Ixxx SPECIMEN, &c. 



on the admission of the best botanists, such as Decandolle and 

 Lindley, that much may at present be said on both sides of the 

 question, ' and that the subject is one of sufficient interest, to 

 induce botanists, to bestow upon it the labour requisite for its 

 more complete elucidation. 



1 Some remarks in favour of the supposed connexion between the yegetalion 

 and the geological character of the substratum, may be seen in Loudon's Ma- 

 gazine, by W. Thomson, and a reply to them in Jameson's New Philosophical 

 Journal, vol. ii. for 1830, by D. A. Murray, of Aberdeen. 



