IV. 



INDEX. 



fresh water shells of California, by I. 

 Lea, 76 ; a new species of Triquetra, 

 ib., 76 ; a new genus of Naiades, ib., 

 76 ; notice of remains of extinct mam- 

 malia, discovered by Dr. Hayden in 

 Nebraska, by J. Leidy, RI. D., 76 ; a 

 a new snake from Illinois, R. Kenni- 

 cott, 77 ; thirty new species of fossil 

 Acephala and Gasteropoda from Ne- 

 braska, by Messrs. Meek & Hayden, 

 77 ; on fossil remains of a Seal from 

 Ottawa river, U. C, by J. Leidy, M. 

 D., 77 ; on several new genera and 

 species of fossil fishes of carbonifer- 

 ous strata, Ohio, by J. S. Newberry, 

 M. D., 78 ; Plantae Kaneanae Arcticae 

 at Polaris, by E. Durand, lOl ; on 

 new articulata, by A. Sager, 102 ; on 

 four new exotic Uniones, by L Lea, 

 102; thirteen species exotic Peristo- 

 mata, ib., 104 ; on Synopsis Fungo- 

 rum in America, by Messrs. Berke- 

 ley & Curtis, 104 ; on new species 

 fossil Acephala and Gasteropoda from 

 Nebraska, by Messrs. Meek & Hay- 

 den, 105; contributions to the Ich- 

 thyology of west coast U. S., by C. 

 Girard, M. D., 105 ; on Ceratites, by 

 Prof. L. Harper, 105 ; examination of 

 meteoric iron from Xiquipilco, by W. 

 .T.Taylur,]05; two new Urodeles from 

 Georgia, by E. Hallowell, M. D., 

 105 ; new gen. and sp. Urodela of U. 

 S. Exploring Expedition, by C. Gi- 

 rard, M.D., 139; fifteen new species 

 exotic Melaniana, by I.Lea, 139; new 

 sp. Hyla, by J. L. LeConte, M. D., 

 140; notes on new reptiles in A. N. 

 S., by E. Hallowell, M. D., 141 ; on 

 new sp. African birds in A. N. S., 

 from P. DuChaillUjby J. Cassin, 144 ; 

 on remains of extinct Vertebrata, by 

 J. Leidy, M. D., 161 ; on Cyprinoid 

 fishes of fresh waters west of Missis- 

 sippi, &c., by C. Girard, M. D., 162 ; 

 on the Byssus in genus Unio, by I. 

 Lea, 163; Synopsis of the Melolon- 

 thidae,by J. L. LeConte,M.D.,215 : 

 on genus Salmo in California, by C. 

 Girard, M. D., 215 ; extinct verte- 

 brata of N. Jerst^y from Prof. Cook, 

 by J. Leidy, M. D., 2l5 ; new 

 species of birds in Nat. Mus. and in 

 Mus. A. N. S., by J. Cassin, 216; 

 on reptiles in A. N. S., by E. Hal- 

 lowell, M. D., 216; on Dr. Ham- 

 mond's reptiles from Kansas and Ne- 

 braska, ib., 216; on extinct Verte- 

 brata discovered by Prof. E.Emmons, 

 by J. Leidy, 216; on extinct fishes 



discovered by J. E. Evans, M. D. . 

 ib., 216 ; on new species Tanager . 

 by Mr. Sclater, 259 ; eleven new sp . 

 Uniones from Georgia, by I. Lea, 

 259; existing Moliusca in Little 

 Lakes, by J. Lewis, M. D., 259 ; oii 

 a new bird of genus Campylorhyn- 

 chus of Spix, by P. L. Sclater, 260 ; 

 birds of Southern Indiana, by R. Hay- 

 mond, 260; notice of remains of two 

 sp. Seal, by J. Leidy, M. D., 260 ; 

 new fossil Moliusca of Nebraska,with 

 a catalogue, by Messrs. Meek & Hay- 

 den, 269; new and remarkable genus- 

 Ranidae from river Parana, by E. Hal- 

 lowell, M. D., 261 ; remarks on ex- 

 tinct sp. fishes, by J. Leidy, M. D.. 

 299 ; classification of the vegetable 

 kingdom, by T. G. Hilgard, M. D., 

 300; on extinct turtles of N. Jersey, 

 by J. Leidy, M. D., 300 ; on Dr. 

 Heermann's collection of Texan rep- 

 tiles, by E. Hallowell, M. D., 301; 

 on extinct Vertebrata discovered by 

 F. V. Hayden, by J. Leidy, M. D., 

 301 ; catalogue of birds collected by 

 Mr. DuChaillu at Cape Lopez, by J. 

 Cassin, 301 ; description of three new 

 genera and twenty-three new sp. of 

 tertiary fossils from California and 

 one from Texas, by T. A. Conrad, 

 301. 



Committees : on letters of Dr. Lewis. 

 259 ; on letters of Prof. Oldham anr! 

 of T. Biddle, Jr., 260. 



Committees, election of standing, 3. 



Clanton, S. W., M. D., don. to mus... 

 xix. xxvi. 



Curtis & Berkeley, don. to lib., xxiv. 



Coates,B. H., M. 1)., don. to lib., xviii. 



Canadian Institute, don. to lib., xvii. 



Cassin, John; notes on N. American 

 birds in collection of A. N. S. and 

 Nat. Mus., 39 ; resolutions by, 76, 

 77, 143 ; descriptions of new sp. Afri- 

 can birds in mus. A.N. S., collected 

 by Mr. P. B. DuChaillu in Equatorial 

 Africa, 156; descriptions and notes oii 

 birds in col. A. N. S. and in Nat. 

 Mus., 253 ; letter from Mr. Du- 

 Chaillu, 300; catalogue of birds col- 

 lected at Cape Lopez, W. Africa, by 

 Mr. P. B. DuChaillu, in 1856, &c., 

 316. 



Camac, W., M. D.,don. to mus., iv. 



Corse, Dr., don. to mus., ix. 



Carson, J., M. D., 139, 261 : don. to 

 mus., ix. 



Coppedge, O. D., don. to mus., xxvii. 



Chandler, W. P., don. to mus., xxviii. 



