Teacher's Leaflet. 



7^7 



An Orb Web. 



Photo by J. H. Comstock. 



(12). If an insect becomes entangled in the web, how does the spider 

 discover the fact and act? 



(13). If the spider sits at the middle of the web, it has a different 

 method for discovering when an insect strikes the web than does the 

 spider that hides in a den at one side. Describe the methods of each. 



(14). How does it make fast an insect? Does it bite the insect before 

 it envelops it in silk? Where does it carry the insect to feed upon it? 



(15). How does the spider manage to run about its web without 

 becoming entangled in the sticky thread? 



(16). How often does the orb weaver make a new web? 



