182 ON SYSTEMATIC ZOOLOGY. 
(233.) Notwithstanding the length of the above 
table, we have found it impracticable to insert the 
whole of the divisions and sub-genera which crowd the 
pages of the Régne Animal. Many of these are desig- 
nated only by their French names; a practice highly 
detrimental to that clearness and perspicuity of nomen- 
clature which should be preserved in works of science : 
and this, added to the want of synoptical tables through- 
out the work, materially diminishes its utility for facile 
reference. We have, however, enumerated the leading 
groups ; and these will sufficiently explain to the stu- 
dent the nature of the whole, and guide him in his 
search after the lesser divisions. 
(234.) We have now given an exposition of the two 
most celebrated systems of modern times; namely, 
those of Linneus and of Cuvier. They are the only two 
which have embraced the whole of the animal kingdom, 
from the higher groups down to the lowest. Several 
others, indeed, have been given to the world; but they 
are rather compiled than original schemes ; and, from 
not carrying with them internal evidence of adequate 
knowledge, have received neither support from the 
scientific, nor popularity from the public. These may, 
therefore, be passed over in silence. But there are 
others, relating only to particular classes of animals, 
which are not only highly important as emanating from 
men justly celebrated in the ranks of science, but equally 
so as having furnished materials of such value, that 
without them even the Systema Nature, or the Régne 
Animal could never have been given to the world. 
Like those celebrated works, the classifications we are 
now to notice come also under the head of artificial 
systems, because they merely tend to illustrate the pe- 
culiarities of the individual when viewed by itself, 
without any reference to its analogies or representations 
in the general scheme of nature. The partial system 
of Iiliger is confined to quadrupeds and birds ; while 
those of Vieillot and Temminck are restricted to the 
latter only. Those most celebrated in entomology have 
emanated from De Geer, Fabricius, Latreille, Leach, 
