112 
INDEX TO NORTH AMERICAN GEOLOGY, 
[BULL. 203. 
Economic geology — Continued. 
South Dakota,— Continued. 
Problems of the Dakota artesian system, 
Todd. 742. 
Tennessee. 
Copper deposits of Southern United States. 
Weed, 795. 
Horizons of phosphate rocks, Safford, 666. 
Maynardville folio, Keith, 411. 
Tennessee white phosphate, Eckel, 254a. 
Tennessee white phosphate, Hayes, 357. 
Texas. 
Bat guano caves in Texas, Phillips, 611. 
Beaumont oil field, Phillips, 609. 
El Paso tin deposits, Weed, 797. 
Iron ores of east Texas, Dumble, 247. 
Oil and gas fields of western interior and 
Gulf coast, Adams, 7. 
Quicksilver mines of Brewster County, Spald- 
ing, 715. 
Texas petroleum, Phillips, 608. 
Utah. 
Notes on two desert mines, Emmons, 262. 
Vermont. 
Asbestos region in northern Vermont, Kemp, 
416 and 419. 
Occurrence of asbestos, Kemp, 420a. 
Virginia. 
Copper deposits of Southern United Siates, 
Weed, 795. 
Washington. 
Clealum iron ores, Smith and Willis, 709. 
Discussion of Clealum iron ores, Courtis, 165. 
Ores of the Republic mine, Chatard and 
Whitehead, 135. 
Silverton mining district, Stretch. 734. 
Washington serpentine marbles, Lyon, 506. 
West Indu .-■. 
Bituminous deposits of Cardenas, Cuba, Peck- 
ham, 591. 
Copper mines of Santa Clara Province, Cuba, 
Vaughan, 769. 
Iron ores of Cuba, Spencer, 716. 
Manganese mining in Cuba. Chibas, 137. 
West l 'train in. 
Charleston folio, Campbell. 105. 
Wisconsin. 
Clays and clay industries, Buckley. '.'4. 
Copper-bearing rocks of Douglas County, 
Grant, 313. 
Iron-ore deposits of the Lake Superior region, 
Van Hise, 759. 
Wyoming. 
Dutton, Rattlesnake, Arago, Oil Mountain. 
and Powder River oil fields, Knight and 
Slosson, 450. 
Iron mines of Hartville, Chance, 132. 
Petroleum fields, Knight, 447. 
Sweetwater mining district, Knight, 448. 
General. 
Arkansas and Indian Territory coals, Keyes, 
438. 
Asphalt and bituminous rock deposits, El- 
dridge, 255. 
Change of ore bodies with change of country 
rock, Lakes, 468. 
Coal outcrops, Catlett, 121. 
Economic geology— Continued. 
General — Continued. 
Coal outcrops, Randolph, 638. 
Coal outcrops, Scholz, 680. 
Contiguity of ore deposits of different generic 
relationships, Keyes, 440. 
Contribution to the natural history of marl, 
Davis, 201. 
Deposition of copper by solutions of ferrous 
salts, Biddle, 60. 
Diamondiferous deposits in the United 
States, Hobbs, 378. 
Enrichment of gold and silver veins, Weed, 
794. 
Geology of ore deposits, Van Hise, 760. 
Genesis of ore deposits, Alderson, 9. 
Genesis of ore deposits, Tays, 739. 
Graphite and garnet, Hopkins, 389. 
High plains and their utilization, Johnson, 
404. 
Metasomatic processes in fissure veins, Lind- 
gren, 495. 
Ore formation by concentration through sur- 
face decomposition, Keyes, 428. 
Origin and classification of ore deposits, 
Keyes, 423. 
Occurrence and distribution of corundum, 
Pratt, 622. 
Origins and times of formation of lead and 
zinc deposits of the Mississippi Valley, 
Keyes, 441. 
Origin of Australian iron ores, Winchell,851. 
Origin of the Coal Measure fire clays, Hop- 
kins, 388. 
Origin of vein cavities, Nason, 562. 
Petroleum in western North America, Lakes, 
474. 
Phosphate mining industry of the United 
States, Memminger, 541. 
Principles controlling the»deposition of ores, 
Van Hise, 758. 
Recent contributions to the science of ore 
deposits, Raymond, 641. 
Secondary enrichment of ore deposits, Em- 
mons, 261. 
The nonmetallic minerals; U. S. National 
Museum, Merrill, 545. 
Zone of maximum richness in ore bodies, 
Keyes, 437. 
Economic products described. 
Abrasive materials, Hopkins, 389. 
Albertite, Merrill, 545. 
Allanite, orthite, Merrill, 545. 
Alum slate or shale, Merrill, 545. 
Aluminite, Merrill, 545. 
Alunite, Merrill, 545. 
Amblygonite, Merrill, 545. 
Antimony, Asquith, 33. 
Apatite; rock phosphates; guano, etc., Mer- 
rill, 545. 
Arsenopyrite; mispickel or arsenical pyrites, 
Merrill, 545. 
Artesian water, Todd, 742. 
Artesian wells, Miller, 548. 
Asbestos, Kemp, 416, 419, 420a. 
Asbestos, Merrill, 545. 
Asbolite, Merrill, 545. 
