COMMENCED JANUARY, 1888 . TWO VOLUMES PER YEAR. 
■ ~- THB ^- 
AMERICAN GEOLOGIST. 
1806 . 
The Oldest Exclusively Geological Magazine Published in America. 
EDITORS AND PROPRIETORS: 
Charles E. Beecher, Ph. D., F. G. S. A., Yale’University, New Haven, Conn. 
Samuel Calvin, Ph. D., F. G. S. A., State Geologist, State University, Iowa City, la, 
John M. Clarke, M. A., Dent. Geol. Gesell., Soc. Imp. Min., New York Geol. Survey, 
Albany, N. Y. 
Edward W. Claypole, B. A., D. Sc. (London), F. G. SS., L., E. and A., Buchtel 
College, Akron, Ohio. 
Francis W. Cragin, B. Sc., F. G. S. A., Professor of Geology ana Palaeontology, Col¬ 
orado College, Colorado Springs, Colo. Texas Geol. Survey. 
John Eyerman, Esq., F. Z. S., F. G. S. A., F. A. G. S,, M. I. M. E., ‘Oakhnrst,’ 
Easton, Pa. 
Persipor Frazer, Doct. 6s. Sci. Nat., Officier de 1’ Instruction Publique (France), 
Correspondent Reichsanstalt (Wien), F. G. S. A., Prof, of Chem., Horticul. 
Soc., Philadelphia, Pa. 
Edward O. Ulrich, M. A., F. G. S. A., Palaeontologist, Geol. Surv. of Minn., &c„ 
Newport, Ky. 
Warren Upham, M. A., F. G. S. A., Librarian of the Minnesota Historical Society 
St. Paul, Minn. 
Maeshman E. Wadsworth, M. A., Ph. D., F. G. S. A., F. G. S., Director of the 
Michigan Mining School, Houghton, Mich. 
Israel C. White, M. A., Ph. D., F. G. S. A., Morgantown, W. Ya. 
Newton H. Winohell, M.A.,F.G. S. A.,State Geologist, Univ. Minn., Minneapolis, 
Minn. 
TERMS. 
To Subscribers in the United States, Canada and Mexico. .$3.50 a year 
To other Subscribers in the Postal Union. 4.00 a year 
The AMERICAN GEOLOGIST is issued monthly from the office of publica¬ 
tion at Minneapolis, Minnesota, United States of America. Sixteen 
volumes are nearly completed; the seventeenth begins with the number 
for January, 1896. The magazine has received a cordial welcome and a 
generous support from leading geologists everywhere and it is now rec¬ 
ognized as the exponent of the rapid geological progress that is taking 
place on the continent of North America, including Canada, the United 
States and Mexico. Nowhere else in the world are geologic phenomena 
exhibited on a more extensive scale and nowhere else are results attained 
of greater economic and scientific importance. 
The AMERICAN GEOLOGIST lays before its readers from month to month 
the latest results of geological work. In addition to the longer papers 
it gives synopses of recent geological publications and brief notes on 
current geological events. 
IT IS NOT THE ORGAN OF ANY INSTITUTION, NOR OF ANY SECYSON OF 
THE COUNTRY, NOR OF ANY PARTY. 
The numbers for 1888 will hereafter be sent to new subscribers for $3.50, or bound in 
cloth for $4.50; those for 1889,1890,1891,1892,1893,1894 and 1895 for $2.50 each, or bound 
for $3.50 each. New subscribers who remit $24.50 will receive all back numbers and 
the subscription for 1896. Fifty cents per year postage must be added to these rates 
for subscribers not living in North America. If bound volumes are ordered, the cost 
will be $32. 50, and the transportation must be paid by the subscriber. There are two 
volumes in each year, each volume having over 400 pages. 
SAMPLE COPIES 20 CEfKTS. 
The Geological Publishing Co. 
Minneapolis , Minn., U. S. A., Oct. 1 , 189 i 
European Agent, MR. HENRY CLAYPOLE, 
Manager of the London & Co. Bank, 
f/ SlTTINGBOTJRNE, KENT, En© 
