INDEX. 
259 
Ordovician— Continued. 
Paleontology — Continued. 
Cryptozoa from Vermont and New 
York : Seely, 21(53. 
D'Orbigny's types figured : Boule and 
Thevenin, 270. 
Franklin : Ami, 39. 
Pelmatozoa from Chazy, of New York : 
Hudson, 1253. 
Pembroke area, Ontario and Quebec : 
Ami, 41. 
Ore deposits, origin. 
General: Bancroft, 127, 128; Coleman, 
545; Ilixon, 1174; Kemp, 1360, 
1366; Koch, 1421; Liudgren, 
1589, 1507, 1600 ; Merrill, 1731 ; 
Miller, 17.",:;; Nicholas, 170X ; 
Nichols, 1803 ; Read, 1004 ; Kil- 
ter, 2070; Shamel, 217S; Spun-, 
2273; Stokes, 2301; Sullivan, 
2324, 2325; Villarello. 2457; 
WInchell, 2617, 2618. 
Arizona, Cochise mining district : Kel- 
logg, 1358. 
Block faulting and ore deposition : 
Jenney, 1295. 
California, Mojave district: Bateson, 
164. 
Cerargyritic ores : Keyes, 1392. 
Clinton red fossil-ore of Lookout Moun- 
tain : Phalen, 1917. 
Cobalt ores : Hixon, 1173 ; Tyrrell, 
2405; Van Hise, 2422. 
Colorado, Downtown district of Lead- 
ville : Emmons and Irving, 803. 
Contact deposits : Kemp, 1366. 
Copper-iron sulphides, secondary en- 
richment : Read, 1992 ; Sullivan, 
2324. 
Copper ores : Fernekes, 865 ; Lane, 
1510. 
Lake Superior : Fernekes, 864 ; Lane, 
1512. 
Nevada, Robinson district : Lindgren, 
1598. 
Yerington : Jennings, 1298. 
New Jersey : Lewis, 1578. 
Virginia : Weed and Watson, 2504. 
Copper, silver, and gold, experiments 
on solution, transportation, and 
deposition of: Stokes, 2300. 
Field work needed in study of : Cole- 
man, 545. 
Fissure veins and ore deposits as water 
ways: Lakes, 14.">s. 
Gold, association with alunite in Gold- 
field district: Lincoln, 1587; 
Ransome, 1985. 
concentration in Klondike : Tyrrell, 
2406. 
Cold ores of Alaska: Spencer, 2201. 
Interaction of minerals and water solu- 
tions : Sullivan, 2325. 
Iron ores, Animikie iron range : Silver, 
2212. 
Kentucky, northeastern : P h a 1 e n , 
1918. 
Ore deposits, origin— Continued. 
Iron ores, Salisbury district: Hobbs, 
1185. 
Vermilion Range : Abbott, 1. 
Lead and zinc ores, Galena-Joplin dis- 
trict: Clerc, 506,507; Haworth, 
1098. 
Mississippi Valley: Bain, 99, 106; 
Buckley, 342. 
Virginia-Tennessee region : Watson, 
24S4. 
Wisconsin : Grant, 1019. 
Lead ore, Ontario : Lewis, 1576. 
Magnetite deposits, Adirondack region : 
Newland, 1794. 
Pennsylvania, Berks and Lebanon 
counties : Spencer, 2262. 
Nevada. Klondike district : Spurr 
2270. 
Silver Peak quadrangle: Spurr, 2271. 
Nickel and copper ores of Sudbury : 
.Browne. 336; Coleman, 549. 
Nickel iferous pyrrhotites, microstruc- 
ture of: Campbell and Knight, 
409, 411. 
Ocher deposits : Watson, 2483. 
Ore deposits in serpentine : Forstner, 
890. 
Pockets in gold veins : Harrison, 1081. 
Pyrite, origin : Willmott, 2603. 
oxidation of : Read, 1995 ; Winchell, 
261 6. 
Pyrite and marcasite, action on, by 
various solutions: Stokes, 2301. 
Quartz veins of Silver Peak, Nevada : 
Hastings, 1089. 
Quicksilver ores of California : Au- 
bury, 86. 
Salt water in mines : Lane, 1502. 
Secondary enrichment of copper-iron 
sulphides : Read, 1994. 
Striations, meaning of : Bucke, 339 ; 
Reid, 2022. 
Sudbury nickel ores : Browne, 336 ; 
Coleman, 549. 
Sulphide ores : Coleman, 543. 
Sulphur deposits, Mapimi : Villarello, 
2150. 
Woolmitb quarry: Kraus, 1423. 
Utah, Ontario mineral belt : Jenney, 
1295. 
Oregon. 
• General. 
Human implements in an abandoned 
river channel : Kemp, 1371. 
Economic. 
Coal deposits : Ritter, 2069. 
Copper mining in 1905 : Weed, 2499. 
Mineral resources : Stafford, 2270. 
Nickel Mountain: Kay. 1345. 
Seven Devils and Snake River dis- 
tricts: Reid, 20(t0. 
Dynamic and structural. 
Glaciers of Mt. Hood : Reid, 2008. 
Physiographic. 
John Day region : McClung, 1645. 
