74 AN INTRODUCTION 
The firft general Divifion of the whole Bo- 
dy of Vegetables is into twenty-four Claes ; 
thefe are again fubdivided into Orders, the 
Orders into Genera, the Genera into Species, 
and the Species into Varieties, where there 
are any worthy of Note. Of thefe Divi- 
fions, we fhall treat of the three firft only in 
this fecond Part. Thefe more immediately 
refpect the Theory of the Science than the 
other two,which,though fyftematic Divifions 
likewife, have, as our author obferves, a 
nearer Relation to the Praétice ; and it isin 
thefe alfo that the principal _ Improvements 
in the Management of the Science are more 
particularly included. _ 
As the Claffes and orders of the Syftem 
will be feparately treated of in the follow- 
ing Chapters, we fhall conclude this Intro- 
ductory one with a Table exhibiting their 
Titles at one View, in the Order in which 
they ftand in the Syftem that the Reader 
may have Recourfe thereto as he finds Oc- 
cafion. 
Table 
