CONTENTS. 



PAOB 



Art. I. Obituary Notice of Lieutenant George Augustus 

 Frederick RuxTON. By Dr King. Communicated 

 by the Author, 197 



II. On Ancient Sea-Margins, with Observations on the 



Study of Terraces. By James D. Dana, Esq., 206 



III. On the Tides, as illustrative of Geological Pheno- 



mena, ....... 221 



IV. On the Variations of certain Metalliferous Repositories 



in Depth. By M. Amedee Burat, . . 227 



V. Notice of a Flood at Frastanz, in the Vorarlberg, in 

 the Autumn of 1846. By William Brown, Esq. 

 Communicated by the Author, . . . 238 



VI*. Palseontological Notes. By Hermann t. Meyer» 245 



VII. Address delivered by the President (Sir J. F. W. 

 Herschel, Bart.) on presenting the Honorary 

 Medal of the Astronomical Society to William 

 Lassell, Esq., of Liverpool, . . . 260 



VIII. On the Motion of the Glacier of the Pindur in Ku- 



maon. By Lieutenant R. Strachey, Engineers, 258 



IX. The Gum Kino of the Tenasserim Provinces. By the 



Rev. F. Mason, 262 



X. On the Physical and Geographical Distribution of the 



Birds of Ireland, 264 



