ADVERTISEMENT. 
During the publication of the “ Animal Kingdom,” 
M. Guerin has produced in France a series of en- 
gravings, under the title “ Iconographie du Regne 
Animal,” illustrating nearly all the genera and sub- 
genera of that work, including not only reduced 
copies of the most esteemed existing engravings of 
animals, but also a vast number of original figures of 
hitherto unpublished species, especially of insects and 
other invertebrata. M. Guerin has, moreover, added 
to these a most valuable series of anatomical figures, 
displaying, to the eye, much more intelligibly than 
words can do to the understanding, the peculiari- 
ties of structure on which Cuvier has founded his 
arrangement of the animal kingdom. 
This work of M. Guerin has received the highest 
commendation, not merely from Cuvier himself, but 
also from most of the first zoologists in France, and 
is certainly of the greatest utility in the study of the 
work it is intended to illustrate, superseding, in a 
A 
