INDEX. 



661 



Voluntary motion, i. 37; ii. 



534. 

 Volute, i. 248 ; ii. 126,482. 

 Volvox, i. 186, 188; ii. 591. 

 Voracity of hydra, ii. 77. 

 Vorticella, i. 62, 182; ii. 97, 



584. 

 Vulture, ii. 180, 406. 



Wading birds, i. 585, 592. 

 Walking, i. 492, 542. 

 Waller, ii. 134. 

 Walrus, i. 487; ii. 141. 

 Warfare, animal, i. 46 ; ii. 67. 

 Warm-blooded circulation, ii. 



278. 

 Water not the food of plants, 



ii. 16. 

 Water-beetle (see Dytiscus). 

 Water-boatman, i. 29, 337. 

 Wax, vegetable, ii. 48. 

 Web-footed birds, i. 592. 

 Weber, ii. 430, 480. 

 Whale, i. 55; ii. 178, 443, 



504, 559. 

 Whalebone, ii. 136. 

 Wheel animalcule, i. 189. 

 Wheel spokes, spectre of, ii. 



524. 



Whelk (see Buccinum). 

 Whiskers, ii. 392. 

 Whorls of plants, i. 90. 

 Whorls of shells, i. 243. 

 Willow, i. 79. 

 Wings, i. 344, 567. 

 Winged insects, i. 299. 

 Withers, i. 518. 

 Wolf-fish, ii. 128. 

 Wollaston, i. 92; ii. 55,491, 



571. 

 Wombat, i. 527. 

 Woodhouse, ii. 30. 

 Woodpecker, ii. 132. 

 Woody fibres, i. 71, 75. 

 Worms (see Annelida and En- 



tozoa). 



Yarrell, ii. 131. 

 Young, ii. 474, 475. 



Zebra, i. 516. 

 Zemni, ii. 506. 

 Zoanthus, i. 162, 182. 

 Zoocarpia, i. 156. 

 Zoophytes, i. 146; ii. 477,537. 

 Zostira, ii. 202. 

 Zygsena, ii. 384. 

 Zygodactyli, i. 586. 



FINIS. 



