Contents. v 
Monthly Authors'' Catalogue of American Geological Literature, 240. 
Correspondence. — On the Occurrence of Cubanite at Butte, Montana. 
H. V. WiNCHELL, 245. — Drift Formations of Long Island. John 
Bryson, 245. — Bison Latifrons and Bos Arizonica, Wm. P. Blake, 
248. — Geology and Geography at the American Association Meet- 
ing. Warren Upham, 248. 
Personal and Scientific Neivs, 266. 
NOVEMBER NUMBER. 
Geological Phenomena resulting from the Surface Ten- 
sion of Water. [Plate VIII.] George E. Ladd 2B7 
The Occurrence of Copper and Lead in the San Andreas 
and Caballo Mountains. [Illustrated.] C. L. 
Herrick 285 
Giants' Kettles near Christiania and in Lucerne. War- 
ren Upham 291 
Origin of the Archean Igneous Rocks. N. H. Winchell. 299 
Glacial Theories — Cosmical and Terrestrial, E. W. 
Claypole 310 
Intraformationul Conglomerates in the Galena Series. 
[Plate IX.] F. W, Sardeson 315 
Editorial Comment. — Drygalski's Glacial Studies in Greenland, 323. 
Revitio of Recent Geological Literature — [New York] Fifteenth An- 
nual Report of the State Geologist, [Prof. James Hall] for the year 
1895, vol. I, 324. — Interglacial deposits in Iowa; a Symposium pre- 
sented at the Iowa Academy of Sciences, Dec. 28, 1897, by Calvin, 
Leverett, Bain, Udden, 326. — Report on a Traverseof the North- 
ern part of the Labrador Peninsula, from Richmond gulf to Un- 
gava bay, A. P. Low, 326. — Text Book of Mineralogy, with an ex- 
tended treatise on Physical Mineralogy. Edward Salisbury 
Dana, 328. — Manual of Determinative Mineralogy, with an intro- 
duction on Blowpipe analysis, Geo. J. Brush; revised and en- 
larged with new tables, by Samuel L. Penfield, 328. 
Monthly Authors' Catalogue of Geological Literature, 328. 
Correspondence. — Glacial Observations in the Champlain-St. Lawrence 
Valley. G. Frederick Wright, 333. 
DECEMBER NUMBER. 
On the Dikes in the vicinity of Portland, Maine. E. C. 
E. Lord. [Plate X.] 335 
Thomsonite and Lintonite from the North Shore of Lake 
Superior. N. H. Winchell 347 
