106 INDEX TO NORTH AMERICAN GEOLOGY, PALEONTOLOGY, [bull. 189, 
Geologic formations described— Continued. 
Superjacent scries, Turner and Ransome, 5485. 
Sushitna slate series, Eldridge and Muldrow, 
1631. 
Swank sandstone, Russell, 4721. 
Swansea rhyolite, Smith, 5032. 
Swanton, Marcou, 3664. 
Sweetland Creek beds, Udden, 5517, 5518. 
Sylamore sandstone, Williams, 61S9, 6191. 
Sylvania sandstone, Sherzer, 4954. 
Tachatna series, Spurr, 5184. 
Taconic, Clarke, 971. 
Taconic, Clarke and Schuchert, 965. 
Taconic, Marcou, 3663. 
Taconic, Nitze, 4107. 
Taconic, Nitze and Hanna, 4108. 
Taconic, Winchell, 6330, 6335, 6348, 6352. 
Taconyte, Winchell, 6354. 
Taconyte member, Grant, 2127. 
Tahkandit series, Emmons, 1713. 
Tahkandit series, Spurr, 5173. 
Talcott, diabase, Emerson, 1676. 
.Talladega slate, McCalley, 3818. 
Taloga formation, Cragin, 1128. 
Tanana schists, Mendenhall, 3907. 
Tanana schists, Peters and Brooks, 4361. 
Tanana series, Brooks, 622. 
Tanana series, Mendenhall, 3903. 
Tar sands, Tyrrell, 5501. 
Taylor formation, Hill and Vaughan, 2556. 
Teay formation, Campbell, 741. 
Tecumseh shale, Beede, 390. 
Tejon, Kimball, 3161. 
Tejon formation, Smith, 5039. 
Tejon formation, Turner and Ransome, 5470. 
Tellico sandstone, Campbell, 740. 
Tellowa formation, Campbell, 735. 
Tenmile River beds, Shaler, Woodworth, and 
Foerste, 4940. 
Terra Cotta series, Spurr, 5184. 
Thayer shale, Haworth, 2375. 
Thayer shale, Keyes, 3128, 3142, 3148. 
Thomson slates, Winchell, 6349, 6360. 
Three Forks limestone, Hague, 2236. 
Three Forks shale, Weed, 5953. 
Thurman sandstone, Taff, 5290. 
Timpas formation, Hills, 2596, 2599. 
Tintic quartzite, Smith, 5032. 
Tishomingo granite, Vaughan, 5733. 
Tiverton arkose, Shaler, Woodworth, and 
Foerste, 4940. 
Togiak gravels, Spurr, 5184. 
Tok sandstone, Brooks, 622. 
Topeka limestone, Beede, 390. 
Topeka limestone, Haworth, 2375. 
Torbay slate, Walcott, 5815. 
Tordrille series, Spurr, 5184. 
Toronto, Calvin, 708. 
Toronto formation, Leverett, 3491, 3495. 
Torrejon, formation, Matthew, 3804. 
Transition formation, Sardeson, 4799. 
Traverse, Lane, 3394. 
Traverse group, Sherzer, 4954. 
Travis Peak formation. Hill and Vaughan, 
2556. 
Trenton, Bell, 406. 
Trenton, Ells, 1661. 
Geologic formations described— Continued. 
Trenton, Keyes, 3090. 
Trenton, Marcou, 3663. 
Trenton, Ries, 4622, 
Trenton, Whiteaves, 6094. 
Trenton, Winchell and Ulrich, 6337. 
Trenton formation, White, 6070. 
Trenton limestone, Blatchley and Ashley, 496. 
Trenton limestone, Buckley, 655. 
Trenton limestone, Calvin and Bain, 720. 
Trenton limestone, Clarke, 971. 
Trenton limestone, Clarke and Schuchert, 965. 
Trenton limestone, Cumings. 1220. 
Trenton limestone, Cushing, 1245. 
Trenton limestone, Dale, 1256. 
Trincheras division, Dumble, 1573. 
Trinidad formation, Hills, 2596, 2599. 
Triplecia bed, Sardeson, 4799. 
Truro series, Shaler, 4933, 4934. 
Tuckahoe group, Shaler and Woodworth, 4939. 
Tully limestone, Clarke, 971. 
Tully limestone, Clarke and Schuchert, 965. 
Tully limestone, Lincoln, 3512. 
Tully limestone, Luther, 3602, 3603. 
Turtle Lake moraine, Todd, 5435. 
Tuscaloosa, Stanton, 5201. 
Tuscaloosa formation, McCalley, 3818. 
Tuscarora formation, O'Harra, 4129. 
Tuscarora quartzite, Darton, 1335. 
Tuscarora formation, Clark, 912. 
Twelvemile beds, Spurr, 5173. 
Tyee sandstone, Diller, 1508. 
Tyee formation, Smith, 5039. 
Tyonek beds, Spurr, 5184. 
Tyringham gneiss, Emerson, 1678. 
Uinta formation, Scott, 4883. 
Uinta formation, Smith, 5039. 
Ulsterian, Clarke, 971. 
Ulsterian, Clarke and Schuchert, 965, 977. 
Umpqua formation, Diller, 1508. 
Umpqua formation, Smith, 5039. 
Union formation, Ami, 110. 
Unkar terrane, Walcott, 5815. 
Upper Helderberg group, Bishop, 448. 
Upper Helderberg group, Luther, 3602. 
Upper Marquette series, Smyth, 5103. 
Upper Marquette series, Van Hise and Bayley, 
5704. 
Upper Menominee series, Van Hise and Bay- 
ley, 5713. 
Upper Oneota dolomite, Norton, 4122. 
Upper Osgood clay, Foerste, 1839. 
Upson clay, Vaughan, 5738. 
Utica, Bell, 406. 
Utica, Ells, 1661. 
Utica-Hudson formation. White, 6070. 
Utica, Marcou, 3663. 
Utica, Winchell and Ulrich, 6337. 
Utica formation, Hershey, 2491. 
Utica shale, Blatchley and Ashley, 496. 
Utica shale, Clarke, 971. 
Utica shale, Clarke and Schuchert, 965. 
Utica shale, Cumings, 1220. 
Utica slate, Cushing, 1245. 
Utley metarhyolite, Weidman, 5970. 
Uvalde formation, Hill and Vaughan, 2556, 
2562. 
