Commenced January, 1888 Two volumes per year 



THE 



American Geologist 



THE OLDEST AMERICAN GEOLOGICAL MAGAZINE 



TER.MS 



To Subscribers in the United States. Canada, and Mexico. $3.50 a year. 

 To other Subscribers in the Postal Union 4-00 a year. 



Back volumes are sold at $1.25 in North America, and at $1.50 

 per volume, postage included, to Europe. 



Geologists who purchase the full set will receive the current 

 year's issues free of cost. Each volume contains at least 400 pages, 

 and concludes with a full index. 



The American Geologist is devoted to American geology 

 exclusively. It contains each month a list of new American geo- 

 logical literature. Its editors are well-known geologists, resident 

 in the United States, viz: 



It is not the organ of any institution nor of any party. Its 

 ages are free and hospitable to all men and all opinions. It aims 

 3 represent the progressive spirit of American geology. 



Subscriptions begin Jan. i, or July i, each year. 



Sample copies. 20 t 



THE GEOLOGICAL PUBLISHING COMPANY 



MINNEAPOUS. MINN.. U.S.A. 



N.B. Cktcks on local banks must indud* ten cms for txckmg: 



