344 OJ p ^egetatzon. 
(Fig. 44.) leprefents the fhape and Fzc 
of a young Fig-leaf, when firft marked 
with red points, f inch diflance from each 
other. 
(Fig. 45.) reprefents the fame full grown 
leaf, and the numbers anfwer to the cone- 
fponding numbers in the young leaf : 
Whereby may be feen how the feyeral points 
of the growing leaf were feparated froni 
each other, and in what proportion, viz. 
from a quarter of an inch, to about three 
quarter’s of an inch diftance. 
In this Experiment we may obferve that 
the growth and expanfion of the leaves is 
owing to the dilatation of the veficles in 
every part, as the growth of a young flioot 
was fnewn to be owing to the fame caufe 
in the foregoing Experiment 8 ; and doubt* 
lefs the cafe is the fame in all fruits. 
If thefe Experiments on leaves were fur- 
ther purfued, there might probably be many 
curious obfervations made in relation to 
the fiaape of leaves : By obferving the dif- 
ference of the progreflive and lateral motions 
of thefe points in different leaves, that were 
of very ditfcrcnt lengths in proportion to 
their breadths. 
That 
