628 T. W. VAUGHAN GEOLOGIC HISTORY OF CENTRAL AMERICA 



sive periods of emergence and submergence of the land and the crustal 

 deformation, folding and faulting, concomitant with changes of that 

 kind. Comparison of the table showing the correlation of the Tertiary 

 formations of Panama with the tabular summary will reveal that the 

 story told by the two tables is essentially identical, the erosion intervals 

 and the marine formations in the correlation table representing respec- 

 tively the i^eriods of emergence and the j)eriods of submergence in the 

 tal)ular summary. 



