xvi Be RB E ASCGi 
In the third and laft Part, the two remain- 
ing Parts of the Vegetable, wiz. the Root and 
Herb, are treated of: And as thefe chiefly 
furnifh the Dottrines that refpect the two laft 
Divifions of the Syftem, viz. Species and Va- 
rieties, fo thefe Doéttrines are alfo included 
jn this third Part, and make the Conclufion of 
the Work. 
The Two Tables fubjoined to the Work, 
have their Explanation prefixed ; and we fhall 
only fpeak here of their Utility. It is pre- 
fumed that no exact Table of the Linnagay 
Gegera with their Englj/b Names, and a Re- 
ference to their Clafles and Orders, as given in 
the firft Table, has yet appeared in Print, our 
Writers not having adopted all the Linnean 
Names, nor followed that Author exaétly in 
his Diftribution of Vegetables ; our firft Table, 
therefore, cannot but be of great Ufe to thofe 
who are defirous of becoming acquainted with 
the Method of Linzeus, and of framing the 
Lifts of their private Collections upon the Plan 
of his Syftem. 
The Utility of the fecond Table, which con- 
tains the Names of the Genera rejected by Lin- 
neUs, 
