SANTO DOMINGO TYPE 

 SECTIONS AND FOSSILS 



PART I 



MOLLUSCA 



Introduction 



The Expedition to Santo Domingo and the results embodied 

 in this memoir were carried on under the auspices of the Sarah 

 Berliner Foundation. This generous gift for the furtherance of 

 women's work in science was made by Mr. Emile Berliner of 

 Washington, in memory of his mother, Mrs. Sarah Berliner, a 

 woman of strikingly strong and noble personality. A grant from 

 this fund has made possible the resumption of paleontological 

 work in Santo Domingo after an interval of more than forty 

 years. 



Additional financial assistance was received through contri- 

 butions from the Veatch Fund for paleontological research. This 

 rendered it possible to send an extra assistant and thus to carry 

 on the field operations with far greater safety and efficiency. 



The object of the expedition was to make careful zonal col- 

 lections of fossils at the various sections visited and to correlate 

 these sections with one another. With these determinations 

 made, a much needed light would be thrown on the general se- 

 quence of Tertiary formations in the Western Hemisphere. 



In addition to more than three hundred species of fossil 

 Mollusca with exact localities, illustrated by photographs and 

 sections, the collections secured by this Expedition included fossil 

 Crustacea, Kchinoderms, Corals, Bryozoa, Foraminifera, and 

 plant remains; also several hundred species of recent land and 

 marine Molluscs fromTurks Island and Santo Domingo; some inter- 



