GENERAL INDEX. 



427 



GENERAL INDEX. 



Allen, Harrison, Resignation as Cor- 

 responding Secretary, 85. 

 Amendment to By-Laws, IGO. 



Barton, Isaac, Announcement of death 



of, 142. 

 Brewster, Sir David, Announcement 



of death of. 91. 

 Butcher, H. B., List of Birds collected 



at Laredo. Texas, in 1866 and 1867, 



148. 



Committees for 1868, 85. 



Cope, Edw. D., Observations on ver- 

 tebrata from Lower California and 

 Nevada, 2 ; Election as Correspond- 

 ing Secretary, 85 ; Observations on 

 the living inhabitants of caves in 

 South-western Virginia, 85 : Re- 

 marks on a new Eualiosaurian, Elas- 

 mosaurus platyurns, 92 ; An ex- 

 amination of the Reptilia and Ba- 

 trachia obtained by the Orton Ex- 

 pedition to Equador and the Upper 

 Amazon, with notes on other spe- 

 cies, 96 ; On the characters of a 

 new genus of Cheloniidae, 147 ; On 

 the vertebroe of a serpent from the 

 green sand of New Jersey, 147 ; On 

 the fresh-water origin of certain 

 deposits in west New Jersey, 157 ; 

 On extinct Cetacea from the Mio- 

 cene bed of Maryland, 159 ; On new 

 species of extinct Reptiles, 181 ; 

 Second contribution to the history 

 of the vertebrata of the Miocene 

 Period of the United States, 184; 

 On the Crocodilian genus Pero- 

 suchus, 203 ; S3'nopsis of the Ex- 

 tinct Batrachia of North America, 

 208; On Agaphelus, a genus of 

 toothless Cetacea. 221 ; Sixth con- 

 tribution to the Herpetology of 

 Tropical America, 305 ; Remarks on 

 extinct Reptiles, 313; Observations 

 on Reptiles of the Old World, Art. 



11,316; On some Cretaceous Rep- 

 tilia, 233 ; On the Origin of Genera, 

 242. 



Correspondence for 1868, 394. 



Coues, Elliott, A Monograph of the 

 Alcidse, 2 ; List of Birds collected 

 in Southern Arizona, by Dr. E. Pal- 

 mer, with remarks, 81. 



De Serres, Marcel, Announcement of 



death of, 87. 

 Donations to Library, 400. 

 Donations to Museum, 396. 



Earp, Thos., Announcement of death 



of, 93. 

 Election of Officers for 1869, 392. 

 Elections during 1868, 393. 



Gabb, W. M., On Kitchen Middens 

 near San Francisco, 182 ; On Fossils 

 from the Amazon Valley, 183. 



Genth, Dr., Remarks on Tin ore from 

 Missouri, 142 ; On Cupriferous ores 

 in Texas, 227. 



Gilliams, Jac, Anouncement of death 

 of, 86. 



Grubb, Edw. B., Announcement of 

 death of, 1. 



Hagedorn, C. F., Announcement of 

 death of, 93. 



Hawkins, B. Watcrhouse, Proposition 

 to erect skeleton of Hadrosaurus, 

 204 ; Resolution of thanks to, 304. 



Lawrence, Geo. N,, Description of 

 seven new species of American 

 Birds from various localities, with a 

 note on Zonotrichia melanotis, 359. 



Lea, L, Description of nine new species 

 of Unionidae from Lake Nicaragua, 

 Central America, 94 ; Descrifition 

 of sixteen new species of the genus 

 Uuio of the United States, 143; 

 Notes on some singular forms of 

 Chinese species of IFnio, 145 ; De- 



