AY, 1559. 
V0L. Ill, No. 5. 
THE 
AMERICAN 
GEOLOGIST. 
A MONTHLY JOURNAL OF 
GEOLOGY AND ALLIED SCIENCES. 
EDITORS AND PROPRIETORS: 
Prof. Samuel Calvin, University of Iowa, Iowa City, Iowa. 
Prof. Edward W. Claypole, Bucfitel College, Akron, O. 
Dr. Persifor Frazer, Franklin Institute, Philadelphia, Penn. 
Dr Lewis E. Hicks, University of Nebraska, Lincoln, Neb. 
i Mr. Edward O. Ulrich, Geol. Survey of Illinois, Newport, Ky. 
Dr. Alexander Winchell, University of Michigan, Ann Arbor, Mich. 
Prof. Newton H. Winchell, University of Minnesota, Minneapolis, Minn. 
}?l<? f/umbers, 35 < 5 ei}ts. Yearly Subscription, $3.50. 
QOflSE]^: 
PAGE 
Ah Pierson James. [Portrait.]. 281 
DRTION OF THE GEOLOGICAL STORY OF 
IE Colorado river of Texas. [Illus- 
ated.] Robert T. Hill. . 287 
jBONIFEROUS GLACIATION IN THE SOUTH- 
IN AND EASTERN HEMISPHERES,—WITH 
>ME NOTES ON THE GlOSSOPTERIS FLORA. 
I). White . .:..... 299 
tIATION EXHIBITED BY A CARBONIC 
iSTEROPOD. [Illustrated.] Charles R. 
eyes . 330 
roRiAL Comment. 
Unconformity at the falls of the 
Montmorenci. ..... 333 
pa<mb 
Review of Recent Literature. 
Examination of water for Sanitary and 
Technical Purposes, Leffman and Beam, 
334.—Bommeloen og Karmoen med om- 
givelser geologisk beskrevne, af dr. 
Hans Reusch, 335.—Shall w r e teach Geo¬ 
logy? A. Winchell , 336. 
Recent Publications . 337 
Correspondence. 
Two systems confounded in the Huron- 
ian, Selwyn . 339 
Personal and Scientific News. ... 340 
THE AMERICAN GEOLOGIST, MINNEAPOLIS. 
iral European Agent, W. P. Collins, 157 Great Portland St., London W. Eng. 
Entered at the Minneapolis post-office as second-class matter. 
