INDEX TO VOL. XXV. 
Abbe, Cleveland, Jr., General report on 
the physiography of Maryland, 1»2. 
Agassiz, Alexander, 58, 1% ; 393. 
Alden, W. C, (R. D. Salisbury and). 
Geography of Chicago ami its envir- 
ons, 174. 
American Association for the Advance- 
ment of Science, 394. 
American museum of Natural History, 
64. 
Andesites of the Aroostook volcanic area 
of Maine, ri. E. Gregory, 175. 
An instance of subaqueous differential 
weathering, 355. 
Andrews, William, The diuturnal 
theory of the earth, 50. 
B 
Bendrat, T. A., (C. L. Herrick and). 
Identification of an Ohio Coal Meas- 
ures Horizon in New Mexico, 234. 
Biblioirraphia geologica, 243. 
Blatchley, W. S., Indiana departmentof 
geology and natural resources, 23rd 
annual report, 182. 
Blue Mound quartzyte, G. D. Hubbard, 
163. 
BOse, Emilio, Geologla de los aldredores 
de Orizaba, 315. 
Brigliam, A., 57. 
BrOgger, W. C. 374; 393; 395. 
Buchtel college, burning of, 129. 
Building and ornamental stones of Wis- 
consin. E. R. Buckley, 179. 
Burr, H. T., A new lower Cambrian 
fauna from eastern Massachusetts, 41. 
Call, R. Ellsworth, 395. 
Clark, W. B., Maryland geological sur- 
vey. Vol. Ill, 383. 
Clarke, John M., (and C. Schuchert). 
The nomenclature of the New York 
series of geological formations, 114. 
Classification of igneous rocks accord- 
ing to composition, J. E. Sourr, 210. 
Claypole, E. W.. The earth(iuake of San 
Jacinto, Dec. 25, 1899, KMi, 192. 
Coal in Lower Michigan, 59. 
Comstock, F. M., Example of wave- 
formed cusp at lake George, 192. 
Correlative relations of ct^rtain subdi- 
visions of the Coal Measures of Kan- 
sas, C. R. Koyes, 347. 
COEEESPONDENCE. 
An example of wavo-formed cusp at 
lake George, F. M. Comstock. 192. 
Appendix to a note on the San Jac- 
into earthquake, E. VV. Claypole, 
192. 
Devonische Fischreste, C. R. East- 
man, 391. 
Erosion of mountains in southern 
California, F. B. Wright, 326. 
Mourlon's bibliograpliia geoiogica, 
J. B. Woodworth, 57. 
The causes of ore deposits, C. R. 
Keyes, 323. 
Walcott's view of the Etcheminian, 
G. F. Mathew, 2.52. 
Crosby, W.O., On the origin of pheno- 
crysts and the development of porphy- 
ritic structure, 299; History of tlie 
Nashua valley, 252. 
Daly, R. A., 393. 
Davis, W. M., 129; 393. 
Dawson chair of geology at McGill 
university, 59. 
Dawson, Geo. M., Volume X of tlie Geo- 
logical report of Canada, 177. 
Dean, Basliford, 57. 
Descriptions of new species of fossils 
from the Devonian and Subcarhonif- 
erous of Missouri, R. R. Rowley, 261. 
Devonische Fischreste von der Eifel 
Fr«d V. Huene. 251 ; 391. 
Dictionary of altitudes in the United 
States, Henry Gannett. 121. 
Diuturnal theory of the earth, Wm. 
Andrews, 501. 
Earthquake of San Jacinto, Dec. 25, 
1899, E. W. Claypole, 106, 192. 
Editoeial Comment. 
A white-hot liquid earth and geolo- 
gical time, 310. 
Bibliograpliia geoiogica, 243. 
Geology of New Hampshire, 244. 
Marsh collection of vertebrate fos- 
sils, 171. 
Nepheline Melilite basalt from 
Oahu, Hawaiian islands, 312. 
Recognition of river and flood de- 
posits, 313. 
Traquair on Silurian Fish, 244. 
T)ie George Huntington Williams 
memorial lectureship, 374. 
Erosion of mountains in southern Cali- 
fornia, F. B. Wright, 326. 
Esmeralda formation, IT. W.Turner, 168. 
Example of wave-formed cusp at lake 
George, F. M. Comstock, 192. 
