70 PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [Dec. 4, 



The phosphatic masses were frequently drilled and filled with glau- 

 conite and other matter. He doubted the ventriculite origin of 

 many of the nodules, and pointed out that the so-called Ventriculites 

 were in reality Ocellarice. 



Mr. H. Woodward mentioned that a similar structure to that de- 

 scribed in the Ventriculites had been discovered by Mr. Kent in a 

 modern siliceous sponge, and observed on tbe similarity in some re- 

 spects between ventriculite structure and that of Ewplectella asper- 

 gillum. He thought that, whatever might be the origin of some of 

 the chalk-flints and phosphatic nodules, it was unsafe to refer the 

 whole of them to the growth of sponges. 



Mr. Fisher, in reply, did not agree with some of the speakers in 

 considering that various organic remains were often found imbedded 

 in coprolitic matter, though many were filled or partially covered 

 with it. There was, he thought, a difference between the coprolites 

 of the Crag and those of the Greensand ; the surface of the great 

 bulk of the latter had to his eye an unmistakably organic appearance. 

 In some cases he thought they might have been allied to Alcyonaria. 

 He did not agree with Mr. Seeley as to many of them being in a 

 rolled condition. 



Mr. Sollas stated that some of the coprolites contained siliceous 

 XantJddia and Polycystina uninjured, which afforded an argument 

 against regarding the Ventriculites as having originally had a sili- 

 ceous skeleton which had subsequently beeu replaced by phosphate 

 of lime. He had also found well-preserved siliceous spicules in the 

 coprolites. The forms, though numerous, were well defined and 

 susceptible of classification, which he had attempted to undertake. 

 He could not acknowledge any mistake in reference to Porospongia. 



December 18, 1872. 



Benjamin Winstone, Esq., 53 Russell Square, "W.C. ; William 

 Aubone Potter, Esq., of Cramlington House, Northumberland; 

 Thomas Sopwith, Jun., Esq., the Holmes, Nightingale Lane, Clap- 

 ham Common ; Philip Charles Hardwick, Esq., 21 Cavendish Square, 

 W. ; Frederick George Hilton Price, Esq., 25 Clarendon Gardens, 

 Maida Vale, N.W. ; Charles Lapworth, Esq., Abbotsford Road, Gala- 

 shiels, N.B. ; Henry Brogden, Esq., of the Llynn, Tondu, and Og- 

 more Coal and Iron Works, Glamorganshire ; John Wonnacott, Esq., 

 15 Haddington Road, Stoke Devonport ; and Alfred Cecil Crutwell, 

 Esq., Cardiff, were elected Fellows of the Society. 



The following communications were read : — 



1. Further Notes on the Punfield Section. 

 By C. J. A. Meyer, Esq., F.G.S. 



In a paper read before the Society in March 1872*, I stated my con- 

 viction that the so-called « Punfield Formation " f of the Isle of 

 * Quart. Journ. Geol. Soc. vol. xxviii. p. 252. f Judd, ibid. vol. xxvii. p. 207. 



