INDEX. 
257 
Ohio— Continued. 
Stratigraphic. 
Carboniferous : Stevenson, 2294, 2295. 
Columbus and Sandusky formations: 
Swartz, 2329. 
Columbus esker : Morse, 1772. 
Devonian : Stauffer, 2277, 2278. 
Geologic formations : Prosser, 1900. 
Glacial dam at Hanover : Carney, 433. 
Licking County. Perry townsbip : Car- 
ney, 427. 
Ordovician at Cincinnati : Bassler, 
150. 
Scioto Illinoian lobe in Licking 
County : Carney, 428. 
Spring Valley gorge, origin: Schef- 
fel, 2138. 
Steubenville quadrangle : Griswold and 
Munn, 1048. 
Stratigraphy : Prosser, 1900. 
Paleontology. 
Land and fresh-water Mollusca, Defi- 
ance County : Sterki, 2282. 
Mammoth's tooth : McClure, 1040. 
Oil. See Petroleum. 
Oklahoma. 
Economic. 
Oil fields : Gould, 988. 
Quapaw district, lead and zinc : 
Crane, 593. 
Dynamic and structural. 
Sand-barite crystals : Nichols, 1802. 
Paleontology. 
Permian red beds fauna : Beede, 180. 
Petrology. 
^Egirite and riebeckite rocks : Rogers, 
2080. 
Ollgocene. Sec Tertiary. 
Ontario. 
General. 
Durham County, Coleman, 538. 
Hamilton Scientific Association, geo- 
logical section, report of : Neill, 
1787. 
Lake Nipigon to Lac Seul, survey 
from : Collins. 501. 
Lake Superior region between the Pic 
and Nipigon rivers : Collins, 
500. 
Lake Temagami to Spanish River : 
Wilson, 2014. 
Larder Lake district : Brock, 308. 
Mattagami Valley exploration : Kerr, 
1375. 
Muskoka district : Walker, 2474. 
Ontario meeting of American Institute 
df Mining Engineers: 418. 
Ottawa Field-Naturalist's Club, geo- 
logical work of: Ami and Wil- 
son, 44. 
Peterborough district: Johnston, 1315. 
Peterborough, Prince Euward, and 
Simcoe sheets: Johnston. L316. 
Economic. 
Animikie iron range: Silver, 2212. 
6683K— Bull. 372—09 17 
Ontario— Continued. 
Economic — Continued. 
Antik-Okan nickeliferous pyrrhotite de- 
posits : Hille, 1 157. 
Bruce copper mines : Williams, 258:;. 
Bureau of Mines, report : Gibson, 941. 
Clays : Baker, 00. 
Cobalt mining district : Bell, 191, 192, 
194; Courtis, 584; Frank, 894; 
George, 939 ; Hardinge, 1074 ; 
Hardman, 1070; Hotchkiss. 
1218 ; Loring, 1017 ; MacDonald, 
1059; Miller, 1758; Parks, 
1873; Rickard, 2053; Stokes, 
2303; Van Hise. 2422. 
Bonanza mines : Hutchinson, 1204. 
genesis of ores: Hixon, 1173. 
vein formation : Tyrrell, 2405. 
Craigmont, corundum : Haultain, 1095. 
Eldorado copper mine : Burrows, 304. 
Helen iron mine, Michipicoten : Cole- 
man, 541. 
Iron ores: Hille, 1158; Lindeman, 
1588 ; Thompson, 2309. 
James Bay : Wilson, 2004. 
Kent County, oil and gas : Knight, 
1411. 
Lake Abitibi gold deposits : Miller, 
1757. 
Lake Nipigon iron ranges : Coleman, 
548; Moore, 1771. 
Lead : Lewis, 1570. 
Mattagami Valley : Kerr, 1375. 
Michipicoten iron ranges : Coleman, 
541, 542: Moore, 1770. 
Michipicoten Island : Willmott. 2002. 
Mines of Ontario : Corkill, 578. 
Montreal River silver district : Meeks, 
1708. 
Natural gas and petroleum : Coste, 581. 
Nickeliferous pyrrhotites, microstruc- 
ture of: Campbell and Knight, 
411. 
Nipissing mine, Cobalt : George, 939. 
Pembroke sheet: Ells, 788. 
Pyrites : Fraleck, 893. 
Secondary enrichment in copper ores : 
DeKalb, 700'. 
Silver mining at Cobalt : Frank. S94. 
Sudbury nickel ores : Barlow, 147 ; 
Browne, 330 ; Coleman. 539, 
549; Hixon, 1171, 1172; Stokes, 
2304 ; Thompson, 2370. 
Temagami Reserve silver district : Mat 
tair, 1091. 
Temiskaming ores : Campbell and 
Knight, 408, 410. 
Tilbury and Romney oil fields : Coste, 
582, 58:',. 
Dynamic end structural. 
Fracture systems: Ilobbs. 1170. 
Granitlzation of Huronian schists: 
Bell. ISO. 
Physiographic. 
Niagara Falls: Spencer, 2L'0:>,. 2265, 
2200. 
