948 
U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT, 
Philadelphia —Continued— 
Cassin. —Descriptions of birds of the genera Laniarius, Dicrurus, Graucalus, Manama, and Ficus, specimens of 
which are in the collection of the Academy of Natural Sciences of Philadelphia. By John Cassin. V, December, 
1852, 347. 
Cassin. —Descriptions of new species of Ilirundinidae and PsiUacidae, specimens of which are in the collection 
of the Academy of Natural Sciences of Philadelphia. By John Cassin. V, June, 1853, 3G9. 
Cassin. —Synopsis of the species of Falconidae which inhabit America north of Mexico, with descriptions of new 
species. By John Cassin. VI, Dec., 1853, 451. 
Cassin.—R emarks on birds from the arctic regions, presented by Dr. Kane. VI, June 1852, 107. 
Cassin. —Description of new species of birds, specimens of which are in the collection of the Academy of Natural 
Sciences of Philadelphia. By John Cassin. VI, Oct., 1852, 184. 
Cassin. —Remarks on the appearance of Loxia leucoptera, in great numbers in the vicinity of Philadelphia. VIII, 
Dec., 1854, 203. 
Cassin. —Remarks on Crex pratensis, a specimen of which was obtained from Salem, New Jersey. VII, Jan., 
1855, 265. 
Cassin. —List of pigeons of the genus Carpophaga, in the collections of the Academy of Natural Sciences of 
Philadelphia, and of the United States Exploring Expedition, Washington ; with descriptions and notices of new 
and little known species. By John Cassin. VII, Dec., 1854, 227. 
Cassin. —Notes on North American Falconidae, with descriptions of new species, (Buteo calurus, elegans and 
oxyplerus.) By JonN Cassin. VII, Feb., 1855, 277. 
Cassin. —Reference to several species of geese and other birds from the Falkland Islands, alluded to in a letter 
of Capt. Burnsee. By John Cassin. VII, April, 1855, 289. 
Cassin. —Descriptions of new species of birds from Western Africa, in the collection of the Academy of Natural 
Sciences, Philadelphia. By John Cassin. VII, April, 1855, 324. 
Cassin. —Notices of some new and little known birds in the collection of the United States Exploring Expedi¬ 
tion, and the collection of the Academy of Natural Sciences of Philadelphia. By John Cassin. VII, Dec. 1855, 438. 
Cassin. —Notes on North American birds in the collection of the Academy of Natural Sciences, Philadelphia, 
and National Museum, Washington. By John Cassin. VIII, Feb. 1856, 89. 
Cassin. —Descriptions of new species of African birds in the Museum of the Academy of Natural Sciences, of 
Philadelphia. Collected by Mr. P. B. Du Chaillu in Equatorial Africa. By John Cassin. VIII, Aug. 1856, 156. 
Cassin. —Descriptions and notes on birds of the collection of the Academy of Natural Sciences of Philadelphia, 
and in the National Museum, Washington. By John Cassin. VIII, Oct. 1856, 253. 
Cassin.— Catalogue of birds collected at Cape Lopez, Western Africa, by Mr. P. B. Du Chaillu, in 1856, with 
notes and descriptions of new species. By John Cassin. VIII, Dec. 1856, 316. 
Cassin. —Notes on the North American species of Archibvteo and Lanius, and description ot a new species of 
toucan, of the genus Selenidera. By John Cassin. IX, Dec. 1857, 211. 
Cassin. —Catalogue of the Vulluridae in the collection of the Academy of Natural Sciences of Philadelphia. By 
John Cassin. 
Cassin. —Catalogue of the Ilirundinidae in the collection of the Academy of Natural Sciences of Philadelphia. 
By John Cassin. 
Cassin. —Catalogue of the Slrigidae in the collection of the Academy of Natural Sciences of Philadelphia. By 
John Cassin. 
Cassin.- —Catalogue of the Halcyonidae in the collection of the Academy of Natural Sciences of Philadelphia. 
By John Cassin. Nov. 1, 1852. 
Couch, Lt. D. N. — Descriptions of new birds of northern Mexico. VII, April, 1854, 66. 
Dudley, W.—Description of a species of crane found in Wisconsin, presumed to be new. VII, April, 1854, 64, 
(Grus lioyanus.) 
Gambel. —Descriptions of some new and rare birds of the Rocky Mountains and California. By Wm. Gambel. 
(Picus nutlalii, Parus montanus, Fringilla blandingiana. Lophortyx gambelii.)l, April, 1843, 258. 
Gambel. —Descriptions of new and little known birds, collected in Upper California. By Wm. Gambel. II, 
Aug. 1845, 263. 
Gambel. —Remarks on the birds observed in Upper California. By William Gambel. Accipilres, IV, April, 
1846, 44 ; Passeres, III, Oct. 1846, 110 ; III, Feb. 1847, 154; April, 200. 
Gambel.— On an albino specimen of Muscicapa virens from Liberty county, Georgia, and a specimen of wood¬ 
pecker, Picuspubescens, but probably a new species. By Wm. Gambel. Ill, Oct. 1847, 278. 
