Of Vegetation^ 3 j j 
bodies of Trees in a grove 5 all the nourifli- 
mcnc being drawn up to the tops of the 
feveral branches by the leaves which are 
there expofed to the warm fun and free 
drying air, whereby the branches of Trees 
expand much. 
And where the lateral branches are very- 
vigorous, fb as to make ftrong Ihoots, and 
attradl the nourifhment plentifully, there the 
tree ufually abates in its height : But where 
the tree prevails in height, as in groves, there 
commonly its lateral branches are fmalleft. 
So that we may look upon a tree as a com- 
plicated Engine which h^as many different 
powers as it has arms and branches, each 
drawing from their common fountain of 
life the root : And the whole of each yearly 
growth of the tree will be proportionable 
to the fum of their attracting powers, and the 
quantity of nourifnment the root a^Sords * 
But this attracting power and nouriiliment 
will be more or lefs, according to the differ- 
ent ages of the tree, and the more or lefs 
kindly feafons of the year. 
And the proportional growth of their 
lateral and top branches, in relation to each 
other, will much depend on the difference 
A a of 
