Vol. 50.J PROCEEDINGS OE THE GEOLOGICAL SOCIETY. 1 49 



tributions : — W. J. It. Cowell, Esq. ; T. A. Dash, Esq. ; F. J. 

 A. Matthews, Esq. ; C. Parker, Esq. ; E. M. Richards, Esq. ; 

 Rev. J. C. Roberts ; 8. Rogers, Esq. ; J. Ruscoe, Esq. ; U. P. 

 Swinburne, Esq. ; Dr. J. E. Taylor ; T. C. Townsend, Esq. ; C. H. 

 Teinks, Esq. ; and S. J. Truscott, Esq. 



The List of Donations to the Library was read. 

 The following communications were read: — 



1. ' On Deep Borings at Culford and Winkfield, with Notes on 

 those at Ware and Cheshunt.' By W. Whitaker, Esq., B.A., E.R.S., 

 F.G.S., and A. J. Jukes-Browne, Esq., B.A., F.G.S. 



2. ' The Bargate Beds of Surrey, and their Microscopic Contents.' 

 By Frederick Chapman, Esq., F.R.M.S. (Communicated by Prof. 

 T! Rupert Jones, F.R.S., F.G.S.) 



3. ' On Deposits from Snowdrift, with Especial Reference to the 

 Origin of the Loess and the Preservation of Mammoth-remains.'' 

 By Charles Davison, Esq., M.A., F.Gr.S. 



4. ' Additions to the Fauna of the OJenellus-zone of the North- 

 west Highlands.' By B. N. Peach, Esq., F.R.S., F.G.S. (Com- 

 municated by permission of the Director- General of the Geological 

 Survey.) 



5. ' Questions relating to the Formation of Coal-Seams, including 

 a New Theory of them : suggested by Field and other Observations 

 made during the past decade on both sides of the Atlantic' By 

 W. S. Gresley, Esq., F.G.S. 



6. ' Observations regarding the Occurrence of Anthracite generally, 

 with a new Theory as to its Origin.'" By W. S. Gresley, Esq., 

 F.G.S. 



7. ' The Igneous Rocks of the Neighbourhood of Builth.' By 

 Henry Woods, Esq., M.A., F.G.S. 



8. ' On the Relations of some of the Older Fragmental Rocks in 

 North-west Caernarvonshire.' By Prof. T. G. Bonney, D.Sc, LL.D., 

 F.R.S., F.G.S., and Miss Catherine A. Raisin, B.Sc. 



The following specimens were exhibited : — 



Specimens from the Deep Borings at Culford, Ware, and Turn- 

 ford, exhibited by W. Whitaker, Esq., B.A.., F.R.S., F.G.S., and 

 A. J. Jukes-Browne, Esq., B.A., F.G.S., in illustration of their paper. 



Rock- specimens and microscope-sections from the Bargate Beds 

 of Surrey, exhibited by F. Chapman, Esq., in illustration of his 

 paper. 



vol. l. m 



