BUTTERFLIES 77 



claws till it is strong enough, and then slip it over 

 their heads. 



Many other interesting points could be men- 

 tioned in connection with butterflies, but those I 

 have briefly touched upon will serve to indicate 

 what interesting questions arise from the study 

 of butterflies and other insects, and what good 

 examples they afford us of many of the problems 

 of Natural History. 



