CONTENTS. 



PAGE 



VII. On the Parallel Roads of Lochaber. By James 

 Thomson, Jun., M.A., Glasgow College. Com- 

 municated by the Author, .... 49 



VIII. On Carbonic Acid as a solvent in the process of Vege- 

 tation. By John Davy, M.D., F.R.S., Lond. & 

 Ed., Inspector -General of Army Hospitals. Com- 

 municated by the Author, .... 61 



IX. Geological Reseai'ches in the Neighbourhood of Cha- 

 mounix, in Savoy, By Alphonso Favre, Pro- 

 fessor of Geology to the Academy of Geneva. 

 (With a Plate.) Communicated by the Author, 69 



X. A Brief Description of some Sepulchral Pits, of Indian 

 origin, lately discovered near Penetanqueshene. 

 By Edward W. Bawtree, M.D., Staff Assistant- 

 Surgeon. Communicated by Sir James Mac- 

 GRiGOR, Bart., F.R.S., &c., Director-General of 

 the Army Medical Department. (With a Plate), 86 



XI. General View of the mode of Formation of Iceland, 102 



XII. 1. On the Cause of the recent Oscillation of the 

 Waters in the Lake Ontario. 2. An account of 

 the extraordinary Agitation of the Sea in Corn- 

 wall and Devon, on Sunday the 23d May 1847. 



3. An Account of four Whirlwinds which passed 

 throught St Just, on the 12th of December 1846. 



4. On the rapid Diminution of the Sand-banks in 

 Mount's Bay. By Richard Edmonds, Jan., Esq., 107 



1. On the Causes of the recent Oscillatidu of the 



Waters in Lake Ontario, . . 107 



2. An Account of the extraordinary Agitation of the 



Sea in Cornwall and Devon, on Sunday the 23d 



of May 1847, 109 



3. All Account of Four Whirlwinds which passed 



through St .Just on the 12th of December 1846, 1 1 1 



4. On the rapid Diminution of the Sand-banks in 



Mount's Bay, . . . . 113 



