INDEX. 
233 
Geologic history— Continued. 
Regional — Continued. 
Vermont, Champlain Valley : Hitch- 
cock, 1 1 05. 
Virginia : Surface, 2326. 
Washington : Smith and Calkins, 2240. 
Cascade Mountains : Daly, 632. 
Wisconsin, Lancaster and Mineral 
Point quadrangles : Grant and 
Burchard, 1021. 
Milwaukee quadrangle : Alden, 23. 
Wyoming, Bald Mountain and Dayton 
quadrangles : Darton, 645. 
Bighorn basin : Fisher, 873. 
Bighorn Mountains: Darton, 647. 
Cloud Peak and Fort MeKinney 
quadrangles : Darton, (i4C. 
Devil's Tower quadrangle : Darton 
and O'Harra, 656. 
Owl Creek Mountains : Darton, 642. 
Geologic maps. 
Alabama: Smith, 2229. 
Alberta, Cascade coal basin: Dowling, 
736. 
Moose Mountain district : Cairnes, 
381. • 
Alaska : Brooks, 313 ; Wright and 
Wright, 2654. 
Admiralty Island: Wright, 2640. 
Cape Lisburne region : Collier, 552. 
Juneau gold belt : Spencer, 2261. 
Matanuska coal field : Martin, 1682. 
Rampart region : Prindle and Hess, 
1958. 
Arkansas : Veatch, 2436. 
coal field : Collier, 556. 
Winslow quadrangle : Purdue, 1971. 
British Columbia, Telkwa River re- 
gion : Leach, 1534. 
California : Aubury, 85, 86. 
eastern : Ball, 120. 
Redding quadrangle : Diller, 721. 
San Francisco peninsula : Craudall, 
591. 
Santa Clara Valley : Eldridge and 
Arnold, 779. 
Santa Maria oil district : Arnold 
and Anderson, 66, 67. 
Summerland district: Arnold, 63. 
Colorado. Arkansas Valley: Darton, 
648. 
Clear ("reek region: Underbill. 2414. 
Cripple ('reek district: Lindgren and 
Ransonie, 1605. 
Halms Peak region: dale. !>22. 
Nepesta quadrangle : Fisher, 869. 
Ouray quadrangle: Cross et til., C,i>7. 
Routt County: Fenneman and Gale, 
863. 
Connecticut : Ellis, 780 ; Gregory, 1034 ; 
Gregory and Robinson, 1038; 
Rice, 2030. 
Delaware, Dover quadrangle : Miller, 
1749. 
Franklin : Low, 1623. 
Geologic maps— Continued. 
Illinois : Bain, 100 ; Purdy and De- 
Wolf, 1973 ; Weller, 2517, 2524. 
zinc and lead region : Bain, 99. 
Indiana, Monroe County : Reagan, 
1998. 
Indian Territory, Muscogee quad- 
rangle : Taff, 2332. 
Iowa : Savage, 2130. 
Black Hawk County : Arey, 53. 
Bremer County : Norton, 1805. 
Clayton County : Leonard, 1559. 
Franklin County : Williams, 2588. 
Jackson County : Savage, 2128. 
Lancaster quadrangle : Grant and 
Burchard, 1021. 
Sac and Ida counties : Macbride, 
1639. 
Winneshiek County : Calvin, 388. 
zinc and lead region : Bain, 99. 
Kansas, Independence quadrangle : 
Schrader and Haworth, 2144. 
Joplin district : Smith and Sieben- 
thal, 2251. 
Kentucky, Cumberland Gap coal field : 
Ashley and Glenn, 877. 
east central : Foerste, 884. 
Louisiana : Veatch, 2436. 
Winnfield sheet : Harris, 1079. 
Maine, Boothbay quadrangle : Ogilvie, 
1815. 
Penobscot Bay quadrangle : Smith 
et al., 2241. 
Maryland : Clark and Mathews, 488 ; 
1689; Shattuck, 2184. 
Calvert County : Shattuck, 2188. 
Dover quadrangle : Miller, 1749. 
Patuxent quadrangle : Shattuck et 
al., 2193. 
Piedmont plateau : Mathews, 1690. 
St. Marys quadrangle : Shattuck, 
2185. 
Massachusetts : Mansfield, 1674. 
Mexico : Aguilera, 1(5. 
Chihuahua : Hovey, 1236. 
Durango, Mapimi : Angermann, 51. 
San Pedro de Gallo : Angermann, 
50. 
Sierra de Concepcion del Oro : 
Burckhardt, 357. 
Zacatecas : Burckhardt and Scalia, 
363. 
Michigan : Leverett et al., 157.".. 
Black River section : Gordon and 
Lane, 985. 
Menominee, Dickinson, and 
counties : Russell, 2104. 
Mississippi : Brown, 326 ; Crider 
Crider and Johnson, 
Logan and Hand. 1609. 
Missouri : Shepard, 2194. 
Granby area : Buckley and Buehler, 
346. 
Joplin district : Smith and Sieben- 
thal, 2251. 
Iron 
599 
