Of Vi. egetaiiori. 3 j 3 
verfa, if when fuch a Girove of tall trees is 
cut down, there be left here and there a 
lingle tree, that tree will then fhoot out la- 
teral branches ; the leaves of which branches 
now perfpiring freely, will attraft plenty of 
fap, on which account the top being depri- 
ved of its nourifhment, it ufually dies. 
And as trees in a Grove or Wood grow 
only in length, becaufe all the nourifhment 
is by the leaves drawn to the top, moft of 
the fmall lateral lhadcd branches in the mean 
time perifhing for want of perfpiration and 
nutrition ; fo the cafe is the very fame in the 
branches of a tree, which ufually making an 
angle of about 45 degrees with the flem of 
the tree, do thereby beautifully fill up at equal 
and proper diftances the fpace between the 
lower branches, and the top of the tree, form- 
ing thereby as it were a parobolical Grove or 
Thickets which lhadingthe arms, the fmall 
lateral (hoots of thofe arms ufually perifh for 
want of due perfpiration ; and therefore the 
arms continue naked like the bodies of Trees 
in a grove ; all the nourifhment 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. 
A a And 
