PREFACE. IX 



the characters of the Orders and Genera, and generally for what may be 

 considered the botanical department of this Work, from its commencement to 

 the end of the genus Salix. He is, also,indebted to W. Withers, Esq., of Holt, 

 Norfolk, for the loan of his unpublished work on the Robinza Pseud-acacia ; 

 to W. Borrer, Esq., F.L.S., for the arrangement into groups of the numerous 

 species of the difficult genus alix, and for looking over the proof sheets of 

 the article on that genus ; to Professor Alphonse De Candolle, for looking 

 over the proof sheets of the article on Salisburwr, as well as for examining the 

 proofs of the history of trees in France and Switzerland ; to M. Vilmorin, for 

 looking over the proof sheets of the history of trees and shrubs in France; to 

 the late M. Fischer, of the Botanic Garden, Gottingen, and to M. Otto, of 

 Berlin, for looking over the proof sheets of the history of trees in Germany ; 

 to Professor Don, for arranging and looking over the whole of the generic 

 characters, and some of the proof sheets, of the Coniferae ; and to Mr. Gorrie, 

 for examining the proof sheets of the article on the Larch. 



To His Grace the Duke of Bedford the author is indebted for much valuable 

 information on the subject of trees, and more especially respecting the Oak, 

 the Scotch Pine, and the Cedar of Lebanon, communicated either directly 

 by His Grace, or through his forester at Woburn Abbey, Mr. Ireland ; as well 

 as for permission (of which he has availed himself) to make whatever use 

 he chose of that magnificent work the Salictum Woburnense. To the Duke 

 of Richmond, the Earl of Aberdeen, Macpherson Grant, Esq., and Mr. Grigor, 

 of Forres, he is indebted for important communications respecting the Scotch 

 Pine in Scotland ; to the Duke of Portland for various researches respecting 

 the Oak in Nottinghamshire; and to the Earl of Wicklow, Earl Roden, Lord 

 Viscount Ferrard, Sir Robert Bateson, Mr. Mackay, and Mr. Niven, for 

 information respecting the trees and shrubs of Ireland. 



The author, in conclusion, has only to request that the readers of this Work 

 will send to him whatever corrections, additions, or suggestions may occur to 

 them on its perusal, or at any future period. It is his intention to publish what- 

 ever additional matter he may receive from correspondents, or procure him- 

 self, in an Annual Report in the Gardener's Magazine; and to include in this 

 report notices of all the trees and shrubs which may, during the year, have been 

 introduced from foreign countries, or originated in this country from intentional 

 hybridisation or accident. This report will also include such improvements as 

 may from time to time be made in arboricultural nomenclature, such as the 

 re-arrangement of the species of a genus, &c. ; and, in short, every thing that 

 may be found requisite to keep up the information contained in the Arbore- 

 tum et Fruticetum Britannicum, with the actual progress of knowledge on the 

 subject. The essence of these annual reports will be collected from time to 

 time, and published in pamphlets, as supplements to the Arboretum ; so that 

 the possessor of this first edition may have it in his power, at any future, 

 time, to bring the Work down to the latest date, without being under the 

 necessity of purchasing a new edition. 



J. C. L. 



Bayswatcr, May 20. 1838. 



