392 



FOOT-NOTES TO EVOLUTION. 



Working hypothesis, 255. 

 World as it is, 264. 



that is, 274. 

 Worship, 373. 



Wiirtemberger on the law of develop- 

 ment, 233. 



Yolk of egg, 39. 



Youatt on selective breeding, 19. 



Youmans on life in New Zealand, 

 202. 



Zahme Xenien, 118. 

 Zangwill on the "higher foolish- 

 ness," 290. 

 Zittel on ammonites, 246. 

 Zoological Record, 2. 

 Zygotes, 165. 



(3) 



THE END. 



