ACE 



This popular French book on Insects has been placed in 

 my hands in order that the scientific portions of it should 

 be examined and, if necessary, corrected. This task has 

 been a light one, for the book had already passed through 

 the able editorship of Mr. Jansen. But I have added a 

 short notice of the Thysanoptera, which did not appear in 

 M. Figuier's original work, and also the necessary informa- 

 tion respecting the evolution of Stylops. 



VL. P. MARTIN DUNCAN. 



