224 CHAPTER 1 8, 
ranking, however, with the latter, fach 
had been called Stiffrutices, or fhrubby. 
Trees he divides into nine claffes, account- 
ing the laft anomalous ; Shrubs into fix i 
and Herbs into forty- feven. 
In the progrefs of his improvements after- 
wards, he reduced thefe claffes to thirty- 
three. His method, which is indeed ex- 
tremely elaborate, will beft be feen by a 
viev/ of the claffes. It will, however, be 
but juftice to refer the account to the laft 
edition, that it may appear in the greateft 
perfedion which he gave it. 
To this book Mr. Ray has fubjoined a 
clear, concife view, and a lynoptical table, 
of the fyftem of Cisalpine, and gives 
his reafons for not adopting it ; although 
he candidly confeffes his obligations to the 
author, whom he acknowledges to be the 
parent of lyftem. 
In 1683 and 1684, Mr. Ray and Dr. 
Tancred Robinson exchanged feveral let- 
ters, while the latter was on a foreign tour, 
relating to various undetermined fad:s in 
natural hiftory; among which, it had been 
difficult to fettle the exaCt fpecies of the 
Macrufe^ 
