INDEX TO YOL. X. 
Advance sheets from the eighteenth report, 
Indianji survey, Paleontoloirv, Miller, 
32:i. 
Alabama, geologv of northeMsterii, Haves, 
Alumiuiini, 398. 
Another old outlet of lake Humn, Wriglit, 
262. 
Appalachian Virginia, X. 11. Darton, 10: 
Keith, 362. 
Approximate interglacial chronometer, N. 
11. Winchell, C9,:i02. 
Annual report of the department of 
mines. New South Wales, 25.">. 
Areal work of the U. S. Geol. Surv., Mc- 
Gee, 377. 
Arkantius, tlie iron deposits of, Penrose, 
324. 
B 
Bailey, L. W., tiS. 
Basal lini' of delimitation of the Carbon- 
iferous, Keyes, 380. 
Basic eruptive rocks in Androscoggin Co., 
Maine, (tco. P. Merrill, 49. 
Bather, F. A., 260: 3!'«. 
ijausse Rousse, new discoveries at, Nadail- 
lac, 296. 
Beecher, C. E., Development of the brach- 
iopoda, 253. 
Beachler, C. S., Keokuk group in the Mis- 
sissippi valley,_88. 
Beitrage zur Ge'ol. u. Pal. de Mexico, 
Felix u. Lenke, 120. 
Blue Ridge in Marvlaud and Virginia, 
Keith, 362. 
Britisli Association at Edinburgli, Clay- 
pole, 188; Address of Lapwortli, 22."). 
Britton, >T. L., Tertiary plants from Bo- 
livia. 63. 
Brumell, H. P., Notes on Manganese in 
Canada, So. 
Bryson, John, Wahnschaffe's work on the 
drift of Germany, 132. 
Calvin, S., Collection of fossils from the 
Lower Magnesian in Iowa, 144. 
Cambrian faunas, diffusion of, Matthew, 
66. 
Camerate crinoids from the Niagara, 
Wachsmutli and Springer, 13.5. 
Castillo, Antonio del. Carta geologica 
Mexicaua, 119. 
Caniiei coal from Kootanie, Penliallow,:^31. 
Chii'tetes in the Devonian at tlie falls of 
tlieOhio, Rominger, 56. 
Cliemical science, the immediate work in, 
Prescott, 28:1 
Choffat, Paul, Gibraltar, 326. 
Chonopliyllum, revision of, \V. II. Slier- 
zer, 66. 
Clark,W.B.(andG. II. Williams), Geology 
of Maryland, 63. 
Classification of the theories of the origin 
of iron ores, II. \'. Winchell, 277; of the 
cephalopoda, 327; 39t>. Of the Dyas, Trias 
and Jura in northwest Texas, Marcou, 
369. 
Claypole, E. W., Gigantic placoderm 
from Ohio, 1: (Ecology at the British 
Association at Edinbuigli, 188: 193; Head 
of Dinichthys, 199. . 
Clinton iron ore, origin of C. II. Smvth, 
Jr., 122. 
Conditions of the accuinnlatioii of Druiii- 
lins, Warren I'liham, 3-39. 
Cope, K. D., In the Texas I'anliandle, KSl, 
196. 
