DONATIONS. 229 



Blake, W. P. Observations on the characters and probable geo- 

 logical age of the Sandstone Formation of San Francisco. 



Observations on the extent of the Gold-region of Cali- 

 id Oregon. 



. On the grooving and polishing of hard rocks and mine- 

 rals by dry sand. 



On the rate of Evaporation on the Tulare Lakes of 



fornia and Oregon. 



California. 



Remarks on the Geology of CaUfornia, from observa- 



tions in connexion with the United States Surveys and Explo- 

 rations for a Railway-route to the Pacific. 



Boulanger et Bertera. Texte Explicatif de la Carte Ge'ologique du 

 Departement du Cher. From the Minister of the Interior of 

 France. 



Cacarrie. Description Geologique du Departement de Maine et 

 Loire. From the Minister of the Interior of France. 



Carpenter, W. B. Researches on the Foraminifera : on the genera 

 Orbiculina, Alveolina, &c. 



Catalogue of the Works exhibited in the British Section of the Paris 

 Exhibition, 1855. From A. Tylor, Esq., F.G.S. 



Conrad and others. Description of the Fossils and Shells collected 

 by W. P. Blake. From TF. P. Blake, Esq. 



Daubeny, C. Address to the British Association. 



Daubree, A. Description Geologique et Mineralogique du Departe- 

 ment du Bas-Rhin. From the Minister of the Interior of 

 France. 



Delesse, A. ^Materiaux de Construction de 1' Exposition Universelle 

 de 1855. 



Hauer, F. R. v. Allgemeiner Bericht iiber die geologischen Arbeiten 

 der Section 4 der K. K. geologischen Reichsanstalt in Sommer 

 1855. 



Das Quecksilberv'orkommen von Gagliano bei Cividale 



in der Provinz Udine. 



. Ueber die Cephalopoden aus dem Lias der Nordost- 



lichen Alpeu* 



Uebersicht der geologischen Verhaltnisse des Erzherzog- 



thum's Oesterreich unter der Euns. 



Horner, G. R. B. Medical Topography of Brazil and Uruguay. 



Hutton, J. A Manuscript Note-book of Geological Observations, 

 by the author of the Huttonian Theorv. From L. Horner, 

 Esq., F.G.S. 



Lea, I. Description of a new Mollusc from the Red Sandstone near 

 Pottsville, Pa. 



