NEST MAKING: ITS ORIGIN AND USE. 



321 



FIG. 301. 



FIG. 302. 



FIG. 303. 



FIG. 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. 303. Purseweb spider's tube ; soil removed 

 to show underground burrow. 



