I PRELIMINARY SKETCH OF THE 



must we omit again mentioning M. Latreille, on 

 the subject of entomology. 



If we omit to mention many names even of 

 distinction among our own countrymen, or fo- 

 reigners, it must not be imputed to neglect or 

 depreciation of their merits ; but the utter im- 

 possibility of making a complete enumeration 

 in an imperfect sketch like the present, or of 

 giving to such a sketch the character of a regu- 

 lar history of Zoology. 



The naked mollusca, those which inhabit 

 the interior of shells, the worms, and zoo- 

 phytes had experienced considerable neglect. 

 The interest and variety of their structure, did 

 not countervail with the great majority of na- 

 turalists, the difficulty of collecting and pre- 

 serving them. 



On the testacea, however, of both the Sici- 

 lies, a magnificent work was published by 

 Pali, in which their anatomy is described 

 and drawn with much correctness, and alto- 

 gether, a new light is thrown on their phy- 

 siology. But, by far, the most valuable 

 researches on this subject, have proceeded 

 from the Baron Cuvier, who has discovered 

 many new species, explained their external 

 structure, and rectified, through the medium 

 of anatomy, a number of erroneous opinions 



