THE STEM 



117 



Plate 6. — A white oak, one of tlic moiiarchs of the dicotyl type. The owner of 

 the ground on which this noble tree stands left a clause in his will bequeathing it in 

 perpetuity a territory of 8 feet in every direction from its base. Refer to 89 and 

 decide whether such an amount of standing room ia sufficient to secure the preser- 

 vation of this beautiful object. 



