% $6 Of Vegetation* 
ufually (hotter than the middle joints 5 <vi % 0 
beeaufe they (hooting but in the more advan- 
ced hot dry fummer feafon, their fibres are 
foon hardened and dryed, and are withal 
checked in their growth by the cool au- 
tumnal nights : I had a vine fhoot of one 
year's growth which was 14 feet long, and 
had 39 joints, all pretty nearly of an equal 
length, except fome of the firft and laft. 
And for the fame reafon, Beans and many 
other plants, which Hand where they are 
much (haded, being thereby kept continually 
moift, do grow to unufual heights, and are 
drawn up as they call it by the over fhadow- 
ing Trees, their parts being kept long, foft 
and du&ile : But this very moift (haded ftate 
is ufually attended with fterility ; very long 
joints of vines are alfo obferved to be un- 
fruitful. 
This Experiment, which (hews the manner 
of the growth of (hoots, confirms Borel- 
li’s opinion , who in his Book motu 
Animalium , part fecond Chap. 13, fup- 
pofes the tender growing (hoot to be diftend- 
ed like foft wax by the expanfion of the 
moifture in the fpongy pith ; which dilating 
moifture, he with good reafon concludes 
is hinder jd from returning back, (while it 
4 expands) 
