314 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189. 
Petrology— Continued. 
List of rocks described— Continued. 
Tuff, Smith, 5059. 
Tuff, Weed and Pirsson, 5935. 
Tuff (?), Winchell and Grant, 6376. 
Uralite-diabase, Lindgren, 3531. 
Uralite-diabase, Lord, 3572. 
Uralite-diorite, Turner, 5465. 
Uralite-gabbro, Turner, 5465. 
Vitrophyre tuff, Williams, 6159. 
Vogesite, Pirsson, 4408. 
Volcanic ash, Salisbury, 4768. 
Volcanic ash, Winchell and Grant, 6324. 
Volcanic bomb, Diller, 1507. 
Volcanic breccia, Ferrier, 1813. 
Vulcanic dust, Diller, 1507. 
Volcanic sand, Diller, 1507. 
Volcanic tuffs, Gregory, 2166. 
Websterite, Lewis, 3508. • 
Whetstone, Griswold, 2195. 
Wyomingite, Cross, 1196. 
Yogoite, Weed and Pirsson, 5929, 5936. 
Zirkelite, Wadsworth, 5772. 
Zirkelyte, Winchell and Grant, 6376. 
Philippine Islands, 
Geology of the Philippine Islands, Becker, 
349. 
Mineral resources of the Philippines, Day, 153. 
Physiographic geology. 
A lbuquerque sheet, New Mexico, Herrick and 
Johnson, 2465. 
Alpine glaciers of the Sierra Costa Mountains 
in California, Hershey, 2496. 
A pre-Glacial valley, Tight, 5384. 
Absaroka folio, Wyoming, Hague, 2236. 
Alluvial river terraces, Dodge, 1519. 
An old river channel, Veatch, 5744. 
Antecedent Colorado, Jefferson, 2902. 
Appalachian history, Willis, 6197. 
Appalachians, drainage of, Davis, 1348. 
Areal geology, Butte, Weed, 5940. 
Bad Lands of South Dakota, Darton, 329. 
Beaches and tidal marshes of the Atlantic 
coast, Shaler, 4934. 
Bearing of physiography on uniformatarian- 
ism, Davis, 1360. 
Big trees folio, California, Turner and Ran- 
some, 5485. 
Bitter Root Forest Reserve, Goode, 2049. 
Boise folio, Lindgren, 3540. 
Briceville folio, Keith, 2963. 
Bristol folio, Virginia-Tennessee, Campbell, 
740. 
Buckhannon folio, Taff and Brooks, 5287. 
Camasland, a valley remnant, Smith and 
Curtis, 5034. 
Canyons of Salmon and Snake rivers, Lind- 
gren, 3542. 
Cape Nome gold region, Alaska, Schrader 
and Brooks, 4836. 
Catoctin belt, Keith, 2959. 
Cenozoic geology of the middle Atlantic slope, 
Darton, 1307. 
Changes in drainage in southern Ohio, Lev- 
erett, 3490. 
Changes of level in Bermuda Islands, Tarr, 
5321. 
Physiographic geology— Continued. 
Changes of level in Mexico, Spencer, 5148. 
Characteristics of the Ozark Mountains, 
Keyes, 3087. 
Cleveland folio, Hayes, 2418. 
Climatology and physical features of Mary- 
land, Clark, 899. 
Closing of Michigan glacial lakes, Smyth, 
5070. 
Coal fields of Indian Territory, Drake, 1539. 
Coal fields of Puget Sound, Willis, 6208. 
Coast from Point Barrow to the Mackenzie, 
Alaska, Brooks, 619. 
Coastal topography of Lake Superior, Law- 
son, 3410. 
Colorado Canyon district, Davis, 1390. 
Connecticut, some rivers of, Kummel, 3272. 
Coosa Valley region, McCalley, 3818. 
Copper-bearing rocks of Douglas County, Wis., 
Grant, 2147. 
Copper regions of upper lakes, Canada, Cole- 
man, 1044. 
Cote sans Dessein and Grand Tower, Marbut, 
3651. 
Country between Athabasca Lake and 
Churchill River, Tyrrell, 5497a. 
Crystal Falls iron-bearing district, Michigan, 
Clements and Smyth, 1017. 
Cuba, Hill, 2558. 
Cuba and Porto Rico, Hill, 2563. 
Current notes on physiography, Davis, 1395, 
1396, 1397, 1398, 1401, 1402, 1404, 1405, 1406, 
1407, 1408. 
Cuspate capes of the Carolina coast, Abbe, 1. 
Decay of rocks to formation of sediments, 
relation of, Tarr, 5302. 
Declivities of high plateau and submarine 
valleys, Spencer, 5153. 
Development of Ohio River Tight, 5385. 
Does the Delaware water gap consist of two 
river gorges? Walter, 5831. 
Downieville folio, Turner, 5467. 
Drainage modifications, Campbell. 730. 
Drainage peculiarity in Maine, Burr, 665. 
Drift phenomena of Puget Sound, Willis, 6209. 
Economic geology of Des Moines County, 
Iowa, Keyes, 3075. 
Economic geology of Lee County, Iowa, 
Keyes, 3074. 
Elmoro folio, Colorado, Hills, 2598. 
El Real del Monte, Ordonez and Rangel,4152. 
Eolian deposits, Hall and Sardeson, 2253. 
Erosion in relation to theory of peneplain, 
Smith, 5063. 
Estimating age of Niagara Falls, W T right, 6525. 
Evolution of geographic forms, Brigham, 
593a. 
Expedition to Seriland, McGee, 3868. 
Explorations in Laborator, Low, 3578a. 
Extension of Appalachians. Branner, 537. 
Finlay and Omenica rivers, McConnell, 3836. 
Fisiografia de la sierra de Pachuca, Aguilera 
and Ordonez, 62. 
Florida elevated reef, Agassiz 53. 
Formations and changes of level in Jamaica, 
Spencer, 5152. 
Fort Benton folio, Montana, Weed, 6946. 
