314 



TRANSACTIONS AND PROCEEDINGS OF [Sess. lvC 



Table YII. 



Distvibution m the genus Qvercns. 



T have made a separate study of this genus, including the 

 species of tlie older group, as there seems to be a tendency in 

 it to early vigour, followed by a period of slower growth. 

 This is seen most unequivocally in the three Turkish Oaks 



Table VIII. 



(Table VIII.), in all of which the June percentage is much 

 exceeded by that of May on the one side and July on the 

 other, the general average of the three for from four to five 

 years being 28 for May, Ho or exactly lialf for June, and 



