¥ 
310 Bibliography. 
Heliocentric place of Neptune, by George W. Coaklay.—Note on 
the parallelogram of Forces, by Prof. Peirce—On the orbit of the 
Great Comet of 1843, by Prof. J. S. Hubbard, (continued).—Devel- 
opment ts the Perturbative Function of Planet tary Motion, by Prof. 
B. Peir 
10. Pout! of the Academy of Natural Sciences o Philadelphia.— 
ew 
Part IV, which is just issued, completes the Ist volume of the n 
series in ~ (PP 356.) We give here the contents of the volume. 
art I. . 1847.—1. Roser W. Gisse es, M.D., on the fossil ge- 
nus y lbatii Harlan, (Zeuglodon, Owen,) with a notice of speci- 
mens from the Eocene Green Sand of South Carolina 
2. M. Tuomey, State — of South Carolina.—Notice of the 
discovery of a Cranium of the Zeuglodon, (Basilosaurus.) 
3. Richarp Owen, Esq. Wan bservations on certain fossil 
bones from the collection of the Academy of Natural Sciences of 
Too 
. Joun Cassin.—Description of a new rapacious Bird in the Museum 
of the Academy of Natural Sciences of ‘Philadelphia 
Wivviam GamBet.—Remarks on 8 Birds obsetved in Upper 
California, with descriptions of New Spe 
erpy, M.D.—(1.) History me ae of the Hemipte- 
rous Genus Belostoma. (2.) Miscellanea Zoolo gic 
7. J. L. Le Conte, M.D.—Fragmenta Bricesaiesie. 
Part Il, August, 1848.—8. S. S. Harpeman.—Descriptions of North 
American Coleoptera, chiefly i in Cabinet of J. L. Le Conte, M.D., 
with reference to described speci 
. T. A. Conran. nt Giiereilies on the Eocene formation, and de- 
scriptions oF one hundred and five new fossils of that period, from the 
vicinity of Vicksburg, Mississippi ; i an Appendix. 
Joun Cassin.— — Description of a new Buceros, and a notice of 
= 
oun Cassin pista of aecava new species of the genus 
Icterus, (Briss.,) specimens of which are in the Museum of the Acad- 
emy of Natural — of Philadelphia. 
12. Rosert W. Gisses, M.D.—Monograph of the Fossil Squalide 
of the United States 
13. Tomas Norrat. —Descriptions of Plants collected by William 
Gambel, M.D., in the Rocky og ene: and Upper California. 
Part It. August, 1849. 14. Rosert W. Gispes. — Monograph of 
= Spe Squalide of the United ae 
j' ONRAD.—Descriptions of New Fossil and Recent Shells 
of ihe United States. 
16. 'T. A. Conrap.—Notes on Shells, with descriptions of new Gen- 
era and Species. 
17. Witcbise Gamset, M.D.—Remarks on the Birds of Upper Cali- 
fornia, with Pore no: of new species 
18. Samuet Georce Morron, M M.D.—Additional Observations on & 
new Sites species of Hippopotamus. 
nN Cas 
_ 19. Joun Cassix.—Descriptions of new species of Birds of the 
genera 
he Cuvier, Euplectes, Swainson, and Pyrenestes, Swainson, 
