CONTENTS. 



ART. XL— Description of Caribbean Miocene Fossils. By Wrn. M. Gabb, . .337 



ART. Xri.— Description of l^ew Species of Fossils from the Pliocene Clay Beds 

 between Limon and Moen, Costa Rica, together with JSTotes on previously 

 known species from there and elsewhere in the Caribbean Area. By Wm. 

 M. Gabb, . , . . . , . 349 



ART. XIII. — The Terrestrial Mollusca inhabiting the Cook's or Harvey Islands. 



By Andrew Garrett, . . . ' . .381 



ART. XIV. — The Placenta and Generative Apparatus of the Elephant. By Henry 



C. Chapman, M.D., . ' . . , . . . . ' . . . . 413 



ART. XY.— The Parasites of the Termites. By Joseph Leidy, M.D., . . . 425 



ART. XVI. — Remarks on Bathygnathus borealis. By Joseph Leidy, Al.D., . . 449 



