FLASHLIGHTS ON NATURE 



No. 5 shows us further details of some other 

 interesting features in Rosalind's anatomy. The 

 upper figure represents three distinct varieties of 



the viscid threads, 

 each with its own 

 peculiar type of 

 beads, adapted 

 for catching lar- 

 ger or smaller 

 insects. Every 

 kind has its own 

 beads spread for 

 it. The flies get 

 entangled in these, 

 according to their 

 size ; and then, 

 tearing the web to 

 free themselves, 

 find the coils only 

 double round their 

 legs and bodies. 



But the spider 

 does not content 

 herself with merely 

 catching insects ; 

 she poisons them 

 as well. We had 

 not watched Rosa- 

 lind long in her chosen lair before we dis- 

 covered that she did not live in her geometrical 

 web ; that was merely her hunting- net ; her 

 private residence consisted of a snug little cell 



NO. 4. BACK VIEW OF ROSALIND'S 

 SPINNERETS. 



