CONTENTS. Ill 



XIV. Notice of the Result of an Experimental Observa- 

 tion made regarding Equivocal Generation. By 

 F. ScHULZE, Berlin, . . . 165 



XV. 1. On the Elevation of Beaches by Tides. 2. On 



Ripple-Mark, . . . . 166 



XVI. On Rippoldsau and its Mineral Waters. By the 

 Rev. Edward Stanley. Communicated by the 

 Author, ..... 171 



XVII. Remarks on the Origin of Amber. By H. R. Gop- 



pert, ..... 172 



XVIII. On the Use of Steam, in the Economising of Fuel, 



By Andrew Fyfe, M. D., F.R. S.E., M. S. A., 173 



XIX. On the Possibility of Elucidating the Natural His- 

 tory of Man by the Study of Domestic Animals. 

 By M, Isidore Geoffrov St Hilaire, 185 



XX. On the Sivatherium, a new fossil Ruminant Genus 

 found in Tertiary Strata in the Valley of the 

 Markanda, in the Sivalik branch of the Sub-Hi- 

 malayan Mountains, . . . 197 



XXI. Respecting some new Remarks on the well-known 

 Phenomenon of the Erosion of the Columns of 

 the Temple of Serapis, at Puozzoli. By M. 

 Capocci, Director of the Observatory at Naples, 201 



XXII. Considerations concerning the Manner in which 

 was formed in the Mediterranean, in July 1831, 

 the New Island which has successively been 

 called Ferdinandia, Hotham, Graham, Nerita, 

 and Julia. By M. Arago, . , 204 



XXIII. On the Stony Matters which are employed in China 

 in the time of Famine, under the name of Flour 

 of Stone. By M. Biot, . . . 208 



XXIV. On the Colossal Fossil Mammiferous Quadruped 



named Dinotheriura Giganteum, . 211 



XXV. Account of the Skull of a Quadrumanous Animal 

 found in the Tertijiry Rocks of tlie Sub-Hima- 

 layan Hills near the Sutlej, . 216 



