"The Number c/ Plates in this Volume is Twenty. 
The fecond, containing two different fubje&s, is marked Tab. II. at 
the Top, and Tab. III. below. The drawing of the eleventh 
Plate, having been fent in too late to be numbered in the regular 
feries, is marked Tab. X. 
The letter-prefs tables fhould be bound in upon guards by the middle, 
to avoid any folding out ; and in thofe which mufl be looked at 
fide-ways, the page fhould lie towards the right-hand. 
V 
ERRATA, 
