281 



these fragile shells, perfectly preserved in beds of such coarse and 

 irregularly formed detritus, is of importance, as it proves that much of 

 the gravel to which the term ' diluvium ' has been applied, may have 

 been deposited by rivers. 



" It is thus evident that these fluviatile materials were drifted by a 

 river which flowed through dry land on the E.N.E. into the channel or 

 estuary so often mentioned, and it is therefore probable that they were 

 sometimes transported beyond the mouth of the ancient Avon, and de- 

 posited in shoals or banks beneath the waters of the channel. 



"The bones of extinct quadrupeds, already noticed as occurring on the 

 western or opposite side of the valley of the Severn, at Pouick and 

 Bromwick Hill near Worcester, and at Fleet Bank near Sandlin, were 

 probably at once washed into the ancient estuarv from the adjoining 

 hills by sudden and local floods, as they are not imbedded in debris 

 similar to that of the Avon. The physical features of the country marked 

 by the narrow ridge of the Malverns impending over the valley, account 

 indeed for the non-existence of former rivers, and consequently of flu- 

 viatile shells in this direction." 



1394. The body of the vertebra dentata of a large Aurochs (JJrus) or Ox (Bos). 



From a pleistocene deposit in Essex. 



Presented by John Gibson, Esq., F.G.S. 



1395. An anterior dorsal vertebra of a large Aurochs (Urus) or Ox {Bos) : the 

 vertical extent of this vertebra is twenty-two inches, the spinous process, 

 which is not quite entire, measuring nineteen inches of that extent. 



From a pleistocene deposit in Essex. 



Presented by John Gibson, Esq., F.G.S. 



1396. The right radius of apparently the same large Aurochs or Ox. 



From the same formation and locality. 



Presented by John Gibson, Esq., F.G.S. 



139J. The right metacarpal bone of apparently the same large Aurochs or Ox. 

 From the same stratum and locality. 



Presented by John Gibson, Esq., F.G.S. 

 2 o 



