y8 The Structure and Habits of Spiders. 



The net is now set for use, and she stands 

 holding it till something touches it ; then she 

 lets go with her hind-legs, and the net springs 

 forward, bringing more threads into contact 



Fig. 39- 



with the insect, and sliding the spider along the 

 line toward A. If she thinks it worth while, 

 she draws up another loop, and snaps the web 

 again. When she is satisfied that the insect is 



