XC PEOCEEDINGS OF THE GEOLOGICAL SOCIETY. [Aug. 1 899, 



In addition to the specimen described on p. Ixxxix, the following 

 were exhibited : — 



Distal end of a Mammalian Humerus from Tonbridge, and distal 

 end of Pemur of a Bird from the Wealden Beds of An sty Lane, near 

 Cuckfield, exhibited by Prof. H. G. Seeley, E.E.S., E.L.S., P.G.S., 

 in illustration of his papers. 



Eock-specimens and Microscope-sections of Hauraki Rhyolites, 

 exhibited by J. Park, Esq., P.G.S., and P. Rutley, Esq., P.G.S., 

 in illustration of their paper. 



Rock-specimens from the Loch Awe District and Microscope- 

 sections, exhibited by the Director-General of H.M. Geological 

 Survey, in illustration of the paper by J. B. Hill, Esq., E.N. 



Fecten sp. from the Chalk Marl, Blue Bell Hill Pit, Barham, 

 Eochester, and Hippurites sp. from the Chalk of Wouldham, 

 Eochester, exhibited by G. E. Dibley, Esq., P.G.S. 



Bones of a large bat (Pteropus) found with bones of Dodo at 

 Mare-aux-Yaquois (Mauritius) ; and Slab of Stonesfield Slate 

 crowded with impressions of Trigonia imp)ressa, also showing 

 the second phalange of the wing-finger of a Pterosaur (probably 

 Ornithocheirus), exhibited by W. P. Gwinnell, Esq., P.G.S. 



June 7th, 1899. 



W. Whitaker, B.A., P.E.S., President, in the Chair. 



Joseph Crankshaw, Esq., Montcliffe, Horwich (Lancashire) ; 

 William Bruce Dallas Edwards, Esq., 59 Waldeck Avenue, Bedford ; 

 Lieut. -Col. Thomas English, Hawley, near Dartford (Kent); and 

 Herbert Lapworth, Esq., Stud.Inst.C.E., 20 Duchess Eoad, Edg- 

 baston, Birmingham, were elected Pellows of the Society. 



The List of Donations to the Library was read. 



The Names of certain Pellows were read out for the first time, in 

 conformitj^ with the Bye-Laws, Sect. YI, Art. 5, in consequence of 

 the non-payment of their Arrears of Contributions. 



Mr. P. A. Bathee, in exhibiting, on behalf of Mr. E. D. 

 Darbishire, a pebble found in gravel near St. Margaret's, Bowdon 

 (Cheshire), said that it consisted of liver-coloured quartzite and no 

 doubt once formed part of the Bunter Pebble-beds, though these do 

 not occur in the immediate neighbourhood of Bowdon. It had 

 been reported to Mr. Darbishire as found in river-gravel ; but 

 reference to Sheet 80 N.E. of the Geological Survey map (1-inch, 

 Drift) showed that the deposit was Drift of alleged glacial origin. 

 The specimen was an exceedingly perfect and characteristic example 

 of the pyramid- pebbles or ' Dreikanter,' such as are found in the 

 Diluvium of the North German plain, and in other parts of 

 the world from the Cambrian to rocks now forming, but hitherto 

 not recorded from England. These have been explained as due to : 

 (1) human agency, (2) glacial action (Theile), (3) compression in a 



