II CONTENTS. 



PAGE 



V. Meteorological Observations taken at the Ordnance 

 Survey Office, 13 Royal Circus, Edinburgh, dur- 

 ing the Year 1852, 130 feet above the mean 

 level of the Sea. Communicated by Captain 

 James, Royal Engineers, . . . 282 



VI. On the Valuation of Indigo. By Dr Frederick 

 Penny, F.C.S., Professor of Chemistry in the 

 Andersonian University, Glasgow, . . 285 



VII. On the Origin of Stratification. By D. A. Wells, 

 Esq., of Cambridge, United States, North Ame- 

 rica, . . . . .291 



VIII. Relation of the Chemical Constitution of Bodies to 

 Light. By Professor E. N. Horsford of Har- 

 vard, North America, . . . 294 



IX. Notes on the Distribution of Animals available as 

 Food in the Arctic Regions. By Augustus Pe- 

 termann, Esq., F.R.GS., &c, . . 295 



X. The Effect of Heat on the Perpendicularity of Bunker 

 Hill Monument. By Professor E. N. Horsford, 

 of Harvard, North America, . . . 308 



XI. On the Geological Distribution of Marine Animals. By 



Professor Edward Forbes, . . .311 



XII. On the Change of Temperature in Europe, and the 

 Variation of the Magnetic Needle. By Mr G. A. 

 Rowell. With a Map. Communicated by the 

 Author, . . . . .312 



XIII. The Para^enetic Relations of Minerals, . .323 



