Vill. 
on the so-called Crotalus durissus, | 
and C. adamanteus of authors, 415. 
Le Conte, Dr. John L., don. to mus., 
Tory WANay Allon Sales 9-0:QVlillon od nia 8 Okoyelc 
to lib., Ixvi.; on some fossil Suiline 
Pachyderms, from Illinois, 3: notice 
of a fossil Dicotyles, from Missouri, 
5; on the difference between primor- 
dial and introduced races, 35; ona' 
natural classification of the Histrini, | 
36; synopsis of the Parnide of the 
United States, 41; synopsis of the) 
Eucnemides of temperate N. Ameri-| 
ea, 45; rernarks on a new locality | 
for Casteroides Ohioensis, 53; on) 
some fossil Pachyderms, from Illi- 
nois, 56; on some Coleoptera, from | 
Missouri and New Mexico, collected 
by Dr. Woodhouse, 65; synopsis of 
the Anthicites of the United States, | 
91; on the Coccinellide of the U. 
States, 129; description of a new 
INDEX. 
117; remarks on some fossil teeth of 
Rhinoceros, from Nebraska, 2; on a 
fossil Turtle, from Nebraska, 34; re- 
marks on a fossil Delphinus, from the 
Miocene of Virginia, anda fossil Cro- 
codilean reptile, from New Jersey, 
35; remarks on Tapirus Haysil, 148; 
remarks on various fossil teeth, 241; 
on some fossil fragments from Nat- 
chez, Miss., 303; observations on re- 
mains of extinct Cetacea, from the 
green sand of New Jersey, and from 
South Carolina and Virginia, 377; 
remarks on a collection of fossil 
Mammalia and Chelonia, from the 
Mauvaises Terres of Nebraska, 392; 
remarks on a fragmeni of a jaw of an 
extinct Saurian, from Prinee Ed- 
ward’s Island, 404: character ex- 
plained of nodular bodies found in the’ 
tails and fins of fishes, from Cold 
Pond, N. H., 433. 
Le Gal, E., don. to lib., xiv. 
Lepsius, Dr. R., don. to lib., xxxi. 
Letters from Individuals— 
species of Trombidium, 145; descrip- 
tion of a new species of Sciurus, 149; 
synopsis of the Scydmenide of the | 
United States, 149; attempt at a 
synopsis of the genus Geomys Raf., 
157; Catalogue of the Melyrides of 
the United States, 163; remarks on 
the genus Dipodomys, 224; on the 
Mexican Ant, 225; descriptions of 
twenty new species of Coleoptera in- 
habiting the United States, 226; 
synopsis of the Silphales of America, 
north of Mexico, 274; synopsis of the 
species of Abrus inhabiting the U. 
States, 287; remarks on the speci- 
mens of Scalops in the collection of 
the Academy, 326; synopsis of the 
Meloides of the U. States, 328; syn- 
opsis of the Atopide Rhipiceride and 
Cyphonide of the United States, 350; 
synopsis of the Endomychide of the 
United States, 357; description of | 
new Coleoptera from Texas, collect- 
ed by the Mexican Boundary Com- 
mission, 439. 
Leidy, Dr. Joseph, don. to mus., xxvii., 
Ixvili.s don. tolib., v., xvill., Xxviii., 
liv.,I'V., lix., lxii., Ixvii.; remarks ona 
fossil vertebra, from Ouachita, La., 
52; osteology of the Hippopotamus, 
52, 53; on the fossil Tortoises, from 
Nebraska, 59; on *“* Red Snow,”’ from 
the Arctic regions, 59; on two crania 
of extinct species of Ox, 71; on the 
Honey Ant, of Mexico, 72; reference 
to a fossil tooth of a Tapir, 106; re- 
marks on the fossil Ox, 117; remarks 
on the fossil Edentata of N. America, | 
Adams, Com., U.S. N., 71. 
Bache, Prof. A. D., 105. 
Baird, Prof. S. F., 438. 
Barry, Rev. C., 433. 
Bischoff, Dr. G. G., 147. 
Blanding, Dr. Wm., 240. 
Boué, Dr. M., 435. 
Boyd, Lieut., U.S., 128. 
Chambers, Dr. R. C., 241. 
Costa, Sig. Achille, 325. 
Cresson, Prof. J. C., 323. 
Curtis, Rev. M. A., 105. 
Daniel, Dr. Wm. F., 71. 
Davis, J. Barnard, 395. 
Dawson, J. W., 325. 
Ducachet, Rev. Dr., 71. 
Dunglison, Dr. R., 240. 
Durand, E., 191. 
Edwards, Amory, 52. 
Ehrlich, Prof., 125. 
Espinoza, Signor Juan, 324. 
Fahnestock, G. W.,' 147. 
Tonto Die, JElS Joy BIS 
Fox, Rev. Charles, 433. 
Frazer, Prof. J. F., 223. 
Gibbes, Dr. R. W., 403. 
Gilman, Charles, 438. 
Gibbons, Dr. H., 304. 
Gistl, Dr. J., 117. 
Grube, Prof. E., 433. 
Haidinger, Wm., 189. 
Hamilton, James M., 378. 
Hartlaub, Dr. G., 325. 
Hoy, Dr. Philo R., 404. 
Kane, Hon. J. K., 438. 
