8 4 Vegetable Statkks . 
by the warmth of the earth, are by the 
cooler air foon condenfed into a vifible 
form. And I have obferved the fame dif- 
ference between the coolnefs of the air, 
and the warmth of water in a pond, by 
putting my Thermometer , which hung all 
night in the open air in fummer time, in- 
to the water, juft before the rifing of the 
fun, when the like reek or fog was rifing 
on the furface of the water. 
CHAP. II. 
Experiments, whereby to find out the force 
with which Trees imbibe moi flare. 
H Aving in the firft chapter feen many 
proofs of the great quantities of li- 
quor imbibed and perfpired by vegetables, 
I propofe in this, to enquire with what force 
they do imbibe moifture. 
Tho* vegetables (which are inanimate) 
have not an engine, which, by its alternate 
dilatations and contraftions, does in animals 
forcibly drive the blood through the arte- 
ries and veins 5 yet has nature wonderfully 
contrived 
