200 fJRST LESSONS IN ZOOLOGY 



upper and lower openings. Find a tube with the spider 

 in it. ■ Touch the tube hghtly with a pencil point, trying 



Fig. i6o. — Spiilcr ;in(l its wtb in a rose-bush. (Photogr.ipli from life In- 

 Clierrr Kecvrton; from "Wild Life at Iloiiie," by permission of 

 Cassell & Co.) 



to induce the spider to come out upon the web. Observe 

 its manner of escape. 



A great advance in point of S3'mmetry and elabora- 

 tion of design is shown by the round webs or orb-webs 

 (fig. i6i). These are the most interesting as well as the 

 most beautiful of spider's snares. They maj' be found 

 suspended between the branches of shrubby plants, or 



