INDEX TO VOL XXXI. 
A. 
Alden, William C, 255. 
Alkaline rocks, Madagascar, A. La- 
croix, 183. 
America, how long ago peopled, 312. 
American Institute of Mining En- 
gineeis, G5, 397. 
Ames knob, North Haven. Maine; 
a sea.side note, Bailey Willis, 159. 
Ami, H. M. Sketch of the life and 
work of the late A. R. C. Selwyn, 
director of the Geological Survey 
of Canada, lS(i9-lS94; 1; and bibli- 
ography, 16. 
American Association for the Ad- 
vancement of Science, 66. 
Analyses en bloc et leur interpreta- 
tion, M. F. Fouque-, 181. 
Anorthosyte, The rock name, C. F. 
Kolderup, 392. 
Apatite crystals, Antwerp, N. Y., 
N. Knight, 62. 
Ashley, George H., 255. 
B. 
Babcock, E. G., North Dakota Geo- 
logical Survey, 383. 
Bain, H. Foster, 128, 394. 
Banell. Joseph. 325. 
Basin-range structure in the Death. 
Valley region of southeastern Cal- 
ifornia, M. R. Campbell, 311. 
Bauer, L. A., Magnetic declination 
tables, etc., 123. 
Belly River bed.s of Canada, J. B. 
Hatcher, 3G9. 
Berkey, C. P., 394. 
Bison, extinct, from Alaska, 262. 
Block mountains in New Mexico, D. 
AV. Johnson, 135. 
Bownocker, J. A., The central Ohio 
natural gas fields, 218. 
Burchard, El nest F., 394. 
C. 
Calkins, F. C, Petrography of the 
John Day basin, 54. 
Calvin, S. Iowa Geological Survey, 
124. 
Cambrian faunas, G. F. Matthew, 
256. 
Campbell, M. R. 255; Basin-range 
structure in the Death Valley reg- 
ion of southeastern California. 311. 
Cause of the Glacial period. H. L. 
True, 384. 
Cayeux, I.... Mesozoic formations in 
Greece and Crete, 386. 
Ctentral Ohio natural gas fields, J. 
A. Bownocker, 218. 
Ceratops beds. Lance Creek, Wy- 
oming, J. B. Hatcher, 369. 
Chamberlin, T. C, 193, 394; Pleis- 
tocene geology near Lansing, Kan- 
sas, 265. 
Chester, Albert H., 394. 
Chicago Academy of Science, 04. 
Clapp, F. G., The marl-loess of the 
lower Wabash valley. 158. 
Clark, W. B., Maryland Geological 
Survey, 54. 
Clarke, John M., Annotations of 
Jaekel's theses on Orthoceras and 
other cephalopods, 216. 
Clayton stone axe, 193. 
Columbia University, fall excursions 
of the geologicall department, H. 
W. Shimer. 62. 
Coneannon farm, Pleistocev*e geol- 
ogy of, near Lansing, Kansas, N. 
H. Winchell, 263. 
Condra, G. E., On Rhombopora lepi- 
dodendroides (Meek), 22; An old 
Platte channel, 361. 
Cope. Edward D., catalogue of all 
the publications of, 1859-1897, P. 
Frazer, 180. 
Correspondence. 
Apatite crystals, Antwerp. N. Y., 
N. Knight. 62; Fall excursions 
of the geological department, 
Columbia University, H. W. 
Shimer, 62; The rock name an- 
orthosyte, C. F. Kolderup, 392. 
Crete, Jurassic and Cretaceous for- 
mations in, L. Cayeux, 386. 
Curtis. George Carroll. Note on the 
West Indian eruptions of 1902, 40. 
Cushing. H. P., Recent geologic 
work in Franklin and St. Law- 
rence counties, N. Y., 180. 
Dale, T. Nelson. Structural details 
in the Green Mountain region and 
in eastern New York, 58. 
Davis, W. M., 262. 
Death Valley region of southeastern 
California, basin-range structure 
U\ M. R. Campbell, 311. 
Determination of the fildspars in 
thin section, J. E. Spurr; 376. 
Diamond mines of South Africa, 51. 
Diller. J. S. Topographic develop- 
ment of the Klamath mountains. 
257. 
