Vol. 59.] PKOCEEDINGS OF THE GEOLOGICAL SOCIETY. Clil 



The following commanicatkms were read: — 



1. 'An Experiment in Mountain-Building.' By the Eight Hon. 

 the Lord Avebury, P.C., D.C.L., LL.D., F.E.S., F.G.S. 



2. 'The Toarcian of Bredon Hill (Worcestershire), and a 

 Comparison with Deposits elsewhere.' By S. S. Buckman, Esq., 

 F.G.S. 



3. ' Two Toarcian Ammonites.' By S. S. Buckman, Esq., F.G.S. 



The following specimens and map were exhibited : — 



A Series of Casts, exhibited by the Eight Hon. the Lord Avebury, 

 P.C., D.C.L., LL.D.^ F.E.S., F.G.S., in illustration of his paper. 



A copy of the new lithographed issue of Sheet 156 (u. s.) of the 

 Geological Survey 1-inch Map of Leicester (Drift) by C. Fox- 

 Strangways, presented by the Director of H.M. Geological Survey. 



June 10th, 1903. 



J. J. Harris Teall, Esq., M.A., F.E.S., Vice-President, 

 in the Chair. 



The Barnes of certain Fellows of the Society were read out for 

 the first time, in conformity with the Bye-Laws, Sect. VI. Art. 5, 

 in consequence of the non-payment of the Arrears of their Contri- 

 butions. 



The List of Donations to the Library was read. 



The following communications were read : — 



1. ' On Primary and Secondary Devitrification in Glassy Igneous 

 Rocks.' By Prof. T. G. Bonney, D.Sc, LL.D., F.E.S., F.G.S., and 

 John Parkinson, Esq., F.G.S. 



2. ' Geology of the Ashbourne & Buxton Branch of the London 

 & North- Western Eailway : — Crake Low to Parsley Hay.' By 

 Henry Howe Arnold-Bemrose, Esq., M.A., F.G.S. 



The following specimens, etc. were exhibited : — 



Microscopic Eock-Sections of Glassy Igneous Bocks, exhibited by 

 Prof. T. G. Bonney, D.Sc, LL.D., F.E.S., F.G.S., and John Parkinson, 

 Esq., F.G.S., in illustration of their paper. 



Specimens, Microscopic Eock-Sections, Photographs and Lantern- 

 Slides, exhibited by H. H. Arnold-Bemrose, Esq., M.A., F.G.S., in 

 illustration of his paper. 



Specimens from the Bhgetic Bone-Bed and the Upper Ehaetic of 

 Garden Cliff, Westbury-on-Severn, exhibited by W. F. Gwinnell, 

 Esq., F.G.S. 



VOL. LIX. 



