Vlll ADVERTISEMENT. 



the work of standard accuracy, nothing has 

 been admitted into the body of the work that 

 has not been the result of the personal ex- 

 perience of the author. 'No tree is described 

 as being in cultivation which the author has 

 not himself seen ; and in most cases, the reader 

 is referred to the tree, with its height and 

 dimensions, from which the description is 

 taken. The Appendix at the end of the work 

 contains principally those trees which, though 

 in cultivation, are too small to form a correct 

 estimate of their value in ornamental garden- 

 ing. 



The work is offered solely as an aid in 

 practical affairs, without any high pretension 

 to its being a contribution to scientific litera- 

 ture. Hence the arrangement is alphabetical 

 and the descriptions are brief. The botani- 

 cal characters are for the most part compiled 

 from various authors. In the Pinacece, 

 London has been principally consulted. The 

 references to the natural orders are to those 



