166 



SALICACEiE. 



the name of Willow-wrens ; at the same time may be seen 

 the various species of oiir own native titmice, engaged in 

 eager and prying search, and hanging from the tender 

 spray in every possible attitude. The vignette represents 

 the imago, pupa, and caterpillar of Smerinthus popwli. 



