OUTLINES OF GEOLOGIC HISTORY 



WITH ESPECIAL REFERENCE TO NORTH AMERICA 



A Series of Essays Involving a Discussion of Geologic Correla- 

 tion, Originally Presented before Section E of the American 

 Association for the Advancement of Science A* A* $* 



GEOLOGISTS and all readers of geologic literature will welcome 

 the publication, in book form, of an important series of essays 

 and discussions on the subject of geologic correlation under the 

 title, Outlines of Geologic History with Especial Reference to 

 North America. The symposium was organized by Bailey Willis, and 

 the papers were originally presented before Section E of the American 

 Association for the Advancement of Science at Baltimore in December, 

 1908. They were first published by the Journal of Geology and are 

 now brought out in book form under the editorship of Rollin D. Salisbury. 



The series as a whole represents the successful execution of the 

 plan on which all the monographs were based — namely, to formulate 

 the principles of correlation as applied to the formations of the various 

 geologic periods. The evolution of floras and faunas has been traced 

 with especial attention to environment and correlation. As originally 

 presented, the papers excited much interest and discussion. They 

 embody the present state of knowledge and opinion concerning many 

 of the fundamental problems of North American geology, and form an 

 admirable supplement to earlier treatises and manuals. 



The value of the book is greatly enhanced by the fifteen paleo- 

 geographic maps by Bailey Willis which accompany the papers. 



316 pages, 8vo, cloth; $1.66 postpaid 



ADDRESS DEPARTMENT P 



THE UNIVERSITY OF CHICAGO PRESS 



CHICAGO, ILLINOIS 



