CONTENTS. XVni 



The biologic character and geologic correlation of the sedimentary 

 formations of Panama, etc. — Continued. 

 Outline of the geologic history of the perimeters of the Gulf of Mexico and 



the Caribbean Sea 596 



Geographic relations of the three Americas 597 



General relations 598 



Tectonic Provinces 599 



Bahamas 599 



Atlantic and Gulf Coastal Plain 600 



Mexican Plateau 600 



Oaxaca-Guerrero 600 



Yucatan 601 



Guatemala-Chiapas 601 



Cuba 601 



Haiti, northern part 601 



Honduras and the Jamaican Ridge 602 



Haiti, southern part, Porto Rico, and the Virgin Islands. . 602 



Saint Croix 603 



Costa Rica-Panama 603 



Andes 603 



Maritime Andes 604 



Caribbean Islands 604 



Barbadian Ridge 604 



Caribbean Arc 604 



Aves Ridge 604 



Paleogeographic summary 604 



Late Paleozoic 605 



Triassic, Jurassic, and Cretaceous 606 



Eocene and Oligocene 607 



Miocene 607 



Pliocene and later 609 



Tabular summary of some of the important events in the geologic 



history of the West Indies and Central America 611 



