SS ee = 
NEST MAKING: ITS ORIGIN AND USE. Ball 
Fic. 301. Fie. 303. 
Fic. 301. The silk lined burrow or nest of the American Trapdoor spider, Cteniza californica. The 
earth is cut away, giving a vertical exposure of the tube and its lining. Fig. 302. A colony 
of Purseweb spiders’ nests on a palmetto trunk, Fig. 308. Purseweb spider’s tube; soil removed 
to show underground burrow. 
