ARCH. 1896. 
VOL. XVII. No. 3. 
THE 
AMERICAN 
GEOLOGIST 
A MONTHLY JOURNAL OF 
GEOLOGY AND ALLIED SCIENCES. 
EDITORS AND PROPRIETORS. 
Charles E. Beecher, New Haven, Conn. 
Samuel Calvin, Iowa City , Iowa. 
John M. Clarke, Albany , N. Y. 
Edward W. Claypole, Akron, Ohio. Persifor Frazer, Philadelphia , Pa. 
Francis W. Cragin, Colorado Springs, Colo. Edward O. Ulrich, Newport, Ky. 
John Eyerman, Easton, Pa. Warren Upham, St. Paul , Minn. 
Marshman E. Wadsworth, Houghton, Mich. 
Israel C. White, Morgantown, W. Va. 
Newton H. Winchell, Minneapolis, Minn , 
Single Numbers, 35 Cents. 
Yearly Subscriptions, $3.50 
GONTENTS: 
Page 
Biographical Sketch of Charles Wach- 
smuth, C. P. Keyes. [Portrait.]. 131 
The Structure of Certain Paleozoic 
Barnacles, J. M. Clarke. [ Plate 
VII.]. 137 
The Mineral Deposits of Eastern Cali- 
Note on the Discovery of a Sessile Con- 
ularia, R. Ruedemann. [Plates 
VIII and IX.]. 158 
A New Titanichthys, E. W. Claypole. 
[Plate X.]. 166 
Thickness of the Paleozoic Rocks in the 
Mississippi Basin, C. R. Keyes . 169 
Microscopic Characters of the Fisher 
Meteorite ( Minnesota No. 1), N. H. 
Winchell. [Illustrated.]. 173 
Page 
Review of Recent Geological Literature. 
Geological Atlas of the United States, 
177.—Ueber Archseische Ergussgesteine 
aus Sm&land, Otto No7'denskjdld, 179.-— 
New and Interesting Species of Paleozoic 
Fossils, S. A. Miller and W. F. E. Gur¬ 
ley , 184.—Geological Survey of New Jer¬ 
sey, Annual Report for 1894, J. C. Smock, 
186.—Geological Biology, an introduction 
to the geological history of organisms, H. 
S. Williams , 187.—Canadian Fossil In¬ 
sects, S. H. Scudder, 189.—The Quarries 
in the Lava Beds at Meriden, Conn., 
W. M. Davis, 189. 
Recent Publications.. 190 
Personal and Scientific News. 
General Notes, 191.—New York Academy 
of Sciences, 193.—Geological Society of 
Washington, 193.—Iowa Geological Sur¬ 
vey, 194. 
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