60 



Hr. Prof. E. A. Scharling foreviste Inosit fremstillet af 

 Frugterne af Cereus Pitahaya. 



Hr. Prof. Hannover foreviste forskjellige ved Hjelp af Ky- 

 mographien udførte Kurvetegninger. 



I Selskabet blev fremlagt: 



Fra Smithsonian Institution i Washington. 



Smithsonian Contributions to Knowledge, Vol. VIII. Washington 



1856. 

 List of foreign correspondents of the Smithsonian Institution. 



Fra tlie Secretary of War i Washington. 

 Report of explorations and surveys to ascertain the most prac- 

 ticable and economical route for a railroad from the Mis- 

 sisippi River to the pacific Ocean; 1853—54, Vol. I. Wa- 

 shington 1855. 



Fra Ordnance Bureau i Washington. 

 Report of experiments on the strenght and other properties of 

 metal for cannon. Philadelphia 1856. 



Fra F. W. Blahe i Washington. 

 Description of the Fossils and Shells, collected in California. 



Washington 1855. 

 On the grooving and polishing of hard rocks and Minerals by 



dry Sand. By William P. Blake of Washington. 

 On the rate of evaporation on the Tulare lakes of California. 

 Notice of remarkable strata containing the remains of infusoria 



and polythalamia in the tertiary Formation of Monterey 



California. 



Fra editors of American Journal. 

 The American Journal of Science and arts, Vol. XX Nr. 58—60, 

 1855. Vol. XXI Nr. 61—63, 1856. New Haven. 



