12 Staten Island Association of Arts and Sciences 



Davis, a constantly increasing historical value as time goes on and 

 the trees either die a natural death or are otherwise exterminated. 

 Finally it may be pertinent to refer to the fact that in each in- 

 stance it is the white oak that has shown the greater vitality, 

 although there is no evidence that this has any biological signifi- 

 cance in connection with the union between this species and either 

 of the other two. 



