105 
Professor Liveing asked whether Mr Seeley meant that the 
Wealden was denuded at Shotover and its neighbourhood to 
form these beds, and enquired where he supposed this Wealden 
land to be. 
Mr Seeley said that he had not meant to imply that the 
Wealden land was denuded to form these deposits, but that the 
animals therein were living in the surrounding seas or were 
brought down from it by streams into them; as for the position 
of the land it was a difficult question, and he was not yet pre- 
pared to give a positive opinion, but he believed it to be some- 
where to the S.E. of Britain. 
Mr Walker (Sidney) asked Mr Seeley whether the presence 
of Gryphea dilatata in these beds was not an objection to his 
theory, and expressed a difference of opinion as to the mode of 
formation of the phosphatic nodules. 
Mr Seeley replied that he thought the presence Bok a supposed 
species of oyster a matter of little moment, as the specific dis- 
tinctions were of such small value. 
