TABLE OF CONTENTS. v 



Page 

 Prestwich, Joseph, Esq. On the Age of some Sands and Iron- 

 sandstones on the North Downs : with a Note on the Fossils from 

 Lenham ; by S. V. Wood, Esq 322 



. On the Boring through the Chalk at Harwich 249 



Prlng, J. D., Esq. On the Gravels at Taunton, in Somersetshire. 

 [Abstract.] 164 



Redaway, Mr. W. On the Gold-diggings at Creswick Creek and 

 Ballaarat. [Abstract.] 540 



Rosales, Henrique, Esq. On the Gold-diggings at Ballaarat 543 



Salter, J. W., Esq. On a New Genus of Cephalopoda, Tretoceras 

 (Ort7ioceras bisiphonatum, Sowerby) ; and on the occurrence of 

 the Genus Ascoceras, Barrande, in Britain. (With a Plate.) .... 177 



. On some Remains of Terrestrial Plants in the Old Bed Sand- 

 stone of Caithness : with a Note on the Plant-bearing Devonian 

 Beds of Caithness ; by John Miller, Esq. (With a Plate.) .... 72 



Selwyn, Alfred R. C, Esq. On the Geology of the Gold-fields of 

 Victoria 533 



Smyth, R. Brough, Esq. On the Extinct Volcanos of Victoria, 

 Australia 227 



Sorby, H. C, Esq. On some Peculiarities in the Microscopical Struc- 

 ture of Crystals, applicable to the determination of the Aqueous or 

 Igneous origin of Rocks. [Abstract.] 242 



. On the Microscopical Structure of Crystals, indicating the 



Origin of Minerals and Rocks. (With 4 Plates.) 453 



Spratt, Capt. T. On the Freshwater Deposits of the Levant. 176, 212 

 . On the Geology of the North-east part of the Dobrutcha 176, 203 



Trimmer, Joshua, Esq. On the Upper and Lower Boulder- clays 

 of the Gorlston Cliffs in Norfolk 171 



Annual Report i. 



Anniversary Address xxiv. 



List of Foreign Members cxlvii. 



List of the Wollaston Medallists cxlviii. 



Donations to the Library, and Bibliography 79, 181, 307, 544 



