4:50 HISTORY OF ENTOMOLOGY. 
Entomology what the latter had done for Botany. As 
the learned and illustrious Swede had assumed the Fruc- 
tification for the basis of his system in that science, so the 
emulous and highly-gifted Dane, observing how happily 
those organs were employed as characters in extricating 
the genera of Vertebrate animals, assumed the znstru- 
ments of manducation, far more numerous and various 
in insects, for the basis of a new system of Entomo- 
logy; which, from the mazille being principally em- 
ployed to characterize the Classes or rather Orders, may 
be called the Maxillary System. De Geer, indeed, as 
we have seen above, had, in the majority of his Classes, to 
the organs of flight added the parts of the mouth: but 
Fabricius pursued the idea much further, and made the 
Trophi*, or Instrumenta Cibaria as he called them, the 
sole corner-stone of his whole superstructure. Though 
nothing seems to have been further from his intention 
than to follow Nature, since he complains that Linné by 
following her too closely had lost the Ariadnean thread of 
system >, yet it is singular that, by building upon this seem- 
ingly narrow foundation, he has furnished a clue, by the 
due use of which, instead of deserting her, his successors 
have been enabled with more certainty to extricate her 
groups: since the parts in question being intimately con- 
nected with the functions and economy of these animals, 
where they differ materially, indicate a corresponding 
difference in their character and station. 
The jirst outline of his System, I believe, appeared in 
his Systema Entomologia published in 1775; and the Jasé, 
in his Supplement to his Entomologia Systematica in 1798. 
In this the series and characters of his Classes (for so, 
* Vor. II. p. 417. 
* Philos. Entomolog. vi. §. 2. Syst. Ent. Prolegom. 
