DONATIONS, 61 



Ponzi, Prof. Giuseppe. Descrizione della Carta geologica della 

 Provincia di Viterbo. 



Sopra un nuovo Cono Volcanico rinvento nella Val di 



Cona. 

 . Sulla Storia fisica del Bacino di Roma. 



Ringgold, Commander. Memoir and Maps of California. 



Salter, J. W. On the Lowest Fossiliferous Beds of North Wales, 

 1852. 



Sedgwick, the Rev. Prof. A. Geology of the Lake District of Cum- 

 berland, "Westmoreland, and Lancashire. 



Sorby, H. C. On the Origin of Slaty Cleavage. 



Tate, George. The Fossil Flora of the Mountain Limestone For- 

 mation of the Eastern Borders. 



Vogel, Dr. A., Jun. Ueber den Chemismus der Vegetation. Frotri 

 the Royal Academy of Munich. 



Westwood, J. O. Addresses at the Anniversaries of the Entomolo- 

 gical Society, 1852, 1853. 



