C PKOCEEDI^GS OF THE GEOLOGICAL SOCIETY. [June 1914, 



extension of a much older province, which includes the Christiania district 

 and the Scottish Highlands. 



' Some months ago Prof. Iddings and Dr. Washington represented to me 

 the desirability of a more detailed analysis of this rock. One of the two 

 small fragments available was, by the advice of Prof. Watts, sent to America 

 by the Council of the Imperial College of Science & Technology, to whom 

 they belonged, and the paper now about to be read gives the result of the 

 study of this minute specimen by Dr. Washington.' 



The following communication was read : — 



' The Composition of Rockallite/ By Henry Stephens Washing- 

 ton, Ph.D., For.Corresp.G.S. 



Specimens of Ostrea bellovaeina, with remains of the ligament, 

 from the Oldhaven Beds at Beckenham (Kent), were exhibited by 

 E. W. Pocock, B.Sc, F.G.S. 



A geological map of the Yalenii de Munte, on the scale of 

 1 : 50,000. 1911, presented by the Director of the Geological 

 Institute of Rumania, was also exhibited. 



April 8th, 1914. 



Dr. A. Smith Woodwakd. F.R.S.. President, 

 in the Chair. 



The List of Donations to the Library was read. 



The following communications were read: — 



1. ' The Evolution of the Essex River-Svstem, and its Relation 

 to that of the Midlands: By John Walter Gregory, D.Sc, F.R.S.. 

 F.G-.S., Professor of Geoloo-v in the L'niversitv of Glasgow. 



2. ' The Topaz-bearing Rocks of Gunong Bakau (Federated 

 Malay States).' By John Brooke Scnvenor, M.A., F.G.S. 



The following specimens, lantern-slides, etc., were exhibited : — 



Specimens of pebbles from the Essex gravels, and lantern-slides, 

 exhibited by Prof. J. W. Gregory, D.Sc, F.R.S., F.G.S., in 

 illustration of his paper. 



Rock-specimens and microscope-sections exhibited by J. B. 

 Scrivenor, M.A., F.G.S.. in illustration of his paper. 



Geological map of Austria -Hungary : 1 : 75,000, Sheets Iglau, 

 Wels-Kremsniiinster, Enns-Steyr, and Kirchdorf, 1913. Presented 

 by the Director of the K.-k. Geologische Reichsanstalt. 



