1 CONTENTS. 



PAOF. 



IV. On the ComparatiTO Value of different Kinds of Coal 

 for the purpose of Illumination ; and on Methods 

 not hitherto practised for ascertaining the Value 

 of the Gases they afford. By Andrew Fyfe, 

 M.D., F.R.S.E., F.R.S.S.A., Professor of Che- 

 mistry, King's College University, Aberdeen, &c. 

 Communicated by the Royal Scottish Society of 

 Arts. (Continued from p, 49), . . . 267 



V. On the Glaciers and Climate of Iceland. By W. Sar- 

 TORius VON Waltershausen. (Continued from 

 p. 140), 281 



VI. Of the Source of Motions upon the Earth, and of the 

 means by which they are sustained. By Robert 

 E. Brown, M.D., Edinburgh. Communicated by 

 the Author. (Continued from p. 155), . . 302 



VII. Account of the Proceedings of the Geological Society 

 of France and Ireland for 1847. By Sir Henry 

 DE LA Beche, President of the Geological Society 

 of London. (Continued from p. 163), . . 311 



VIII. On the Metalliferous Deposits of the Malay Peninsula, 332 



IX. Anniversary Address, for 1848, to the Ethnological 

 Society of London, on the recent Progress of 

 Ethnology. By the President, James Cowles 

 Prichard, M.D„ F.R.S., Member of the Insti- 

 tute of France, &c. Communicated by the Society, 336 



X. On the Continuity of Metalliferous Repositories in 



Depth. By M. Amedee Burat, . . . 346 



XI. On the Vegetation of the Carboniferous Period, as 

 compared with that of tho present day. By Dr 



