INDEX 



459 



White ants (illus., 187), 184. 



White pelicans (illus.), 220. 



Whooping-orane (illus.), 220. 



Wild duck (illus.), 302. 



Wings showing homology and anal- 

 ogy (illus.), 14. 



Wood-boring beetle larva (fflua.), 

 311. 



Woodchuck, 241. 



Woodcock, 223. 



Woodpeckers, 238. 



Worms, 59. 



Xiphias gladlu* (fflus ), 27& 



Yellow-jacket (illus.), 827. 

 Yellow-perch (ilius.), 165. 

 Young, number of, 277; o*ie oi 

 397. 



Zenaidura macroura, 225. 

 Zirphoea crispata (illus.), 93. 

 Zoo geography, 43& 



(27 



THE 



