INDEX TO VOL. XIX. 
A complete oil-well record, I. C. White, 
422. 
Age of the California Coast ranges, F. 
L. Kansome, 66. 
Age of the (jreat Lakes of North Ameri- 
ca. Alexander X. Winchell, b36. 
Amcu'ican Institute of Mining Engineers, 
291. 
Ancient volcanic rocks of South Moun- 
tain, Florence Bascom, 139. 
Andersson, Johan G.. Cambrisohe und 
siluri.sche phosphoritfiihrende Ges- 
teine aus Scliweden, 137. 
A new Dinichthys — Dinichtliys kepleri, 
E. W. Claypole, 322. 
An important aid to the investigator 
and general student, 209. 
Artesian waters of a portion of the Da- 
kotas, N. H. Darton,274. 
Artesian waters of Illinois, Frank Lev- 
erett, 418. 
Bascom, F., Relation of the streams in 
the neighborhood of Philadelphia to 
the Rryn Mawr gravel. 50; Ancient vol- 
canic rocks of Soutli Mountain, 139. 
Bavley, W. S., Summary of progress in 
petj-ography in 1896, 3.50. 
Bibliography of Missouri geology, C. R. 
Keyes. 63. 
Bolton, Herbert, 292. 
Berkey. C. P., (with J. H. Eby) Occur- 
rence of copper minerals in hematite 
ore, Montana mine, Soudan, Minn., 
417. 
California Academy of Sciences, 365. 
Cambrian rocks of Pennsylvania, C. D. 
Walcott, 64. 
Changes of level in the B(>rmuda islands, 
R. S. Tarr. 293. 
Clark, W. B., Eocene deposits of the 
middle Atlantic slope, 64. 
Contributions to the Cretaceous paleon- 
tology of the Pacific coast, T. W. Stan- 
ton, 63. 
Correspondence, 66, 222, 290, 351, 422. 
Claypole, F. W., A new Dinichthys— 
Dinichthys kepleri, 322. 
Cragin, F. W., Observations on the Cim- 
arron series, 351. 
Crosbv,W. O., Origin of Pegmatite (with 
M. L. Fuller). 147. 
D 
Darton, N. H., Artesian water of a por- 
tion of the Dakotas, 274. 
Dawson, (i. M., Snnuiiarv report, Geol. 
Surv. Can. for 1,S96, 117. 
Diller, J. S., Hornblende basalt in north- 
ern California, 253. 
Disseminated lead ores of Southeastern 
Missouri, Arthur Winslow, 63. 
Distribution of Cambrian and Silurian 
formation in Siberia, Baron Toll, 138. 
Dodge, R. E , 292. 
Eby, J. H., (with C. P. Berkey) Occur- 
rence of copper minerals in liematite 
ore, Soudan, Minn., 417. 
Editorial Comment— 
An important aid to the investigator 
and general student, 209. 
Natural Science, 343. 
Synopsis of the drift deposits of Iowa 
270. 
Elementary Geology, R. S. Tarr, 277. 
Eocene deposits of the middle Atlantic 
slope, W. B. Clark, 64. 
Eskers indicating stages in the Kansan 
epoch in northern Illinois. O. H. Her- 
shey, 197, 237. 
Evidence of current action in the Ordo- 
vician of New York. R. Ruedemann, 
367. 
Evidence of glaciation in Labrador and 
BafKn Land, R. S. Tarr, 191. 
Explanation by Dr. Grimsley, 222. 
Faunas of the Paradoxides beds of North 
Ara(a-ic!i,G. F. Matthew. 62, 396. 
Fossils. Mastodon, americanus, 6^i; 
Dinichthys kepleri, 322; Orthis testu- 
dinaria, 91. 
Fox islands of Maine, G. O. Smith, 214. 
Frazcir, P., TaV)les for the determination 
of minerals by physical properties, 221. 
Fuller, M. L.. (with W. O. Crosby) Origin 
of pegmatite, 147. 
Galena and Macpioketa series, F. W. 
Sardeson, 11, 91,180,330. 
Geikio, Sir Archibald, 223, 365; visit to 
America, 424. 
Genesis of Claystones, H. W. Nichols, 
324. 
Geological Society of America, 145. 
Geological Survey of Canada, Summary 
rei)ort for 1896, 417. 
(ieological Survey of Kansas, 272. 
Geological Survey of Marylan<l. 67, 426. 
Geological Survey of Missouri, C. R. 
Keyes. 3.50. 
Geology of a typical mining camp in 
New Mexico, C. L. Herrick,256. 
(icology of Minne.sota, vol. Ill, part if of 
l-'inal Rei>ort. 347. 
Gilbert, (i. K., Underground waterof the 
Arkansas valley, 57. 
