ii CONTENTS. 



Art. IX. On the Characters and Affinities of certain Genera 

 chiefly belonging to the Flora Peruviana. By Mr 

 David Don, Librarian to the Linnean Society, 

 Member of the Imperial Academy Naturae Curio- 

 sorum, of the Royal Botanical Society of Ratis- 

 bon, and of the Wernerian Society of Edinburgh, 



&c. 112 



X. New Observations on the Blood-like Phenomena ob- 

 served in Egypt, Arabia, and Siberia, with a View 

 and Critique of the early Accounts of Similar Ap- 

 pearances. By Mr C. G. Ehrenberg, - 122 

 XI. Observations on the Greenland Sea, as connected 

 with the late Disasters in Baffin's Bay. By Tho- 

 mas Latta, M. D. Member of the Wernerian So- 

 ciety. With a Map. Communicated by the Au- 

 thor, ----- 136 

 XII. Observations on the History and Progress of Com- 

 parative Anatomy. By David Craigie, M. D- 

 &c. Communicated by the Author, - 146 



XIII. On the occurrence of Chalk and Chalk-flint in Banff- 



shire. By James Christie, Esq. Secretary to 

 the Banff. Communicated by the Author, 163 



XIV. Account of Aerial Shadows seen from the Cairngorm 



Mountains. By John Macphbrson Grant, Esq. 

 jun. of Ballindalloch. In a Letter to. the Editor, 165 

 XV. Description of several New or Rare Plants which 

 have lately flowered in the neighbourhood of Edin- 

 burgh, and chiefly in the Royal Botanic Garden. 

 By Dr Graham, Professor of Botany in the Uni- 

 versity of Edinburgh, - - - 166 

 XVI. Celestial Phenomena from January 1. to April 1. 

 1831, calculated for the Meridian of Edinburgh, 

 Mean Time. By Mr George Innes, Astrono- 

 mical Calculator, Aberdeen, - - 172 

 XVII. Proceedings of the Wernerian Natural History So- 

 ciety, ----- 175 



XVIII. Scientific Intelligence, - - 176 



meteorology. 

 1. Heavy fall of Rain, and frequent appearance of Aurora bo- 

 realis, in September 1830. 2. Water Spout in the Lake 



