CONTENTS 



Pages 

 Correlation by Displacements of the Strand-line and the Function 



and Proper Use of Fossils in Correlation. By E. O. Ulrich. 45 1-490 



Correlation and Chronology in Geology on the Basis of Faleo- 



geography. By Charles Schuchert - - - - - - - 491-514 



Methods of Correlation by Fossil Vertebrates. By W. D.Matthew. 515-524 



Principles Governing the Use of Fossil Plants in Geologic Corre- 

 lation. By F. H. Knowlton ^ 525-530 



Silurian Formations of Southeastern New York, New Jersey, and 



Pennsylvania. By Charles Schuchert 531-554 



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