Of Vegetation. 3 y y 
iiient to the difFcrciit circumftances of her 
produdions. For in this embrio ftate of the 
buds a fuitable provifion is made to bring 
nourifhment to them in a quantity fufficient 
for their then fmall demands : But when 
they are in fome degree incrcafed and formed, 
a much greater quantity of nourifhment, is 
neceflary, in proportion to their greater in- 
creafe : Nature, that flie may then no longer 
fupply v/ith a fcanty hand, immediately 
changes her method, in order to convey 
nourifhment with a more liberal hand to her 
produdions j which fupply daily increafcs by 
the greater expanfion of the leaves, and con- 
fequently the more plentiful attradion and 
fupply of fap, as the greater growth and de- 
mand for it increafcs. 
We find a much more elaborate and 
beautiful apparatus, for the like purpofe, ia 
the curious expanfions of bloffoms and flow- 
ers, which feem to be appointed by na« 
ture not only to proted, but alfo to draw and 
convey nourifhment to the embrio fruit and 
feeds. But as foon as the Calix is formed into 
a fmall fruit, now impregnated with its 
minute feminal tree, furnifhed with its 
Sccondine, Corion and Amnion^ (which 
A a 2; new 
