COiMENTS 



VOLUME T H 1 R 1 ) 



By William Coopkr. 



PAGE 



A Rkport on some Fossil Bones of the Megalo^vx from Vir- 

 ginia; dec. ...------ 166 



By William Darlington. 

 Hkmarks on the Prunus Americana of Marshall - ' - - 87 



By James E. Dekay. 



On the Remains of extinct Reptiles from New Jersey; and on 



(he occurrence of Coprolite in the same locality - - 134 



ObservatiojNS on a Fossil Jaw of a species of Gavial front 



West Jersey - . . . 158 



By Asa Gray. 



A Monograph of ihe North American species of Rhynciios- 



pora - . - . 191 



A Notice of some new or rare Plants of the interior of the State 



of New- York - - . - 221 



By John Le Conte. 



Descriptions of the Species of North American Tortoises - 91 



Description of a new Species of the Order Rodentia - - 132 



Observations on the United States species of Pancratium 142 



