fz^j ^oY 
ADDRESS. 
A CYCLE of nineteen years has been completed, since the ap- 
pearance of the first number of these Illustrations ; within which 
period no less than 72 distinct works on Entomology, forming 
112 volumes, have emanated from the British press (exclusive of 
reprints, and of works on Bees). Of these more than half (41) are 
arranged in conformity with the views developed in this work, or 
my Systematic Catalogue ; — the remainder being chiefly devoted to 
the description of foreign Insects, to particular groups of Insects, 
or being elementary treatises on the subject. 
From these facts, and from what is shewn in the note below,* 
and hereafter stated, it would appear that my labours have contri- 
buted materially towards the advancement of Entomology in this 
country. 
That the exertions of Dr. Leach, and of Messrs. Kirby and 
Spence, however, greatly conduced towards instilling a taste for 
this department of Zoology, and its consequent progression, need 
scarcely be insisted upon in this place ; but the foundations of a 
building are of little avail, unless the building itself be erected : — 
it has been my endeavour to attempt the stupendous enterprize, so 
far as relates to the indigenous species of insects ; but, alas ! 
vainly. Nevertheless, I have succeeded in partially rearing the 
temple, and my success may be rendered manifest by the following 
brief recapitulation of my labours. 
Previously to 1818, the total number of species of insects 
described, or recorded, as British, was 3673 ; in that year about 
500 additional species were inti'oduced in Samouelle's Compendium, 
from my cabinets ; and subsequently about 100 more, in the first two 
volumes of Curtis's Genera, chiefly from my manuscripts ; making 
* About 300 copies of the Illustrations, 412 of my Systematic Catalogue, and 1220 of 
Diy Nomenclature, have been disposed oi" within the period in question. 
