324 



INDEX AND GLOSSARY. 



U. 



Ulva (a genus of sea-weed), 89. 



Ulva crispa, 92. 



Ulva latissima, 90. 



Vnivalre Mollusca (Gasteropoda), 



64, 137,&c. 

 Uria troile (Guillemot), 290. 



V. 



Vegetation of sandy downs, 278 ; 

 salt marshes, 274 ; rocky soil, 

 281 ; grassy pastures, 282. 



Velella (a genus of Jelly-fishes), 

 224. 



Velvet Crab, 197. 



Venus (a genus of shells), 69, 71. 



Viola tricolor (Wild Pansy), 278. 



Virgtdaria miraMlis, 186, 187. 



w. 



Walling of a net, 256. 



I Water essential to Life, 21 51. 

 Water-fleas (Daphniat), 189. 

 Waves (height of), 34. 

 Whelk, 64. 



White, Gilbert, his history of Sel- 

 borne, 7. 



X. 



Xantlddia, fossil, 210. 



Zoology, pleasures of, 14. 



Zoophytes (a class of animals nearly 

 the lowest in the scale of organi- 

 zation, inhabiting the horny and 

 stony corals. Individually these 

 animals are called polypes, and 

 their coral a polypidom), 76, 

 1 1 6, &c. 



Zostera marina (Grass Wrack), 

 81. 



