15] 



VOLUMES XLI-L. 



493 



46, 45; Gregory, 46, 104; Barrell, I GEOLOGY. 



46, 133; Lull, 46, 193. 

 Geology, Physical, Cleland, 42, 282; 



Pirsson, 50, 460. 

 — Review of, 48, 247. 



GEOLOGY. 



Abo sandstone, New Mexico, ! 



ammonoids, Bose, 49, 26. 

 Agelacrinitid, from New York, [ 



Chazy, Clark, 50, 69. 

 Albertella fauna, Burling, 42, 



469. 

 Aletomeryx, Lull, 50, 83. 

 Algal deposits. Pre-Cambrian, 



etc., Twenhofel, 48, 339- 

 Algonkian Cambrian boundary 



in Vermont, Dale, 42, 120. 

 Ammonites, American Jurassic. 



Reeside, 50, 240. 

 — Type, Buckman and Tutcher, 



50, 468. 

 Ammonoids from New Mexico, 

 • Bose, 49, 26; Lee, 49, 323', of 



Texas, Bose, 47, 305. ! 



Amphibia, Coal Measures of 



North America, Moodie, 42, 



502. 

 Amphibian, Eocene, Loomis, 47, 



217. I 



Areas, Atlantic Slope, Sheldon, j 



43, 251. 



Arthropods in Burmese amber, 



Cockerell, 44, 360. 

 Artiodactyl, Oligocene, Troxell, 



49, 391; Tertiary, Lull, 50, 83. 

 Athabaska Series. Alcock, 50, 25. 

 Barrier Reef of Australia, Davis. 



44, 339- 



Beatricea, fossil hydroid, Schu- 



chert, 47, 293. 

 Berea formation of Ohio, etc., 



Verwiebe, 42, 43. 

 Berkshire schist and Stockbridge 



limestone, unconformity, Dale, 



49, 369- 



Botany, fossil, in the Western 

 World, Guppy, 49, 372. 



Brachiopod shales, Norway, 

 Troedsson, 48, 78. 



Brachiopoda of Antarctic Expe- 

 dition, Thomson, 48, 397; of 

 Burma, Buckman, 50, 74; of 

 the Girvan District, Reed, 43, 

 492; Permian, of Armenia, 

 Stoyanow, 42, 439; recent, 

 U. S. Nat. Museum, Dall, 50, 

 170. 



Bryozoa, early Tertiary, Canu 

 and Bassler, 50, 241; fossil, 

 West Indies, Canu and Bass- 

 ler, 49, 83. 

 Burlington limestone, origin of 



chert, Tarr, 44, 409. 

 Butler salt dome, Texas, Powers, 



49, 127. 

 Cambrian, Algae and Spongise, 

 Walcott, 50, 239; geology, 

 Walcott, 42, 439; of the Grand 

 Canyon, Schuchert, 45, 362; 

 and Ordovician of Maryland, 

 Bassler, 50, 237; and Pre- 

 Cambrian formations, Mon- 

 tana, Walcott, 42, 372; trails, 

 critical study, Burling, 44, 387; 

 T'rilobites, Walcott, 41, 301. 

 Carboniferous footprints, -Mass., 

 Lull, 50, 234; of the Grand 

 Canyon, Schuchert, 45, 347. 

 Cedar Mt. trap ridge near Hart- 

 ford, Davis, 46, 476. 

 Champ lain submergence on 

 Maine coast, Meserve, 48, 207. 

 Chapman sandstone of Maine, 



fauna, Williams, 42, 169. 

 Cheilostome Bryozoa, Canu and 



Bassler, 43, 419. 

 Cheirurinae, revision, Barton, 41, 



563. 

 Cherts, California, Davis, 47, 234; 

 Kansas, Twenhofel, 47, 407; 

 Missouri, formation of, Dean, 

 45, 411; origin, Tarr, 44, 409; 

 45, .149; Van Tuyl, 45, 449; 

 radiolarian, in Oregon, Smith, 

 42, 299, 504. 

 Chester series, Kentucky, 47, 232. 

 Chilopods and trilobites, ances- 

 try, Tothill, 42, 373. 

 Cincinnatian fossils, Foerste, 43, 



493- 

 Coleoptera, new, from the Floris- 

 sant beds, Wickham, 42, 81. 

 Comanchean of Florida, Sellards, 

 48, 13; Kansas, Twenhofel, 49, 

 281; Texas, Adkins and Min- 

 ton, 50, 241. 

 Conglomerates, origin, Field, 43, 



85. 

 Continental fracturing in Ocean- 



ica, Schuchert, 42, 91. 

 Cooper limestone, Greger, 50, 20. 

 Coral-reef. See Coral Reef. 

 Crab, fossil, Mary J. Rathbun, 41, 

 344- 



