These 3 plates should have accompanied the last numher of^the 

 Journal, but could not be executed in time. The Editor regrets ex- 

 tremely that the Map cannot be coloured as in the original, as, after the 

 impressions were struck off, it was discovered that the paper was not of 

 a quality to receive colours. The Map v^ill serve then, only as indi- 

 cating the general position of the places described in Dr. Malcolmson's 

 Memoir, and will not mark the geological formations. 



E. C. 



