174 



Smithsonian contributions to Knowledge. Vol. VIII. 

 Washington 1856. 



Journal of the slcademy of natural sciences of Phila- 

 delphia. New Ser. Vol. III. Part. II Philadelphia 1855. 



Proceedings of the Academy of natural sciences of Phila- 

 delphia. Vol. VII No. 8 -12. 'Vol. VIII. No. 1—2. 1855-56. 



Report of the Commissioner of patents for the Year 185 4. 

 Washington 1855. 



Blake. Observations on the extent of the Goldregion of 

 California and Oregon Washington 1855. 



Blake. Description of the fossils and shells collected 

 in California. — Separatabdruck. 



Blake. On the rate of evaporation on the Tulare lakes 

 of California. — Separatabdruck. 



Blake. On the grooving and polishing of hard rocks 

 and minerals by dry sand. — Separatabdruck. 



Blake. Notices of remarkable strata containing the re- 

 mains of Infusoria and Polythalamia in the tertiary forma- 

 tion of Monterey, California. — Separatabdruck. 



Blake. Observations on the characters and probable geo- 

 logical age of the Sandstone formation of San Francisco. 



Trask. Report on the Geology of Northern and Southern 

 California. 



Annales des mineS. Ser. V. Tom. VII. Livr. 4, 5, 6 et 

 Tom IX. Livr. 1, 2, 3. 



Quarterly Journal of the Geol. Society. London 1856. 

 Vol. XII. No. 48. 



Jahrbuch der geologischen Reichsanstalt. Wien 1856. No. 1. 



Petermann. Mittheilnngen aus J. Perthes geographischer 

 Anstalt. 1856. No. XL u. XII. 



Bulletin de la Societe geologique de France. II. Ser. 

 Tome XII. feuilles 61—65, Vorne XIII. feuilles 8-19. 



.Württembergische naturwissenschaftliche Jahreshefte. Jahr- 

 gang 10 Heft 3, Jahrgang 12 Heft 3, Jahrgang 13 Heft 1. 



Herr G. Rose sprach über die heteromorphen Zustände der 

 kohlensauren Kalkerde.*) 



Herr Ewald sprach über das Hackelgebirge in der 

 Provinz Sachsen. 



*) S. diese Zeitschrift Bd. VIII. S. 543. 



