66 Vegetable Staticks. 
thence paffing into the leaves, it is there 
mod vigoroufly afted upon, in thofe thin 
plates, and put into an undulating motion, 
by the Sun’s warmth, whereby it is mod 
plentifully thrown off, and perlpired thro’ 
their furface ; whence, as foon as it is dif- 
intangled, it mounts with great rapidity in 
the free air. 
But when, towards the latter end ot Oc- 
tober, the vigour of the Sun’s influence is 
fo much abated, that the firft Thermometer 
was fallen to 3 degrees above the freezing 
point, the fecond to 10 degrees, the fifth 
to 14 degrees, and the fixth Thermometer to 
1 6 degrees ; then the brisk undulations of 
the moifture of the earth, and alfo of the 
afeending fap, much abating, the leaves 
faded and fell off. 
The greatefl: degree of cold, in the fol- 
lowing winter, was in the firft 12 days of 
November ; during which time, the fpirit in 
the firft Thermometer was fallen 4 degrees 
below the freezing point, the deepeft Ther- 
mometer 10 degrees, the ice on ponds was 
an inch thick. The Sun’s greatefl: warmth, at 
the winter folftice, in a very ferene, calm, 
frofty-day, was, againft a South afpeft of a 
wall, 19 degrees, and in a free open air, but 
a 1 1 dc- 
