PREFACH TO SECOND EDITION. 
In preparing the present edition of the “Insect World,” I have 
adhered to the text of the first, except where alterations were 
imperatively needed. 
With regard to the Strepsiptera, placed originally before the 
Coleoptera, I have followed the generally accepted plan of incor- 
porating these remarkable insects as a distinct family, with the 
latter Order. 
Epwarp W. JANSON. 
March, 1869. 
