3 2. Of Vegetation. 
But as plants have not a dilating and con- 
trafting Thorax, their infpirations and expi- 
rations will not be fo frequent as tho^e of 
Animals, but depend wholly on the alter- 
nate changes from hot to cold, for infpira- 
tion, and ^jjee ‘verfa for expiration ; and *tis 
not improbable, that plants of more rich 
and racy jjiiices may imbibe and affimilate 
more of this aereal food into their conftitu- 
^tions, than others, which have more watry 
vapid juices. We may* look upon the Vine 
as a good inftance of this, which in Exper. 3. , 
perfpired lefs than the Apple-tree. For as it 
delights not in drawing much watry nourifli- 
ment from the earth by its roots, fo it 
muft therefore neceflarily be brought to a 
more ftrongly imbibing ftate at night, than 
other trees, which abound more with watry 
nourifhmentj and it will therefore confe- 
quently imbibe more from the air. And likely 
this may be the reafon, why plants in ho^ 
countries abound more with fine aromatick 
principles, than the more northern plants, 
for they do undoubtedly imbibe more dew. 
And if this conjedure be right, then it 
gives us a farther reafon, why trees which 
abound with moifture, cither from too (haded 
a po- 
