21 
TEUBNEE & CO., 60, PATEENOSTEE EOW. 
Journal of tlie Academy ,of Natural Sciences of Philadelphia — Continued. 
Additional Species to the List of Mr. Townsend’s Quadrupeds. 
Catalogue of the Crustacea brought by Thomas Nuttall and J. K. Townsend from the 
West Coast of North America and the Sandwich Islands, &c., by J. W. Randall. 
Description of a, New Species of Cypcelus, from the Columbia River, .by J. K. 
Townsend. 
Description of a New Species of Sylvia, from the Columbia River, by the same. 
An Analysis of Marl from New Jersey, by S. S. Haldeman. 
List of Birds inhabiting the region of the Rocky Mountains, the Territory of Oregon, 
and the North-West Coast of America, by J. K. Townsend. 
Note of Sylvia Tolraoei, by the same. 
Description of the White-winged Tanager (Pyranga leucoptera), by J. Trudeau. 
Description of;a Species of Land-Tortoise, from Africa, by Edward Hllaowell, M.D. 
Vol. VIII. Part II. 10 Plates. 8vo, pp. 172 ,to 351. Philadelphia, 1842. 
CONTENTS. 
Officers of the Academy of Natural Sciences of Philadelphia, for the year 1842. 
Some Observations on the Mechanical Structure of Coal, with evidences of the con¬ 
temporaneous origin of its. various kinds, by Walter R. Johnson, A.M. 
Description of three New Species of Unio from the Rivers of the United States, by T. 
A. Conrad. 
Examination and Analysis of Coal found in the Province of Arauco, Coast of Chili, 
thirty miles south of Bio Bio River, by Walter R. Johnson, A.M. 
Description of a New American Species of the Genus Helix, by John S. Phillips. 
Description of twenty-four New Species of Fossil Shells, chiefly from the Tertiary 
deposits of Calvert Cliffs, Maryland, by T. A. Conrad. 
Some Remarks on the Ancient Peruvians, by S. G. Morton, M.D. 
On the relation between the Coal of South Wales and that of some Pennsylvania An- 
thracides, by W. R. Johnson, A.M. 
Description of five New Species of American Fresh-water Shells, by S. S. Haldeman. 
Description of the Nest and Eggs of the Fulica Americana and Anas discors, by George 
C. Leib, M.D. 
Remarks on the so-called Pigmy Race of the Valley of the Mississippi, by S. G. 
Morton, M.D. 
Description of some New Species of Organic Remains of the Cretaceous group of the 
U. S., with a Tabular View of the Fossils hitherto discovered in this Formation, by 
the same. 
Observations on the Silurian and Devonian Systems of the U. S., with Descriptions of 
new Organic Remains, by T. A Conrad. 
Descriptions of Nqw Species of Organic Remains belonging to. the Silurian, Devonian, 
and Carboniferous Systems of the U. S,, by the same. 
Descriptions of New Species of Quadrupeds inhabiting North America, by J. J. 
Audubon, Esq., and the Rev. John Bachman, D.D. 
Description of a New Species'of Chameleon from Western Africa, by E. Hallowell, 
M.D. 
Description of two New Species of the Genus Perea, from the Susquehanna River, by 
S. S. Haldeman. 
Description of a New Species of Cyclops and two Species of Tubifex, by S. S. 
Haldeman. 
Description of two New Species of Fossil Scutellse, from South Carolina, by Edmund 
Ravenel, M.D. 
Description of a New Genus of Serpents from Western Africa, by E. Hallowell, M.D. 
Meteorological Observations made at Philadelphia, during the year 1841, by William 
S. Zantzinger, M.D. 
Journal of the Academy of Natural Sciences of Philadelphia. 4to. New 
Series. 
Vol. I. (1847—1850.) Part I. December, 1847. 
Article 
1. On the Fossil Genus Basilosaurus, Harlan (Zeuglodon, Owen), with a Notice of 
Specimens from the Eocene Green Sand of South Carolina, by Robert W. Gibbes, 
M.D., of South Carolina. 
2. Notice of the Discovery of a Cranium of the Zeuglodon (Basilosaurus), by M. 
Tuomey, State Geologist of South Carolina. 
3. Observations on certain Fossil Bones from the Collection of the Academy of 
Natural Sciences of Philadelphia, by Richard Owen, Esq., F.R.S., Professor of 
Comparative Anatomy in the Royal College of Surgeons, London, &c. &c. 
L 4. Description of a New Rapacious Bird in the Museum of the Academy of Natural 
Sciences of Philadelphia, by John Cassin. 
