av ADVERTISEMENTS. 
‘COMMENCED JANUARY, 1888. TWO VOLUMES PER YEAR. 
-THE 
AMERICAN GEOLOGIST, 
S96. 
The Oldest Exclusively Geological Magazine Published in America. 
EDITORS AND PROPRIETORS: 
‘CHARLES E. set ig“ Ph. D., F. G. S. A., Yale University, New Haven, Conn 
Samvet Carvin, Ph, D, F. "a S.A aa Gece State redent Iowa Ci ity, Ia. 
-Jonn M. Cuarke, M. A., Deut. Gooi Gessell., Soc. Imp. Min ig York Geol. Survey, Albany, N.Y. 
‘EDWARD Se CLAYPOLE, gi A., D. Se. (Lo ondon), F. G. SS., L., E. and A., Buchtel College. fete 
Fairis W. Craain, B. Se., F. G. S. A., Professor of Geology and Palæontology, Colorado¿College, 
Colorado S rings, Colo. Texas Geol. Survey. 
S. 
Joun Erermay, Esq., F. . 5. A., F. A. G. S., M. I. M. E., ‘Oakhurst,’ Easto 
IPERSIFOR FRAZER, Doct. es. ‘Bei. Nat., Officier de l’ Instruction Boys, ue (France), Correspondant 
eichsanstalt (Wien), F. G. S. rs Prof, of Chem., Hort 1 Been oka io 
eEpwarp 0. ULRICH, M. go A (AS one ay Geol. Biles v. of Minn., &c. ‘ee rt, Ky. 
‘WARREN baba om > @. S. A. , Librarian n of the Minnesota Historical $ Bose, St. Paul, Minn, 
Mars E. M.A D., F. G. 8. A, F. G.8., Dir the Michigan 
nin my ay gs Bg Mich, 
tennis, 0: Wuire, M. A., Ph. D., F. G. S. A., Mor organtow 
Newton H. Wincuert, M M. A., T G.S. A. , State Gealogiat: ‘Univ Minn, , Minneapolis, Minn. 
TERMS. 
To Subscribers in the United States, are and sc ‘ ‘ : $3.50 a year 
‘To other Subscribers in the Postal Uni ` ; -  . 4,00 a year 
The prea th 1 k issued monthly from the office of Aperan n 
Minneapolis, Minnesota, United States of America. Sixteen volumes are 
pleted; the eme a begins with the nu for s Rg 18 he lbi He 
iv al wel erous support from leading geologists everywhere and 
it is now reco e exponent of the eological progress that is taking place 
on the continent of North America, including Canada, the United Stat d Mexic 
Nowhere else in the world are logic phenomena exhibited on a more extensive scale 
and nowhere else of nomic and scienti 
e AMERICAN Sight! ahd lays before its readers from month to month wr 
latest results of geologica In addition to the longer papers it — synopses 
recent geological Sabi erlin nie? brief notes on current geological even 
IT IS NOT THE ORGAN OF ANY INSTITUTION, NOR OF ANY SECTION OF 
E COUNTRY, NOR OF ANY PARTY. 
numbers for 1 will hereafter be sent to new subscribers fi age Ay di 
The $4.50; 
those for 1889, 1890, 1891, 1892, 1893, 1894, and 1895 fo Aege gath, or bound fi New subscribers 
who o remit $24.50 will receive = back numbers an tion for 1896. Fifty oo cenis per year post: 
must be added to t has phe ‘or subscribers not big” in E NO Nob America. If bound volumes are orde: 
theScost will be $32.50 and the bri i ion must be paid by the subscriber. There leone two volumes in 
each year, each volume h having over 400 pages, 
SAMPLE COPIES 20 CENTS. 
THE GEOLOGICAL PuBLISHING CO., 
Minneapolis, Minn., U. S. A., Jan. 1, 1896. 
European Agent, MR. HENRY CLAYPOLE, 
Manager of the London & Co. Bank, 
SITTINGBOURNE, Kent, ENG. 
