VI PREFACE. 



of his observations, he humbly trusts that he has con- 

 tributed to the progress of the art. 



In adding to his original plan two chapters on the 

 Arboretum and the Pinetum, the author has sought to 

 supply a want in regard to ornamental collections of 

 trees^ which is becoming daily more apparent. So far 

 as his limited space has allowed, he has endeavoured to 

 treat these subjects on the principles both of science 

 and taste ; and he hopes that the botanical information, 

 which he has drawn from the best sources, though it 

 may be uninteresting to the general reader, will not be 

 unacceptable to the lovers of these pleasing departments 

 of Arboriculture. 



Edinburgh, August, 1852. 



