PEOCEEDINGS 



OF THE 



GEOLOGICAL SOCIETY OF LONDON. 



SESSION 1885-86. 



November 4, 1885. 

 Prof. T. G. Bonnet, D.Sc, LL.D., F.R.S., President, in the Chair. 



Dr. A. G. Nathorst, of Stockholm, was elected a Poreign Corre- 

 spondent of the Society. 



The List of Donations to the Library was read. 



The following communications were read : — 



1. "On the Premaxillaries and Scalpriform Teeth of a large 

 Extinct Wombat (Phascolomys curvirostris, Ow.)." By Sir Richard 

 Owen, K.C.B., P.B.S., P.G.S. 



2. " On the Structure and Classificatory Position of some Madre- 

 poraria from the Secondary Strata of England and South Wales." 

 By Prof. P. Martin Duncan, M.B., F.E.S., P.G.S. 



3. " On the Astroccenicn of the Sutton Stone of the Infra-Lias of 

 South Wales." By Prof. P. Martin Duncan, M.B.. F.R.S., P.G.S. 



The following specimens were exhibited : — 



The type specimen of Clausastrcea Pratti, M.-Edw. & H., from the 

 Society's collection ; and a specimen of Astrocoenia gihhosa from the 

 Sutton Stone, exhibited by Prof. P. Martin Duncan in illustration 

 of his papers. 



A photograph of Dicynodon from the Triassic Sandstone of Elgin, 

 exhibited by Prof. J. W. Judd. 



VOL. XLII. 



