viii P^'eface 



has been printed. I would offer my best thanks 

 to the very numerous correspondents, and espe- 

 cially to the large body of clergy, who have so 

 kindly given me data and measurements of not- 

 able trees. To Mr, W. Robinson I am under 

 Sfreat obligfations for much valuable assistance and 

 advice, and to Mr. F. W. Burbidge for most of 

 the information about Irish trees. 



