions, 750

Bell, R., on cobalt conglomerate, 608

Bellaire, Ohio, section near, 186

Belle Isle, Newfoundland, iron ores of, 286

— Co., Ohio, sections in, 186,

Belt. Mont., section of Kootenai formation at, 80

Bersbo mine, 6390

Bertrand, C. E., on formation of coal, 206, 207

Bibliography, of the Scotch oil shale fields, 5

Big Elk Creek, section of Montana group, OI

Bighorn basin region, Wyo., Cloverly formation of,

Binny sandstone, 597

Bjorkstedt, W., analysis of iron ore, 472; of garnet, 473; of limerock,

Bladen, Ohio, section near, 196 Blatchley, W. S., on petroleum in Illinois, 482, 487 Bleininger, A. V., review by, 658 Boehmer, M., discussion by, 337 Bog ores, of Quebec, 287 Boghead mineral, 584 Bonanza, defined, 144

of ale

na

re,

ck,

'

Index. 777

Borax beds, in the Andes, 652

Bornite, 631-635

Bownocker, J. A., on oil sands, 488

Bownocker, J. A., and Condit, D. D., The Pomeroy coal in Ohio, 183

Branner, J. C., and Brackett, A. N on peridotite in Arkansas, 526

Bridgeport sand, 484

Bridger, Mont., section of Montana group at, 94

Brief review of the mining industry of Mexico (Ordofiez), 677

Briggs, L. J., on filtration of soil solutions, 750

British Columbia, iron ores of, 278

Brock, R. W., on magnetites, of Ontario, 279

Brooks, A. H., on placers, 13

Brown ore type, of iron ores, 286

Brown, C. N., section by, 187

Brown, C. S., The lignite of Mississippi, 219; review of paper by, 164

Broxburn marl, 596

Broxburn shale, 506

Buchanon sand, 484, 487

Buckley, E. R., on iron ores, of Missouri, 285

Buena Vista shale, 511

Bunches, defined, 144

Burchard, E. F., on Clinton ores, of Alabama, 285; review by, 553

Burdiehouse limestone, 591, 597

Burrows, G., analysis of graywacke slate by, 608

Burrows, J. S., review of paper by,

Butler, G. M., review of paper by,

Butte, Mont, ore shoots at, 326

Calcareous replacement deposits, 497

Calciferous sandstone, of Scotland, 580, 591

Campbell, M. R., A practical classification for low-grade coals, 134; on amount of coals in Appalachians, 27; on the classification of coals, 135; on transformation of vegetable matter into coal, 137; on coal sampling, 180

Canada, The iron ores of (Leith), 276 f

Carbonate type, of iron ores, 286

Carter, O. C. S., on copper mines,

Casey sand, 488 Catlett, C., analyses by, 516 Celestite, 616

Cement, natural, 71, 522 (see also Portland cement, hydraulic cement)

Cement, testing of, 71

Cement and Portland cement materials of ae (Crider), review of,

Cement belt a Lehigh and Northampton Counties, Pa., geology of (Peck), 37

Cement industry, 57; in Virginia, 523

Cement materials of western Virginia (Bassler), 503; of Mississippi, 553

Cement rock, of Lehigh district, character of, 47; distribution of, 55; origin of, 55

Chalcocite, 626, 630-635

Chalcopyrite, 631-635

Chamberlin and Salisbury, on fusion,

Chance, Wyo., section of Montana group near,

Chemical analyses ash of oil shale, 588; cement rock, 49, 513; clay, red residual, 116; coal, 18, 25-26, 189- 197, 310; dolomite, 42; garnet, 473; gray wacke slate, 608; ilvaite, 474; om ore, 472; kaolin, 114; lignites,

aaa limerock, 477; limestone, 43, 513- 517, 521; monzonite porphyry, 387; paleozoic shales, 608; torbanite, 586

Chimneys, defined, 144

China, mineral yc ga of (Willis), I, 118; mining in, 1; physiography Of,4° compared as os geologic conditions with 4. 5o map of; 6, 126; petroleum in, 125 (see also North China and South China)

Church, J. A., discussion by, 428

Chute, 'defined, 144

Claggett formation, 80-06

Clapp, C. H., Recent literature on economic geology, 100, 167, 252, 348, 7

Clark, F. W., review of paper by, 243

Classification, genetic, of minerals (Emmons), 611

Classification, practical, for lowgrade coals (Campbell), 134; discussion of, 647

Clay, red residual, analysis of, 116

Clay deposits, of Dry Branch region, Ga., structure of, 111; origin of,

Clays, in China, 29; of Mississippi 'Logan), review of, 230

Cleavage, in coal, 139

778 Index,

Clifton-Morenci porphyry, composition diagrams of, 390-396; alteration of, 393

Clinton sedimentary type, of iron ore,

"Hovery formation, 84-87; sections of, 8 85

Coal, analyses of, 18, 25-26, 189-197, 309; in China, 5-27, 32-36, 120, 128; amount of, in China, 27; in Appalachians, 27; anthracitization of, 315; illustrations of, 138 (pl. 4); fracture of, on drying, 139; metamorphism of, 314; Pomeroy, in Ohio, 183; Redstone, 183; weathering of, 137

Coal, the formation of, Some problems of (White), 292

Coal fields, of China, 8, 15-27; of Manchuria, 25

Coal measures of China, 8-9

Coalification, 303, 311

Coal-mine sampling, 441

Coals, of Kootenai formation, 86

Coals, coking, a practical test for (Pishel), 265

Coals, low-grade, A practical classification for (Campbell), 134

Cobalt, occurrence in Ontario, 600

Cobalt-silver ores of northern Ontario, Origin of (Hore), 599

Coking coals, a practical test for (Pishel), 265

Coking tests, table of results, 268

Coldre, L., on deep wells, in China,

Coleman, A. P., on glaciated pebbles, in Cobalt conglomerate, 607

Coleman, A. P., and Willmott, A. B., on Michipicoten iron ores, 283

Contact deposits, in Mexico, 680

Copper, The relation of, to pyrite in the lean copper ores of Butte, Montana (Simpson), 628

Copper, at Mineral, Idaho, 492; in China, 129; in Mexico, 683

Copper and gold mine, Mt. Chalmers, Queensland, 246

Copper deposits, Newark, of south- — Pennsylvania (Wherry),

Copper deposits in the Sangre de Christo Range, Colorado (Bagg),

Copper deposits of Kasaan Peninsula, Alaska (Wright), 410

Copper handbook, vol. VII. (Stevens), review of, 542

Copper mines, early, 727; localities of, 728

Copper ores, of Cornwall, occurrence of, 372; genesis of, 377; of Butte, Mont., 628-636 ; of Kasaan Peninsula, Alaska, 414; of Scandinavia, 637

Copper Queen intrusion, 694

Copperopolis, Cal., ore deposits of,

Cornwall, Geological aspect of the lodes of (MacAlister), 363

Cornwall, antiquity of mining in, 363; geological description of, 365; stratigraphical table of, 368; lodes of, 360; tin and copper ores of, 364, 369; silver-lead veins of, 378

Coromandel subdivision, Auckland, geology of, 438

Covellite, 626

Cow Creek, Mont., section of Montana group on, 89

Crider, A. F., review of paper by,

Cross, W., on Montana group, 87; on granites of the Rocky Mts., 742 Crystallization, order of, in rocks of Velardefia, 701, 708, 709 Cuencamé valley, Mexico, 688

Dale, T. N., review of paper by, 157

Darton, N. H., on the Cloverly formation, 84

Davis, C. A., review of paper by, 248; on peat bogs, 316

Deformation, in Lehigh district Pa.,

De Launay, on ore shoots, 154

Depth, of copper ore, 640

Density, porosity, and moisture, The relation of, to the specific volume of ores (Mead), 319

Deposition, of ores, at Mineral, Idaho, 501

De Wolf, F. W., review by, 164

Diabase, 692

Diabase-gabbro, 600

Diagram, illustrating relation of density, porosity, and moisture, to specific volume of ores, 319 (pl. 8), 322; of chemical composition of Clifton-Morenci porphyry, 388-302 ; of chemical changes in altered igneous rock, 395, 396, 402

Dial-compass, 216

Diamonds, in Arkansas, 526

Dikes, basalt, effect on ore deposits,

Diorite, 469, 692

Dioritic rocks, 692

Discu B

N

yrHH Oo

A

Donat Drake

20; Drillir Dry I (Ve Dunca Dunne Dunst

Eagle Eckel, Alal Econo on (Lo lin Editor Eldrid

Eldrid view Ellis, . Emme men Emmo catic Enarg Endlic Ran;

scur- OL saan andi-

'land,

Mon- r by, 7; on

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y, 157 y for-

7, 248;

toes

e, The volume

lineral,

of dent spe- 'pl. 8), ion of 88-302 ; red ig-

eposits,

Index. 779

Discussion—

Broken Hill silver mine, New South Wales (Andrews), 643

The classification of low-grade coals (Grout), 647

The localization of values or occurrence of shoots in metalliferous deposits (Irving), 143; (Smith), 224; (Sales), 326; (Ransome), 331; (Boehmer), 3373. (Winchell), 425; (Stirling), 534; (Sjogren), 637.

Mineral resources of China (Church), 428

Note on the occurrence of gragies schist in Tuxedo Park,

Y. (Bayley), 525; (Stew-

a, 538

On the Ray mining district, Nevada (Turner), 538

The ore deposits of Copperopolis, Cal. (Reid), 340

The oxidation of pyrite (Grout),

Peat, its origin, uses, and distribution in Michigan (Lane),

A theory of ore-deposition (Ransome), 420; (Jaggar), 520 Donath, E., on formation of coal, 313 Drake, N. F,, on coal, in China, 16, 20; on iron ore, in China, 27 Drilling wells, in China, 124 Dry Branch region, Ga., Kaolins of (Veatch), 109 Duncanville sand, 484 Dunnet shale, 597 Dunstan, B., review of paper by, 246

Eagle formation,

Eckel, E. C., on Clinton ores, of Alabama, 285

Economic geology, Recent literature on (Clapp), 100, 167, 252, 348; (Loughlin), 446, 558, 667; (Loughlin and Clapp), 764

Editorial, 418

7 eal G. H., on Montana group,

Eldridge, G. H., and Arnold, R., review of paper by, 231

Ellis, A. j., review by, 437

Emmons, S. F., on orographic movements, 743

Emmons, W. H., A genetic classification of minerals, 611

Enargite, 631-635

Endlich, F. M., on Sangre de Christo Range, 740

Erzlagerstatten von Pitkarante am Ladoga-See (Triistedt), review of,

Everhart, E., analysis of kaolin by,

Experiments on the separation of the constituents of a solution by filtration through a mineral filter (Sullivan), 750

Fall Line clays, 109

Falu mine, 637

Fault fissures, character. of, 148

Fayol, on formation of coal, 293

Fell's shale, 506

Ferric sulphate solutions, experiments with, 751

Filtration through a mineral filter, Experiments on the separation of the constituents of a solution by (Sullivan), 750

Finlay, J. R., on ore deposits, in Idaho, 334

Fisher, C. A., Southern extension of the Kootenai and Montana coalbearing formations in northern Montana, 77

Fissure veins, in China, 10

Fissures, gouge-filled, 331; ore-bearing, 331-337

Fleck, H., and Haldane, W. G., review of paper by, 159

Fluorite, 614

Formation of coal, Some problems of (White), 292

Fossil iron ores of Georgia (McCallie), review of, 757

Franklinite, 622

Fraser, C., review of paper by, 438

Frazer, P., on classification of coals, 134 ;

Fuller mill, for grinding cement materials, 67

Gallia Co., Ohio, sections in, 198

Garfield, J. R., review of paper by,

Garneill, Mont., section of Kootenai formation near, 82

Garnet, 473, 701

Garry, G. H., Ore-deposits of the Velardena district, Mexico,

Gas and salt wells, in China, 121

Gautier, A., on thermal waters, 422

Gehlenite, 708

Geikie, A., on fusion, 423

Genesis, of coals, factors of, 2092; of the copper-tin ores of Cornwall, 377; of magnetite ores of Shasta

780 Index,

Co., Cal., 476; of the ore minerals at Heroult, Cal., 476; of ores at Mineral, Idaho, 501; of ores in Velardefia district, Mexico, 713; of copper ores in Sangre de Christo Range, Colo., 747

Genetic classification of minerals (Emmons), 611

Geological and economic work, magnetic observations in (Smyth), 200 Geological aspect of the lodes of Cornwall (MacAllister), 363

Geological relations of the Scandinavian iron ores (Sjogren), review of, 65

Geology, of China, 6; of Lehigh and Northampton Counties, Pa., 38; of the Dry Branch region, Ga., 109; of Kasaan Peninsula, Alaska, 410; of -Heroult region, Shasta Co., Cal., 466; of eastern Illinois oil fields, 483; of Mineral, Idaho, 493; of western Virginia, 506-519; of the Scotch oil shales, 584; of Newark copper deposits of Pennsylvania, 729; of the Sangre de Christo Range, Colo., 739

Geology and origin of the Lapland iron ores (Stutzer), review of, 545

Geology of Illinois petroleum fields (Bain), 481

Geology of the Adirondack magnetite iron ores (Newland), review of,

Geology of the cement belt, in Lehigh and Northampton Counties, Pa. (Peck), 37

Geology of the Coromandel subdivision, Hauraki, Auckland (Fraser), review of, 438

Georgia, Kaolins of the Dry Branch region (Veatch), 109

Glass materials, in China, 29.

Gold, in China, 10, 131; in Manchuria, 14; in Pennsylvania, 732

Gold-bearing rocks, of China, 6

Gold values, in the Klondike gravels,

Gouge-filled fissures, 331 Granite, pneumatolytic changes in,

Granites of Maine (Dale), review of, 157

Grano-diorite, 469

Graphic comparison of the alteration of rocks by weathering with their alteration by hot solutions (Steidtmann), 381

Graphic comparison of chemical and

mineralogical changes, method of,

Ginnie, algal origin of, 298 eran schist, in Tuxedo Park, N. Se 535

Graton, L. C., review by, 542

Gravels, of the Klondike, 650

Graywacke, 609

Graywacke slate, analysis of, 608

Great Falls region, coal deposits of, 78; Kootenai formation of,

Great Fitzroy copper and gold mine, Mount Chalmers, Rockhampton district (Dunstan), review of, 246

— W. T., review of paper by,

Griswold, W. T., and Munn, M. J, review of paper by, 232

Grand'Eury, on the formation of coal, 204

Greenbrier limestone, 504

Greenstone, 376

Grout, F. F., discussion by, 532, 647; on the classification of coals, 135; on formation of coal, 318

Guardarraya intrusion, 604

Giimbel, K. von, on formation of coal, 2

Gwynedd formation, 729

Gypsum Creek, Wyo., section of Cloverly (Kootenai) formation on,

Haanel, E., on location of ore deposits, 201

Hague, A., on Montana group, 88

Hardman, E., on magnetite, of New Brunswick, 280

Harrisburg peneplain, 40

Hartford, W. Va., section at, 105

Hedenbergite, 473

Hess, F. L., review by, 159

Hillebrandite, 707

Hills, R. C., on the Sangre de Christo formation, 743; on ore deposits in Sangre de Christo Mts.,

Holden, R. J., review by, 7 Holmes, T. R, on the bP of Ictis,

Honorable Peter White, a biographical sketch of the Lake Superior iron country (Williams), review of, 155

Hoover, H. C., on metal mining, in China, 7, 10; on gold, in China, 14; on coal, in China, 17

Hore, R. E., Origin of cobalt-silver ores of northern Ontario, 599

Hosie Hot rocl Houst Hous' Huds Huer: Hurle Hyde, Hydr: mat Hypot twe

Iddin; gro Igneo Me: Igneo defi Illino: Tllinoi (Bz Ilvait Impo: mat row Impot tion Ingall 656, Inters Intrus Me: Intrus sula Intru: tari Iowa

din: Irving

Jagga Jame:

east Jeffer

id of,

*k, N.

its of, mine, upton yer by,

M. J,

on of

2, 647; Ss, 1353

ion of

ion of ion on,

re de-

tite, of

gre de ore deto Mts.,

of Ictis, jograph- Superior

review

ining, in nina, 14;

ult-silver

Index. 781

Hosie, A., on Manchuria, 3, 14

Hot 'solutions, action on igneous rocks, 397

Houston coal, 506

Houston marls, 595

Hudson River slate, Pa., 51

Huerfano formation, 743

Hurlet limestone, 591, 595

Hyde, J. E., section by, 186

Hydraulic cement, discovery of, 57; manufacture of, 584

Hypothesis and theory, distinction between, 425

Iddings and Weed, on Montana group, 88

Igneous phenomena, at Velardejfia, Mexico, 724

Igneous rocks, of China, 9; of Velardefia, Mexico, 692

Illinois, geological structure of, 486

Illinois petroleum fields, Geology of (Bain), 481

Ilvaite, 473, 624

Importance of uniform and_systematic coal-mine sampling (Burrows), review of, 441

Impounding of mineralizing solutions, 150

Ingalls, W. R., review of book by, 56, 759

Intersecting veins, 153

Intrusions, in Velardefia_ district, Mexico, 693

Intrusive rocks, of Kasaan Peninsula, Alaska, 411

Intrusives, in diabase-gabbro, in Ontario, 601

Iowa Geological Survey, Annual report, Vol. XVII., 1906, review of,

Iron lodes, of Cornwall, 378

Iron ore, analysis of, 472

Iron ore deposits, types of, 276

Iron ore formations, of China, 7

Iron ore reserves, 2

Tron ores of Canada (Leith), 27

Iron ores, of Adirondacks, 664; of Canada, 276; of China, 27-20, 128, 28; of Lapland, 545; of Lehigh Valley, Pa., 37; of Newfoundland, 286; of Ontario, 279, 280; of Scandinavia, 658

Irving, J. D., discussion by, 143

Jaggar, T. A., discussion by, 520

Jameson, C. D., on coal and iron, in eastern China, '27

Jeffersonite, 622

Judith basin region, Kootenai formation in, 81

Judith River beds, 89-06

Judith River region, formations of,

Kaolin, analysis of, 114; as alteration product, 304

Kaolins of the Dry Branch region, Ga. (Veatch), 109

Kasaan Peninsula, Alaska, The copper deposits of (Wright), 410

Kasaan Peninsula, Alaska, geology of, 410; intrusive rocks of, 411; ore deposits of, 413

Keewatin formation, 605

Keewatin-Huronian rocks, role in precipitating ores, 605

Keewatin iron ores, 284

Keith, A., on magnetites, of North Carolina, 279

Kemp, J. F., on localization of values, 152; on magnetites, of New York, 279; of Pennsylvania, 279; on contact deposits, 476; on ore deposits, 479; translation by, 677

Killas, 375

Kilns, for cement manufacture, 64

Kingsmill, T. W., on coal, in China,

Kirkwood sand, 484, 4890

Kittatinny dolomite, 41

Kittatinny valley, physiography of, 40

Klondike high level gravels, 650

Knight, C. W., review of paper by,

Knopf, A., review by, 540

Kolbeck, F., on porphyry rocks, in China, 132

Kootenai and Montana coal- bearing formations in northern Montana, Southern extension of (Fisher), 77

Kootenai formation, 78; sections of,

Kunz, G. F., and Washington, H. S. on diamonds in Arkansas, 526

Lake Superior iron country, A biographical sketch of (Williams), review of, 155

Lake Superior sedimentary type, of iron ore, 281

Lane, A. C., discussion by, 431

Lansdale formation, 729

Lapland iron ores, 545

Lapparent, A. de, on formation of coal, 204

Lasalle anticline, 486

Launay, L. de, on ore deposits, 421

782 Index.

Law, mining, mineral, and geological,

Lawrence Co., Ohio, sections in, 199

Lead, in China, 130

Lead and zinc in the United States (Ingalls), review of, 656, 759

Leadville, Colo., instances of secondary enrichment, 338

Leclére, A., on geology of southern China, 126

Le Conte, J., on fusion, 423

Lehigh County, Pa., physiography of,

Leith, C. K., The iron ores of Canada, 276; review. by, 658; on pegmatite type of ores, 643

Leith, C. K., and Harder, C. E., on iron ores, in Utah, 277

Leonard, A. G., review of report by,

te haa Ringuet, F., on geology, of North China, 22, 32

Lesley, J. P., on anthracitization, 315

Lewis, J. V., on New Jersey copper deposits, 7 26

Lewiston limestone, 504

Liberty Hall limestone, 511

Lignite, application of term, 136; analyses of, 223

Lignite of Mississippi (Brown), 219; review of, 164

Limestones, analyses of, 513, 516, 517,

Lindgren, W., on ore deposits, in Idaho, 331; on ores of the Clifton- Morenci district, 383; on ilvaite, 473; on production of silver, 492; on geology of Mineral, Idaho, 496; on formation of minerals, 611; on classification of minerals, 612; on instability of soda salts, 623; reviews by, 650, 652, 653

Lindgren, W., and Ransome, F. L., on ore deposits, in Colorado, 332; on filtration of mineral solutions,

Lines, E. F., reviews by, 230, 762

Literature on economic geology, Recent (see Recent literature etc.)

Localization of values in ore-bodies, 143, 224

Loezy, L. von, on sections, in China, 118; on coal, in China, 121

Lodes, of Cornwall, structure of, 370

Lodes of Cornwall, Geological aspect of (MacAlister), 363

Logan, W. N., review of paper by,

Leemeneersy ores, of Nova Scotia,

Loess, of China, 9 Los Muertos formation, 689 Lothians, columnar section in, 590 Loughlin, G. F., Recent literature on economic geology, 446, 558, 667, 764 Lower Huronjan formation, 606 Low-grade coals, A practical classification for (Campbell), 134 Lyman, B. S., on copper in Pennsylvania, 726

MacAlister, D. A., Geological aspect of the lodes of Cornwall, 363

McCallie, S. W., review of work by,

McCloud formation, 470

McConnell, R. G., review of paper

by, 650

McMechen, F. L., review of paper by,

Macon, Ga., clay mines near, 109

Magmas, 422, 696, 701

Magmatic segregation type, of iron ore, 277

Magnesian limestone, for cement, 45

Magnetic observations in geological and economic work (Smyth), 200

Magnetic sands, 287

Magnetic strip, survey of,

Magnetite, 472, 622

Magnetite deposits, 270, 470

Magnetite ores of Shasta Co., Cal., Occurrence and genesis of (Prescott), 465 ;

Magnetometer, construction and use, 200; figure of, 200

Manchuria, gold in, 12

Maps—North and central China, 6 (pl. 1); cement belt of Pennsylvania, 55 (pl. 2); clay deposits of Macon, Ga., 110; central and south China, 126 (pl. 3) ; Cornwall, England, 366; Kasaan Peninsula, Alaska, 415; northern California, 465; Heroult, Shasta Co., Cal., 467; oil pools in eastern Illinois, 482 (pl. 9); mineral, Idaho, 494; Virginia, showing Ordovician outcrops, 508; T. 8S., R. 25W., Arkansas, 525; southern Scotland, 578; Pennsylvania copper deposits, 729 (pl. 13).

Maps, representation of features on,

Marcasite, 533

Mead, W. J., The relation of density, porosity, and moisture to the specific volume of ores, 319; review

by, 664 Medina beds, Pa., 52

'e on ', 764

lassi-

nsyl-

Spect

k by,

paper

er by,

iron

nt, 45 ogical , 200

ats 'Pres-

d use,

ina, 6 nnsylsits of south , Enginsula, fornia, s, 482 ; Virout r, Arotland, posits,

res on, lensity,

le Spereview

Index. 783

Meigs Co., Ohio, sections in, 190, 191

Mercury, in China, 131

Metalliferous deposits, localization of shoots in, 143

Metallographic provinces, 421

Metallography, 628

Metamorphism, of coal, 314; of dioritic intrusives, 608, 704; of alaskitic rocks, 705; of limestone, 706, 709; in Velardefia district, Mexico,

Metasomasis, in Cornwall, 374

Mexico, mining industry of, a brick review of (Ordoiez), 677

Mexico, Velardena district, Ore-deposits of (Spurr and Garrey), 688

Michipicoten iron ores, 283

Miller, W. G., on cobalt-silver ores,

599, 605

Miller, W. G., and Knight, C. W., on cobalt-silver ores, 606

Mineral, Idaho, Ore deposits at (Turner), 492

Mineral, Idaho, geological map of, 494; section at, 495

Mineral resources of China (Willis), I, 118; discussion of (Church), 428

Mineral resources of the United States for the calendar year 1906, review of, 343 ©

Mineral specific gravity, defined, 320

Mineralizing solutions, impounding of, 150

Minerals, A genetic classification of (Emmons),

Minerals, of Heroult, Shasta Co., Cal, 472

Mining, in Cornwall, antiquity of,

Mining conditions, in Mexico, 685

Mining or American, proceedings,

Mining Ties of Mexico, A brief review of (Ordofiez), 677

Mining, mineral, and geological law (Shamel), review of, 433

Mississippi, The lignite of (Brown), 219; cement materials of, 553

Missouri, iron ores of, 285

Montana, Kootenai coal- bearing formations of, 77

Montana group, 87; section on Cow Creek, Mont., 80

Monterey County, Cal., coal from,

Monzonite, 603

Mortar test, for coking coal, 265

Moss, H. R., analysis of ilvaite by,

Mungle shale, 595

Murat limestone, 511, 515

Musselshell River region, Kootenai rocks of, 83; Montana group in, 90

Nason, F. L., on graphite, 535

Natural Bridge limestone, 511

Natural cement, 71, 522

Natural gas, in Illinois, 481, 489

Nests, defined, 144

Nevada, Ray mining distriet, 538

New discovery of peridotite in Arkansas (Purdue), 525

Newark copper deposits of southeastern Pennsylvania (Wherry),

Newark series, 726

Newberry, J. S., on Kootenai series,

Newfoundland, iron ores of, 286

Newland, D. H., review of paper by,

Norristown formation, 729

North China, 6-30; rocks of, 6

North Dakota Geological Survey, Fourth biennial report, review of,

Northampton County, Pa., physiography of, 38

Nova Scotia, Londonderry ores of,

Obrutchoff, W., on sections in China,

Occurrence and genesis of the magnetite ores of Shasta Co., Cal., (Prescott), 465

Oil industry, of Scotland, nature of, 573; extent of, 574; origin of, 575; minerals used in, 577; location of, 577; history of, 578

Oil sands, of Illinois, correlation of,

Oil shale, of Scotland, 587

Oil shale field, of Scotland, structure of, 593; sections of, 504

Oil-bearing formations, of southern California, correlation of, 237

Oneida beds, Pas" 52

Ontario, iron ores of, 279, 280

Ontario, northern, cobalt-silver ores of, Origin of err ige 599

Ordofiez, E., brief review of the mining industry of Mexico, 677

Ore-chute, defined, 225

Ore-deposition, theory of, 420, 520; at Mineral, sor

Ore deposits at Mineral, Idaho (Turner), 492

784 Index.

Ore-deposits of the Velardena district, Mexico (Spurr and Garrey),

Ore deposits, of Copperopolis, Cal., 340; of Kasaan Peninsula, Alaska, 413; of Mineral, Idaho, 496; of Pitkaranta, 540; of Velardefia district, Mexico, 678, 712; of Sangre de Christo Range, E olo., 745

Ore shoots, at Butte, Mont., 326; at Leadville, pee 3395 origin of, "426

Ores, cobalt-silz of northern .Ontario, Origin oF (Hore), 509

Origin, of cement rock of Lehigh region, 55; of kaolins of Georgia, 115; of graphite at Tuxedo Park, N. Y., 537; of disseminated ore in Cobalt district, Ont. 603; of iron ores of Sweden, 643; of ores at Broken Hill, N. S. Wales, 846; of ore deposits in Velardefia district, Mexico, 713; of Newark copper ores in Pennsylvania, 737; of copper ores in Sangre de Christo Range, Colo, 746

Origin of cobalt-silver ores of northern Ontario (Hore), 599

Oxychlorid of magnesia process, for cement-making, 45

Pagina intrusion, 694

Paleozoic, of China, 8

Paragenesis, 475, 62 8

Paragenetic ore shoots, 426

Paramorphism, 711

Parr, S. W., on the classification of coals, 135

Parsons, W. B., on coal, in China,

Pay-shoots, defined, 145

Peat, essays on its origin, uses, and distribution in Michigan (Davis), review of, 248

Peck, F. B., Geology of the cement belt, in Lehigh and Northampton Counties, Pa., 37

Pegmatite type, of iron ore, 277

Pennington shales, 504

Pennsylvania, cement belt of, 37

Peridotite, A new discovery of, in Arkansas (Purdue), 525

Perkasie formation, 729

Permo-Triassic, of China, 8

Persistent minerals, 623

Petroleum, in China, 125; recent literature on, 231; production in the United States, 232; algal origin of, 298; in Illinois, 481; conditions of occurrence, 487

Petroleum fields, Illinois, Geology of (Bain), 481

Petrologic provinces, 421

Piedmont region, physiography of,

Pishel, M. A., A practical test for coking coals, 265

Pittsburg coal, in Ohio, 188

Placers, in China, 12

Pneumatolytic alteration, in Cornwall, 374

Pocket handbook of minerals (Butler), review of, 438

Pockets, defined, 144

Pomeroy, Ohio, section at, 193

Pomeroy coal. in Ohio (Bownocker and Condit), 183

Pomeroy sandstone, 199

Porosity, of ores, method of determining, 321

Porphyry, composition diagrams of, 390-396; alteration of, 303

Portland cement, composition of, 62; process of manufacture, 63-70

Portland cement rock, analyses of,

Postgenetic ore shoots, 426

Potonié, H., on formation of coal, 294, 209

Pottstown formation, 729

Practical classification for low-grade coals (Campbell), 134

Practical ea for coking coals (Pishel), 26

Pre-Cambrian, "ot China, 7

Pre-Cambrian rocks, of Lehigh and Northampton Counties, Pa., 41

Preparation, of material, for metallographic examination, 629

Prescott, B., The occurrence and genesis of the magnetite ores of Shasta Co., California, 465

Production, of iron ore, in 1906, 288

Pryor Mountain region, formations in, 93

Pumpelly, R., on rock disintegration, 13; on coal, in China, 34

Pumpherston shales, 591, 507

Purdue, A. H., A new discovery of peridotite in Arkansas, 525

Purington, C. W., on fissures, 149; on ore horizons, 151

Pyrargyrite, 625

Pyrite, 630-635, 638; oxidation of,

Pyrite, The relation of copper to, in the lean copper ores of Butte, Montana (Simpson), 628

Pyrite ores, of Butte, Mont., 628

Quar: Quart Quart Queb

Raebt Ransc Ray 1 Recen ogy (Lc lin Recen Redst

Relati lean tanc

Relati mot ores

Renat 206,

Repla

Repla

Repor

can sess Repor vey, Repor dike nell Resou lis), Retort Review try Reviei A

Ce

jy of

y of,

t for

Corn-

(But-

Bow-

deterns of, of, 62;

ie) eS Ol,

f coal,

-grade coals gh and , 41 netallo-

ce and ores of

906, 288

mations

gration,

very of

es, 149;

tion of,

er to, in te, Mon-

Index.

Quarry products, Iowa, 657 Quartz, 623 Quartz-tourmaline veins, 499 Quebec, bog ores of, 287

Raeburn shale, 595

Ransome, F. L., discussion by, 331, 420; reviews by, 246, 438, 759

Ray mining district, Nevada, 538

Recent literature on economic geology (Clapp), 100, 167, 252, 348; (Loughlin), 446, 558, 667; (Loughlin and Clapp), 764

Recent literature on petroleum, 231

Red Basin of Ssi-ch'uan, in China, 119; geology of, 120

Reaoee coal, in Pa. and W. Va.,

Refining, of oil, 581

Reichert, F., review of paper by, 652

Reid, C., on the Island of Ictis, 364

Reid, J. A., discussion by, 340

Relation of copper to pyrite in the lean copper ores of Butte, Montana (Simpson), 628

Relation of density, porosity and moisture to the specific volume of ores (Mead), 319

Renault, B., on formation of coal, 206, 207.

Replacement, in rocks, 711

Replacement deposits, 497

Report of proceedings of the American mining congress, Tenth annual session, review of, 445

Report of the Iowa Geological Survey, Vol. 17, review of,

Reports on gold values in the Klondike high level gravels (McConnell), review of, 650

Resources, Mineral, of China (Willis), I, 118

Retorting and refining, of oil, 581

Review, Brief, of the mining industry of Mexico (Ordojfiez), 677

Reviews—

Annual report, Vol. XVII., 1906, Iowa Geological Survey, Quarry products, Bleininger,

Cement and Portland cement materials of Mississippi (Crider), Burchard, 553

Clays of Mississippi (Logan), Lines, 230

The copper handbook, Vol. VII. (Stevens), Graton, 542

Die Erzlagerstatten von Pitkarante am Ladoga-See (Triistedt), Knopf, 540

Fossil iron ores of Georgia (McCallie), Holden, 757

Fourth biennial report North Dakota Geological Survey 1905- 1906 (Leonard), Lines, 762

The geological relations of the Scandinavian iron ores (Sj6- gren), Leith, 658

The geology and origin of the Lapland iron ores (Stutzer), Spencer, 545

Geology of the Adirondack magnetite iron ores (Newland), Mead, 664

The geology of the Coromandel subdivision, Houraki, Auckland (F razer), Ransome, 438

The granites of Maine (Dale), Bayley, 157

The Great Fitzroy copper and gold mine, Mount Chalmers, Rockhampton district (Dunstan), Ransome, 246

The Honorable Peter White; a biographical sketch of the Lake Superior iron country (Williams), Bayley, 155

Importance of uniform and systematic coal-mine sampling (Burrows), Bain, 441

Lead and zinc in the United States (Ingalls), Bain, 656; Ransome, 759

The lignite of Mississippi (Brown), De Wolf, 164

Mineral resources of the United States for the calendar year 1906, Watson, 343

7 mineral, and geological law (Shamel), Winchell, 433

Peat, essays on its origin, uses, and distribution in Michigan (Davis), 248

A pocket handbook of minerals (Butler), Bayley, 438

Report of proceedings of the American mining congress, Tenth annual session, Bain, 445

Reports on gold values in' the Klondike high level gravels (McConnell), Lindgren, 650

Some recent literature on petroleum, Bain, 231

A study of the uranium and vanadium belts of southern Colorado (Fleck and Haldane), Hess, 159

Tests for ores, minerals, and metals of commercial value (McMechen), Ellis, 437

786 Index.

Transvaal Mines Department, report of the Geological Survey for the year 1906, Lindgren,

Los Yacimientos de boratos y otros productos minerales explotables del territorio de los Andes (Reichert), Lindgren,

Richthoten, Eo ¥. On coal, in China, 15, 16, 23; on iron ore, in China, 28; on clays, in China, 30; on sections, in China, 118 Rito Alto Peak, 740; ores of, 746 Robinson sand, 484 Rock specific gravity, defined, 320 Rogers, H. D., on copper ores, 736 Romney shales, 504

Sales, R. H., discussion by, 326

Salida copper deposits, 745

Salisbury, Pa., section near, 184

Salt weils, in China, 121

Sampling ore-deposits, 227

San Isidora intrusion, 697

Sandberger, F., on ore deposits, 152

Sangre de Christo formation, 743

Sangre de Christo Range, Colorado, Some copper deposits in (Bagg),

Sapranthrakon, 290

Saprodil, 299

Sapropel, 299

Sapropelic coals, characterized, 299

Sapropelite, 299

Scandinavian copper and lead-silver mines, 637

Scandinavian iron ores, 658

Scheerer, T., on fusion, 423

Scientific Notes and News, 106, 178, 258, 353, 453, 567, 671, 7

Scotland, The shale oil industry of (Steuart), 573

Scott's Run, W. Va., section on, 184

Secondary enrichment and impoverishment, 337

Sections—Lehigh cement belt, Pa., 54; Kootenai formation at Belt, Mont., 80; at Skull Butte, Mont., 81; at Muddy Creek, Mont., 82; at South Moccasin Mts., 82; Cloverly (Kootenai) formation, on Gypsum Creek, Wyo., 85; near Thermopolis, Wyo., 85; Montana group, on Cow Creek, Mont., 89; near Lebo Creek, Mont., 91; near Bridger, Mont., 94; near Chance, Wyo., 96; Dry Branch region, Ga., 110; near Salisbury, Pa., 184; on Scott's Run,

W. Va., 184; Bellaire, Ohio, 186; Belmont Co., Ohio, 186, 187; Athens Co., Ohio, 190; Meigs Co., Ohio, 190, 191; Pomeroy, Ohio, 193; near Hartford, W. Va., 195; near Bladen, Ohio, 196; Gallia Co., Ohio, 198; Lawrence Co., Ohio, 199; across Illinois, 485; Mineral, Idaho, 495; Silver Bell mine, Idaho, 4098; between the Blue Ridge and Little North Mt, Va, 506; of middle and upper Ordovician strata in northwestern Virginia, 512; of "The Valley" in southwestern Virginia, 518, 519; in the Powell River valley, Va., 520; of the West Calder shale field, Scotland, 579; of oil shale, at Torbane, Scotland, 586; of the shale fields of Mid and West Lothian, Scotland, 590, 504

Separation of the constituents of a solution by filtration through a mineral filter, Experiments on (Sullivan), 750

Setting, of cement, 72

Shale oil industry of Scotland (Steuart), 573

Shamel, C. H., review of paper by,

Shasta Co., Cal., Occurrence and genesis of the magnetite eres of (Prescott), 465

Shenandoah formation, 509

Sherwood limestone, 511

Shoot, defined, 144

Shoots of occurrence, defined, 145, 147; how produced, 147-151

Shoots of variation, defined, 145; how produced, 151-154

Shoots in metalliferous deposits, 143

Silver, at Mineral, Idaho, 492; production of, in Mexico, 681

Silver Bell mine, vertical section of,

Silver mines, of Svenningdalen, Norway, 641

Silver-lead ores, of Scandinavia, 637

Silver-lead veins, of Cornwall, 37

Simpson, J. F., The relation of copper to pyrite in the lean copper ores of Butte, Montana, 628

Sinian limestone, China, 8

Sjégren (H.), discussion by, 637; tinge of paper by, 658

Skarn,

Skélar, 638

Skull Butte, Mont., section of Kootenai formation, 81

Smith, Smith, Smyth, Smyth,

im g Solutio ents eral

van) Solutio rock: coal Some 1 revie South of, I South of K Southe and tions (Fisl Spanisl Specific deter Specific of di to (I Spence magr Spodur Spots, Spurr, 420; 604, ; Spurr, depo: Mexi Spurrit Stantor Stantor on th Staurol Steidtm SON ¢ weat] hot s Steuart of Sc Stevens Stewart Stibnite Stirling Stokes, shale:

186; 187;

Co., Jhio, 195; ox Ohio, ieral, mine, Blue

2: )rdo- Vir- " in 9; in

520; field, Torshale thian,

of a gh a 5 ON

ar by,

and 'es of

ia, 637

f copcopper

Koote-

Index. 787

Smith, F. C., discussion by, 224

Smith, H. K,, review of paper by,

Smyth, A. L., on placers, 13

Smyth, H. L., Magnetic observations in geological and economic work,

Solution, separation of the constituents of, by filtration through a mineral filter, Experiments on (Sullivan), 750

Solutions, hot, action on igneous rocks,

Some problems of the formation of coal (White), 292

Some recent literature on petroleum, review of, 231

South China, geology of, 125; map of, 126

South Moccasin Mts., Mont., section of Kootenai formation at, 82

Southern extension of the Kootenai and Montana coal-bearing formations in northern Montana (Fisher), 77

Spanish Peaks, 743

Specific gravity, of ores, method of determining, 320

Specific volume of ores, The relation of density, porosity, and moisture to (Mead), 319

Spencer, A. C., review by, 545; on magnetite ores, of New Jersey, 279

Spodumene, 624

Spots, defined, 144

Spurr, J. E., discussion of paper by, 420; on ore deposition, 479, 501, 604, 736

Spurr, J. E., and Garrey, G. H., Oredeposits of the Velardeia district, Mexico, 688

Spurrite, 707

Stanton, T. W., on Montana group,

Stanton, T. W., and Hatcher, J. B., on the Montana group, 78, 88

Staurolite, 624

Steidtmann, E., A graphic comparison of the alteration .of rocks by weathering with their alteration by hot solutions, 381

Steuart, D. R., The shale oil 'industry of Scotland, 573

Stevens, H. J., review of book by,

Stewart, C. A., discussion by, 536 Stibnite, 614 Stirling, J., discussion by, 534 Stokes, F. N., analysis of paleozoic shales by, 608

Stremme and Spiaie, on sapropelic rocks, 308

Structure sections, across Illinois, 485

Study of the uranium and vanadium belts of southern Colorado (Fleck and Haldane), review of, 159

Stutzer, O., review of paper by, 545

Sub-bituminous coal, defined, 136,

Sullivan, E. C., Experiments on the separation of the constituents of a solution by filtration through a mineral filter, 750

Synthesis, of rocks, 711

Table, showing results of coking tests on coals, 268; of sedimentary rocks of Cornwall, 368; of composition of igneous rocks, 401-404; of Cambrian and Ordovician formations of northwestern Virginia, 510; of genetic classification of minerals, 618-622

Teall, J. J. H., on contemporaneous veins, 604

Terneras intrusion, 603

Terneras ore, composition of, 715-

Test, practical, for coking coals (Pishel), 265

Tests for ores, minerals, and metals. of commercial value (McMechen), review of, 437

Texada Island, iron ores of, 278

Thalen-Tiberg magnetometer, 200

Theory and hypothesis, distinction between, 425

Thermal alteration, 407

Thermal water, 501

Thermopolis, Wyo., section of Cloverley formation near, 85

Tin, in China, 129; in Cornwall, 364; alluvial deposits of, in Cornwall, 379; of Pitkaranta, 541

Tin ores, of Cornwall, genesis of, 377

Torbane, Scotland, section at, 586

Torbanehill mineral, 584

Torbanite, 585

Tourmalinization, 376

Transvaal Mines Department, report of the Geological Survey for the year 1906, review of, 653

Trap rocks, 730

Trenton limestone, 42; composition of, 43

Triistedt, O., review of paper by, 540

Tsin-ling region, China, 118

Turner, H. W., The ore deposits at Mineral, Idaho, 492; discussion by,.

Tuscaloosa formation, 109 Two-feet coal, 595

Uranium and vanadium belts of southern Colorado (Fleck and Haldane), review of, 159

Vancouver Island, iron ores of, 278

Van Hise, C. R., on cobalt-silver ores, 509, 605; on formation of minerals, 611; on ore deposition, 732; on Sangre de Christo Range, 739

Veatch, O., The kaolins of the Dry Branch region, Ga., 109

Veins, quartz- -tourmaline, 499; in diabase- gabbro, in Ontario, 601 ; contemporaneous, 604; in Velardefia district, Mexico, 679

Veinstones, in Cornwall, structure of,

Velardena district, Mexico, Ore-deposits of (Spurr and Garrey), 688

Velardefia district, Mexico, geologic history of, 688

Verschoyle, W. D., on gold mining in China, II

Vesuvianite, 624

Virginia, physiographic divisions of, 505; sections in, 506; map showing Ordovician outcrops, 508

Virginia, western, Cement materials of (Bassler), 503

Vogelsang, K., on Ta-pa-shan, China,

Vogt, J. H. L., on gray copper, 498 Volume of ores, 319

Water, meteoric, 501

Watson, T. L., analysis of red residual clay by, 116; review by, 343

Weathered rocks, average composition of, 399

Weathering, of coal, 137, 647; alteration of rocks by, 381, 390

Weed, W. H., on Kootenai rocks, 79

Index.

Weed and Pirsson, on Montana group, 8&8 Well drilling, in China, 124

Weller, S., on anticlinals in Illinois,

Wherry, E. T., The Newark copper deposits of southeastern Pennsylvania, 726

White, C. D., leum, 298

White, D., Some problems of the formation of coal, 292

Wilcox formation, 220

Willemite, 622

Williams, J. F., Arkansas, 526

Williams, R. D.,

Wiilis, B., Mineral China, 1, 118

Willis, B., and Blackwelder, E., on sections, in China, 118

Willmott, A. B., on iron ores, of Ontario, 280, 284

Winchell, A. N., discussion of paper by, 532

Winchell, H. V., discussion by, 425; review by, 433

Wollastonite, 624

Wright, C. W., The copper deposits of Kasaan Peninsula, Alaska, 410

Wright, F. E., on hillebrandite, 707; on spurrite, 707

on genesis of petro-

on periodotite in review of paper by,

resources of

Xenotime, 624

Yacimientos de boratos y otros productos minerales explotables del territorio de los Andes (Reichert),

Yang-tzi region, mations of, 31

Yttrialite, 624

China, 30-36; for-

Zincite, 622

ontana

Illinois,

copper ennsyl-

petro-

he for-

of

os proles del hert),

6; for-

a

The M Geology

Southe t Recent Scienti

Minera A Prac Discuss Th " Review Recent Scienti

Iron Or

Some

The Re

Contents Of Volume Iii.

Number 1. The Mineral Resources of China, Part I BaILeY WILLIs Geology of the Cement Belt in Lehigh and Northampton Counties, Pa., with a Brief History of the Origin and Growth of the Industry and a Description of the Methods of Manufacture FREDERICK B. Peck Southern Extension of the Kootenai and Montana Coal-bearing Formations in Northern Montana Cassius A. FISHER Recent Literature on Economic Geology C. H. Crapp Scientific Notes and News

Number 2. The Kaolins of the Dry-Branch Region, Georgia Otto VEATCH Mineral Resources of China, Part II ' BaILey WILLIS A Practical Classification for Low-grade Coals Marius R. CAMPBELL Discussion:

The Localization of Values in Ore Bodies and the Occurrence of "Shoots" in Metalliferous Deposits J. D. Irvine W. S. Baytey, F. L. Hess, Frank W. DEWoLrF Recent Literature on Economic Geology C. H. Crapp

Scientific Notes and News

Number 3.

The Pomeroy Coal in Ohio J. A. Bownocker and D. D. Conpitr Magnetic Observations in Geologic and Economic Work, IL., Henry Lioyp SMyTH The Lignite of Mississippi Calvin S. Brown Discussion: The Localization of Values in Ore Bodies and the Occurrence of " Shoots" in Metalliferous Deposits F, C. SmitH Reviews Epwin F. Lines, H. Foster Barn, Martus R. CAMPBELL Recent Literature on Economic Geology C. H. Crapp Scientific Notes and News

Number 4. mreractical Test for Coking Coals sccccscsccess Max A. PISHEL Iron Ores of Canada C. K. Leirx Some Problems in the Formation of Coal Davin WHITE The Relation of Density, Porosity and Moisture to the Specific Volume of Ores Warren J. MEap

iv CONTENTS.

Discussion: The Localization of Values in Ore Bodies and the Occurrence of "Shoots" in Metalliferous Deposits

Ore-shoots at Butte, Montana Reno F. Sores Relations between Certain Ore-bearing Veins and Gangue-filled Fis- MOTOS osc) k oh aes Peat nein ee cee esis wees sow kts F. L, RANSOME Secondary Enrichment and Impoverishment Max BoEHMER The Ore-deposits of Copperopolis, GGUTOTMIA 5... 65.6560: Joun A. Reip PROVIOIER 5.500 a Sack a bee ee MR ees els Hikes 9.68 eS EEE T. L. Watson Recent Literature on Economic Geology C. H. Capp ESCAMANCLNAC BIN OLOS ANTE MUDD thers! Cl ite oleic eos s's Cain de Sa ae bere iaje Fa aeld alee Spee Number 5.

Geological Aspect of the Lodes of Cornwall Donatp A. MAcALISTER A Graphic Comparison of the Alteration of Rocks by Weathering with their Alteration by Hot Solutions Epwarp STEIDTMANN

The Copper Deposits of Kasaan Peninsula, Alaska..CHarLes W. WRIGHT

PUMMRDIAIAL 00555 Cog eels ales 6S HERES MTOR eee ialecais Se Nc inlo e' aiCe Obs sain eT bres Discussion: A Theory of Ore Deposition by J. E. Spurr F. L. RANSOME The Localization of Values in Ore Bodies and the Occurrence of "Shoots" in Metalliferous Deposits H. V. WINCHELL Mineral Resources of China by Bailey Willis Joun A. CHURCH Peat, its Origin, Uses and Distribution in Michigan A. C. LANE Reviews, H. V. WINcHELL, A. J. Extis, W. S. Baytey, F. L. RANsome, Bir! aity 2 6 GunarUM uA fy hy 25 8 Ds a Rn eB Se oe RRR pe Recent Literature on Economic Geology G. F. LouGHiin SSCABUILREIC SNOLOM STI NOIR 5 oye es oo 656 556s ood eie soe eep eee Cheese Number 6.. Occurrence and Genesis of the Iron Ores of Shasta County, Cal. Basit Prescott Geology of Illinois Petroleum Fields H. Foster Bain The Ore-deposits at Mineral, Idaho H. W. Turner Cement Materials of Western Virginia R. S. BASSLER A New Discovery of Peridotite in Arkansas / A. H, PurpurE Discussion:

A Theory of Ore-deposition—Discussion of paper by J. E. Spurr, T. A. JacGar, Jr. The Oxidation of Pyrite—Discussion of paper by A. N. Winchell, FRANK F. Grout The Localization of Values in Ore Bodies and the Occurrence of "Shoots" in Metalliferous Deposits JAMES STIRLING Notes on the Occurrence of Graphite Schist in Tuxedo Park, N. Y. C. A. Stewart, W. S. BAyLey Notes on the Ray Mining District, Nevada H. W. Turner Reviews..ApDOLPH KwNopr, L. C. Graton, A. C. Spencer, E. F. BurcHARD

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CONTENTS. Vv

Recent Literature on Economic Geology G. F. LoucHiin 558

BENET EDCOE ANID MNO WB sc oss 5. 56.05% co ies ieeig ose Gis sivas elena wteial emia ieee 567

Number 7.

The Shale Oil Industry of Scotland D. R. STEUART 573

Origin of the Cobalt-Silver Ores of Northern Ontario...ReEGciINALD E. Hore 599

A Genetic Classification of Minerals WititrAM H. Emmons 611 The Relation of Copper to Pyrite in the Lean Copper Ores of Butte,

MENLO Gor Sco0 fsa sah 6 fa atosa/srne , weve UENO MUTSIS James F. Srmpson 628

Discussion:

The Localization of Values in Ore Bodies and the Occurrence of

"Shoots" in Metalliferous Deposits HJALMAR SJOGREN 637

The Broken Hill Silver Mine, New South Wales E. C. ANDREWS 643

The Classification of Low-grade Coals Frank F. Grout 647 Reviews, W. Linpcren, H. F. Bain, A. V. BLernincerR, C. K. LerrH,

WARREN cis PIMRICADD sores 0 ioe) 555. 0nd vie, Ca drove Fe nies Rsareinnt eae Mente ieee 650

Recent Literature on Economic Geology G. F. LoucHirn 667

BOIONELLIC SETOLON CRUE VOWS os ss oie o sinreeiaieriie lela wiwwietw in griiow eine settee Casuisins 671

Number 8. A Brief Review of the Mining Industry of Mexico EzEQuiEL OrpoNez 677

Ore Deposits of the Velardefia District, Mexico..J. E. Spurr, G. H. Garrey 688 The Newark Copper Deposits of Southeastern Pennsylvania, Epcar T. WHERRY 726 Some Copper Deposits in the Sangre de Christo Range, Colorado, Rurus MatHER Bace, JR. 739 Experiments on the Separation of the Constituents of a Solution by

Filtration through a Mineral Filter EucENE C. SULLIVAN 750 RVIOWE s cRiisicvaiicutas 8c R. J. Hoven, F. L. Ransome, Epwin F. Lines 757 Recent Literature on Economic Geology G. F. Loucuiin, C. H. Crapp 764 SEATTLE MDL SEED WUD 50-6 0 0-0 cise ve U:0:4 ecclro.e ib Sis ate else Srna ie oss isla 774 RR RAIN OMRON oo oon ks'o's, diss-o0 8% awe 5 eteeig bUWRO ERM saree eee 77