Ilitiüllil : 



siioMAnD. Tertiary and Cretaceous FossHs. 



iitLGAitD. Namrnl Series. 



swALLOw. (.ïrape Culture. 



wisi.iziiSDS. Mastodon. 



iiAWN. The Trias of Kansas. 



siiDMACD and swaf.low. New Fossils. 



PROUT. New Species of Brvozoa. 



Bryozoa. 



sncMABD. Blastoidca, 

 sKVFFAnxii. E^yptian Seal. 

 SHDMARD. Geology of New Mexico. 



Permian Fossils. 



SMiTii. Formation of Hail. 

 wisr.izENüS. Meteorology. 



Journal of the Academy of Natural Sciences of Philadel 

 Ijhia. S'l Series. Philadelphia 1858. Vol. IIT. 4.. 4.°. 



Inhoud : 



j. LEA. Descripiions uf Exoiic Genera and speeies of tlic faniily l'nio- 



nidae. 

 T. A. coNRAD. Obscrvations on a group of Cretaceous Fossil Shells, 



found in Tippah County, Miss., witii dcscriptions of nG new Sficcics. 

 E. HALLOWKL. On ti)c CaUucihranchiatc Urodele Batracliiuns. 

 On Trigonophrys rugiceps. 



Proceedings of the Academy of Natnral Sciences of Pliiln- 

 delphia. Philadelphia 1857— 1S5S. Yol. IX. page 101 — 

 328, Vol. X. page 1—128. 8°. 



Transactions of the Michigan State jVgricuUnral Society : 

 with reports of County Agricultural Societies, for 185Ö. 

 Lansing 1857. Vol. VIII. 8'. 



The American Journal of Science and Arts. Conductcil liy 



B. SILLIMAXS, B. SILLIMANS JE. and J. D. BASA. 2'' Se- 



ries. New Haven 1857—1858. Vol. XXIV and XXV. 8'. 



Report of the Commissiouer of Patents for the Year 1856. 



Arts and Mamifactures. Washingt. 1857. 3 vol. 8°. 

 lieport of fhe Commissioner of Patents fur the Year 1850. 



Agricullnre. Washingt. 1857. 8°. 



