
 
        
         
		Voltzia,  genus of  conifer®  in  new red  
 sandstone, i.  485. 
 Watchet,  nacre  of  ammonites  preserved  
 in lias at, i. 376. 
 Waters, not created on the third day of  
 Mosaic cosmogony, i. 26 ;  sources of  
 mineral and thermal in faults, i. 569. 
 Water, its rank in geological dynamics,  
 i. 36;  supplied  to  springs by stratified  
 rocks,  i.  70 ;  its agency in  preserving  
 organic remains, i.  127;  circulation  
 of  in metallic  veins, i. 546;  
 perpetual  circulation  and  functions  
 of, i. 557,  558.  ' 
 Watt,  his  experiments  on  crystallization  
 of bodies cooled slowly,  i. 41. 
 Webster, Mr., section prepared by, ii. 2. 
 Weinböhla,  sienite,  intersecting  and  
 overlying chalk at, ii. 5. 
 Weis, Professor, his account of bones of  
 megatherium, i.  160;  his belief that  
 the megatherium had armour, i.  161. 
 Wells, causes of rise of water in, i.  561. 
 Werner, his theory of  the formation of  
 stratified rocks, i. 44; of veins, i. 551. 
 Wheatstone, Prof.,on crystals produced  
 by electro-chemical  action, i.  552. 
 Whewell, Mr., his view of  the nebular  
 hypothesis, i. 40. 
 Whitby,  ammonites from, i. 339. 
 Wieliezka, salt  in tertiary formation,  i.  
 72. 
 Winds,  effect  in  causing  undulations  
 during the formation of stone in Portland, 
  i. 495;  effect in forming strata  
 in Bermudas and in Cornwall, i.  197. 
 Witham, Mr., his publications on fossil  
 conifer®, i.  484, 485, 488. 
 Worm holes,  fossil,  i. 260. 
 Yarrell,  Mr.,  on  the  vision  of  birds,  
 i.  173. 
 Zamia pungens,  mode of inflorescence.  
 i.  494. 
 Zamia spiralis, buds on trunk of, i. 500. 
 Zamia horrida, section of trunk of, i. 497. 
 Zeiten, M.,his description of fossil pens  
 and  ink bags in Wirtemberg, i.  308. 
 Zoology,  study of, indispensable to geology, 
  i.  111. 
 C. Whittingham, Tooks Court, Chancery Lane.