IV ADVERTISEMENT. 



of the Linnoean Genera may be very use- 

 ful, since they will satisfy those who are 

 willing to become easily acquainted with 

 the subject; at the same time that the 

 zealous Entomologist, who wishes to try 

 how far he is able to improve a system, 

 cannot have a better foundation to pro- 

 ceed upon. 



