xxiv 



INDEX. 



Woodpeckers, why are their sup 

 posed ravages beneficial ... 



Woodpeckers, whj r are the ex 

 tremities of their tails hard and 

 elastic 



Wren, why does it make several 

 nests 



Wren, why associated with the 

 redbroHst 703 



j Wren, why are the toes of golden- 

 797 crested, fastened by a skin ... 710 



Wry-neck, why so called 828 



Youth, why is the human body 

 789 soft and round 39 



Zebra, why found in hilly and 

 698 mountainous places 505 



Zebra, beautiful form and colours 5M 



